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Engineering Science and MEchanics


									Happenings                  Fall 2006

     What’s Inside
Engineering Science
  and MEchanics

                     Happenings Fall 2006   1
        Happenings                               Letter from the Department Head
                  Editor                        ESM is one of the few departments of its kind in the US. It has a distinguished history
          Christine B. Burgoyne                 and is known for focusing on multidisciplinary research and education. A 2005 review by
                                                a blue-ribbon panel consisting of members of the National Academy of Engineering con-
            Assistant Editor                    cluded that ESM has a “longstanding record of excellence as a key element of the College
           Michael Wooddell                     of Engineering with national visibility.”
           Contributing Writers
             Ishwar K. Puri                     We currently have thirty faculty members who are well known for their commitment to
             Susan Trulove                      teaching strong fundamentals. They also support a large number of graduate students and
                                                conduct outstanding research. In these pages you will learn more about their accomplish-
      We want to hear from you!
                                                ments over the past year, as well as about our future aspirations.
  Please forward your comments, sug-
      gestions, and story ideas to:             Due to its focus on the fundamentals, the ESM program is well suited to address the criti-
                                                cal need for interdisciplinary and multidisciplinary education and research. For instance, we
          Anne-Marie Bracken                    have faculty members who have backgrounds in engineering mechanics (the principles on
            ESM Department                      which most areas of mechanical, aerospace, ocean, civil, materials, and perhaps even chemi-
         Norris Hall, Virginia Tech
             Mail code: 0219
                                                cal and mining engineering are based) and engineering science (applied mathematicians and
          Blacksburg, VA 24061                  physicists). Some also have interests in aspects of electrical and computer engineering, com-
            Fax: 540-231-4574                   puter science, and the life sciences.
                                                Therefore, our department focuses on imparting and using fundamental interdisciplinary
   Virginia Tech does not discriminate
                                                skills that address engineering problems. We have collected superb scientists (physicists,
 against employees, students, or appli-
 cants on the basis of race, sex, handi-        chemists and the like), applied mathematicians, and engineers with various backgrounds
   cap, age, veteran status, national           (mechanical, electrical, chemical, etc.) who lead the ESM educational and research pro-
  origin, religion, or political affiliation.   grams. The National Academy of Engineering has issued a document that states that the
 Anyone having questions concerning             nation will need exactly these kinds of engineers in 2020.
discrimination should contact the Equal
Opportunity/Affirmative Action Office.
                                                I invite you to view the faculty and alumni profiles for ESM from the links in our website:
                                       You will realize from their stellar accomplishments that the reputation of
                                                Virginia Tech and its College of Engineering in many ways is de-
         Front Cover Photo
                                                rived from their noteworthy achievements. You will also be able
           Professor Shane Ross                 to clearly see by perusing these pages the kinds of scientists and
        Professor Raffaella De Vita
                                                engineers we value and where we think the future lies.
          Professor Mark Stremler

Saturn Rings, NASA, http://www.olemiss.         A program such ours would not be possible without the staunch
      edu/courses/astr104/Topics/               support of a dedicated staff and the involvement of loyal alumni
  Saturn-N.html [Image provided by              and other well wishers.
          Professor Shane Ross]
                                                We encourage you to come join or donate to ESM. You can be-
         Back Cover Photo                       come part of our undergraduate or graduate programs. We will
“Artist Conception of the Interplanetary        make both your journey and eventual destination very worth-
 Superhighway”, courtesy of JPL, artist,        while.
               Cici Koenig.
          [Image provided by                                                                                                Ishwar Puri,
          Professor Shane Ross]                                                                            Professor and Department Head

     Department Update...............................3                       Graduate Degrees...........................14
     Feature: Meet the New                                                   Alumni News and Update..............16
     ESM Professors......................................4
                                                                             Staff News......................................18
     Faculty News..........................................8
     Student News and Profile......................10
    2     Happenings Fall 2006
                                                                                              Department News
       Virginia Tech Materials Researchers                                                         In April 20-22, the ESM Advisory
       Selected To Improve Military Armor                                                          Committee Meeting was
                                                                                                   attended by Jennifer Holmquest,
                               by Susan Trulove                                                    Chairman, Derome Dunn, Carl
Virginia Tech has been selected by the work on computationally ascertaining the                    Fahrner, David Haeberle, Joe
                                                                                                   Walter, Charles Harris, Sanj
Army Research Laboratory to establish ballistic limit of 28- layer Kevlar woven
                                                                                                   Malushte, Chris Strickland, Jack
a Materials Center of Excellence to soft body armor. “Our primary goal is to
                                                                                                   Ware, and Jay Warren.
develop polymer-based materials to prevent catastrophic failure of personnel
protect personnel and equipment against body armor and vehicles by accurately                 The Virginia Tech team was selected
weapons attack. The center will also offer characterizing the mechanical properties           based on their experience and record
graduate student and postdoctoral scholar of protective thermoplastics for new and            of achievement. “MultiTASC faculty
mentorship and undergraduate research improved multilayered composites,” said                 expertise spans molecular design,
programs.                                  Batra.                                             modeling and constitutive behavior, thin
                                                                                              film performance and characterization,
The      Multilayered Technologies for         The researchers will augment standard
                                                                                              morphology and mechanical performance,
Armored Structures and Composites              impact and ballistic tests done in the lab
                                                                                              and analytical characterization,” said
(MultiTASC) Materials Center of                by testing the composite specimens on
Excellence involves researchers from eight     representative test dummies in collaboration
interdisciplinary research groups, two         with the Mechanical Engineering Center for     The new center will be positioned
colleges, and six academic departments at      Injury Biomechanics. “This will produce        administratively within the Virginia Tech
Virginia Tech, who will team with personnel    a more realistic evaluation and validation     Macromolecules and Interfaces Institute
at the Army Research Lab Weapons and           of the exceptional toughness and energy        (MII), which will provide education,
Materials Research Directorate (ARL-           absorption capabilities of the synthesized     outreach, administrative, and technology
WMRD). Timothy E. Long, professor of           multilayered composites,” Batra said. The      transfer support. The MultiTASC center
chemistry in the College of Science, and       optimized protective composites will then      laboratory and office space will be located
                 Romesh C. Batra, professor    undergo ultra high strain rate testing by      at the Institute for Critical Technology and
                 of engineering science and    ARL.                                           Applied Science (ICTAS) building in the
                 mechanics in the College                                                     Virginia Tech Corporate Research Center.
                 of Engineering, both at       Also, further composites interdisciplinary
                                                                                              ICTAS is also providing administrative
                 Virginia Tech, are the co-    collaboration between the ESM department
                                                                                              and management support. The Advanced
                 technical directors.          and AAPPI focuses on the manufacture
Romesh Batra                                                                                  Materials Characterization Facility, also in
                                               of multifunctional materials with built-in
                                                                                              the ICTAS building, has state-of-the-art
                The       Virginia    Tech     power generation.
                                                                                              instrumentation in the characterization of
MultiTASC center researchers will
                                                                                              nanostructure, which
develop structural materials with chemical
                                                                                              will be an important
resistance, thermal stability, and fracture
                                                                                              resource, Long said,
resistance; transparent materials that are
                                                                                              as will Virginia Tech’s
self-healing with anti-reflection and anti-
abrasions surfaces, and new, efficient
                                                                                              computing resources.
manufacturing processes to create multi-
functional, multi-layered materials.                                                          Co-investigators       at Jack Lesko
                                                                                              Virginia Tech with
ARL-WMRD will provide technology
                                                                                              Long and Batra are
transfer of films, coatings, and self-
                                                                                              Randy Heflin, associate
assembled surfaces, Long said. But
                                                Structural fuel cell manufactured             professor of physics,
researchers at the Advanced and Applied         through vacuum assisted resin transfer        and John R. Morris,
Polymer Processing Institute (AAPPI)            molding (VARTM), Courtesy of Jack
                                                Lesko                                         associate professor of
in Danville, a research component of
                                                                                              chemistry in the College
the Institute for Advance Learning and
                                                                                              of Science; Nakhiah Mike Hyer
Research, will do technology transfer of       By combining fuel cell technology with
                                                                                              Goulbourne, assistant
processes for creating thicker multilayered    composite sandwich structures produced
                                                                                              professor of mechanical engineering; Jack
materials, such as for light weight personal   through pultrusion, the project will produce
                                                                                              Lesko and Mike Hyer, both professors of
armor and vehicle protection.                  more compact and adaptable structures.
                                                                                              engineering science and mechanics, and
                                               This will aid US Army’s transformation to
Work on assessing the ballistic performance                                                   Garth L. Wilkes, professor of chemical
                                               a lighter, more agile and deployable, and
of layered polymer composites will start                                                      engineering in the College of Engineering;
                                               lethal “Objective Force.”
soon. Virginia Tech recently completed                                                        AAPPI Director Ronald D. Moffitt, and
                                                                                              MII director S. Richard Turner.

                                                                                                     Happenings Fall 2006               3
                                                   Department Update

       New Frontiers in Research in
    Engineering Science and MEchanics
                               ESM is very pleased to welcome new faculty beginning Fall of 2006:
                               Raffaella De Vita, Visiting Assistant Professor (in solid mechanics)
                                   Shane Ross, Assistant Professor (in dynamics and control)
    Roop Mahajan, Tucker Chair Professor and Director, Institute for Critical Technologies and Applied Science (in fluid mechanics)
                       Mark Stremler, Associate Professor (in fluid mechanics; and dynamics and control)

               MEET Professor Raffaella De Vita

                                Laurea in Mathematics, University of Naples, 2000
                           M.S., Mechanical Engineering, University of Pittsburgh 2003
                          Ph.D., Mechanical Engineering, Univeristy of Pittsburgh, 2005
                     Postdoctoral Associate, Mechanical Engineering, Virginia Tech, 2005-2006

The Future of Biological Systems                                      Joining The ESM Vision at
                                                                      Virginia tech
Professor De Vita currently works on modeling the mechanics of
parallel-fibered collagenous tissues such as ligaments. She is par-   In joining the ESM faculty, students,
ticularly interested in studying the mechanical behavior exhibited    and staff, Professor De Vita believes
by these tissues during injuries. As a Ph.D. student at Pittsburgh,   the mutual benefit of continuing
she has worked on formulating structural models that describe         knowledge in the area of biomechan-
the response of these tissues under mechanical stimuli. In the        ics. Also, since more than 50% of the ESM undergraduate stu-
future, she would like to complement the theoretical studies with     dents have expressed interest in this area, Professor De Vita will
the experimental investigations. On this line, Professor De Vita      be a necessary addition to the faculty in the biomechanics.
hopes to have a tissue mechanics laboratory at ESM.
                                                                      Professor De Vita completed her Laurea in Mathematics at the
Concurrently, she is also working on modeling the mechanics of        University of Naples in Italy. She is not, however, new to the Unit-
bilayer lipid membrane. The bilayer lipid membrane is the base        ed States as she has completed her masters and doctoral degrees
component of the cell membranes. These lipid assemblies have          at the University of Pittsburgh. Arriving at Virginia Tech in 2005
demonstrated to hold great promise in many applications rang-         for her postdoctoral work with the Department of Mechanical
ing from drug delivery systems to sensors for detecting biological    Engineering, here is what she has to say now about Blacksburg:
                                                                      “Wonderful! I love Blacksburg. I have been here since the fall
                                                                      of 2005 when I came to VT for a postdoctoral appointment at
                                                                      CIMSS in the ME Department. The town offers the perfect envi-
                                                                      ronment for people devoted to their work and family. The nature
                                                                      is impressive. The climate is great with moderate winter, spectacu-
                                                                      lar fall, and long springs and summers. People are very nice (espe-
                                                                      cially people at ESM....they ALL
                                                                      have been wonderful with me). I
                                                                      like that, although pretty small, the
Collagen Architecture (Adapted from Becket et al. (2003))             town is multicultural.”

As Professor De Vita states, “Studying the mechanics of soft bio-     And speaking of life, Professor
logical systems is very challenging. Due to the complexity of such    De Vita currently had a baby boy,
systems, multidisciplinary efforts that bring together engineers,     in July. His name is Luca.
mathematicians, biologists, chemists, and clinicians are required.
Although researchers continue to make progress in this field,
there is much more to be done.... Advances in this field will con-
tribute to prevent injuries and disease and improve the strategies
of their treatment.”

4   Happenings Fall 2006
The Final Frontier:
 MEET Professor
    Shane Ross
      Ph.D., Control and Dynamical Systems,
      California Institute of Technology, 2004
                    B.S., Physics,
      California Institute of Technology, 1998

 The Final Frontier
 Assistant Professor Shane Ross currently works
 on sophisticated methods for robotic spacecraft
 to take advantage of the competing gravitational
 tugs of the different planets and their moons, Shane Ross and Saturn Rings,
 which create a vast network of passageways NASA,
 by which a spacecraft can travel over large dis-                  In 2005, Professor Ross was recognized in an NSF press release
 tances while expending very little fuel. This new approach uses (“Mathematics Unites the Heavens and the Atom”, Press Release
 the same principles by which comets and asteroids are natu- 05-168) for discovering a parallel between the motion of space-
 rally flung about the solar system, but uses subtle control to go craft or comets through the solar system and the motion of atoms
 from one location to the next. This makes possible new classes in a chemical reaction--a hidden unity that has led to innovative
 of space exploration missions which can, for example, do de- ways to design space missions and study both gravitational and
 tailed analysis of multiple moons of Jupiter or Saturn, orbit- chemical systems. He is confident that this fruitful cross-fer-
 ing each moon and taking a fuel-efficient route between them. tilization at the frontier of several research areas will continue.

 However, the idea of using rich natural dynamics to find efficient     Joining ESM’S Vision
 routes has application to other real flows, such as those found in
 the atmosphere, oceans, biology and engineering. The ability to        As Professor Ross states, “I was very motivated to join ESM be-
 navigate agents (e.g., robotic watercraft) efficiently is important    cause of its vision to integrate science fundamentals and advanced
 to keep operational costs low and becomes essential when the           mathematical tools with engineering analysis and design. This
 control is smaller than or comparable in magnitude to the flow.        fits in with my research philosophy of focusing on fundamentals,
                                                                        studying complex systems (e.g., biological processes) from “first
                                                                        principles” in order to apply those fundamentals to challenging
                                                                        engineering problems that expand our knowledge or otherwise
                                                                        improve the quality of life on earth. I hope to benefit the ESM
                                                                        Department and the VT College of Engineering by teaching ma-
                                                                        terial to students that will give them the fundamentals and creativ-
                                                                        ity they need to innovate.”

                                                                        Dynamical Systems, the Three-Body Problem, and Space Mission
                                                                        Design is a new book co-authored by Professor Ross and is due
                                                                        to be published in 2007. Also, his work on space flight mechan-
                                                                        ics, incorporating ideas from fluid dynamics and chemistry, was
 Superhighway.” courtesy of JPL, artist, Cici Koenig.
                                                                        recently featured in the journal Science, and popular science maga-
                                                                        zines New Scientist and American Scientist.
 Professor Ross’ work literally relates to exploring the “final fron-
 tier,” space, as well as exploration of frontiers such as the oceans   Professor Ross holds a doctoral degree on Control and Dynami-
 and planetary atmospheres. His recent work has also shed light         cal Systems from California Institute of Technology. While he
 on hidden unities at the frontier of research fields which have a      may have calculated the mathematics of the heavens and atoms--
 natural, but until recently not widely recognized, overlap. He has     he still has to experience “winter and this stuff you call ‘snow’!”
 helped bring about a cross-fertilization of concepts and math-
 ematical methods for dynamics and control amongst fields such
 as fluid, molecular, and gravitational dynamics.

                                                                                                      Happenings Fall 2006                5
                                                               Faculty News
                                                                FLUID MECHANICS:
                                                          Meet Professor Mark Stremler
                                                                    Ph.D., Theoretical and Applied Mechanics, University of Illinois at
                                                                                         Urbana-Champaign, 1998
                                                                    M.S., Theoretical and Applied Mechanics, University of Illinois at
                                                                                        Urbana-Champaign, 1995
                                                                      B.S., Mathematics and Mechanical Engineering, Rose-Hulman
                                                                                      Institute of Technology, 1993

                                                                              “It was the first research effort that successfully used the con-
                                                                              cept of chaotic advection to design and implement a practical
                                                                              microchannel mixing device. (Another researcher had proposed
Frontiers in Fluid Mixing                                                     a different device based on chaotic advection, but he never got
                                                                              it to work and never published anything other than a conference
Professor Mark Stremler’s main area of research activity is in                paper.) Also, it was a nice research group, including two very well
mixing of luminous fluids, with applications including mixing in              known people in fluid mechanics (Hassan Aref and Ron Adrian).
microchannels and enhancing DNA analysis. Recently, Profes-                   Furthermore, the mixer works reasonably well, so a number of
sor Stremler received funding from NSF, in collaboration with                 people/entities have integrated it into other devices.”
Phil Boyland at University of Florida, to examine “Topological
fluid mechanics of stirring.” This work uses some powerful tools              Current areas of application for his work include DNA micro-
from topology, particularly the Thurston-Nielsen classification               array analysis and gradient generators for chemotaxis studies.
theorem, to examine how the motions of boundaries influence                   Professor Stremler is still involved in studying the fluid systems
the surrounding fluid. Much of the theoretical research on mix-               that support these biological applications. For DNA analysis on
ing in laminar flow systems centers on using dynamical systems                microarrays, it is important that the fluid solution containing the
theory to identify and predict chaos in the system. The estab-                target (ie., unknown) DNA be distributed rapidly and uniformly
lished tools for doing this are good at identifying the fine details          across the microarray surface. He continues to be involved with
of a given case, but these details cannot usually be extrapolated to          mixing research in pulsed source-sink systems, which have suc-
other cases. Thus, these tools require large parametric studies in            cessfully been used to improve results in DNA microarray analy-
order to characterize mixing under various conditions in a given              sis. For the chemotaxis studies, the underlying microfluidic sys-
system. Their newly funded research program will develop the                  tem must generate a well-defined concentration gradient across
use of the Thurston-Nielsen classification theorem and related                a wide microchannel. Furthermore, he is currently involved in
topological methods for providing global, robust predictions of               research aimed, in part, at improving the devices used to generate
chaos in laminar flow systems.                                                these gradients.

                                                                              Dr. Stremler holds B.S. (‘93) degrees in both Mathematics and Me-
                                                                              chanical Engineering from Rose-Hulman Institute of Technology
                                                                              and M.S.(‘95) and Ph.D (‘98) degrees in Theoretical and Applied
                                                                              Mechanics from the University of Illinois at Urbana-Champaign.
                                                                              He served as Assistant Professor of Mechanical Engineering at
                                                                              Vanderbilt University. Dr. Stremler is the recipient of the Army
  initial configuration    finite order            pseudoAnosov
                                                                              Research Office Young Investigator Award, was selected as the
  Experiments with Stokes flow in a 3-rod stirring device: P.L. Boyland,      Tau Beta Pi Teacher of the Year at Vanderbilt in 2004, received
  H. Aref & M.A. Stremler (2000) Topological fluid mechanics of stir-
  ring, Journal of Fluid Mechanics 403, 277-304                               the Stanley I. Weiss Outstanding Thesis Award at UIUC, and held
                                                                              an Office of Naval Research Fellowship from 1993-96.
Additionally, Professor Stremler believes that the highest-impact
in the frontier area is in microscale fluid mixing for biological ap-         Professor Stremler will be teaching a graduate class on Viscous
plications (like DNA analysis, chemotaxis studies, etc).                      Flow next spring. And here’s what he has to say about Blacks-
His paper “Passive mixing in a three-dimensional serpentine mi-               “So far, so good. There are many similarities with of Franklin,
crochannel” published in the Journal of Microelectromechanical Sys-           TN, the town from which we moved I would say that it has met
tems in 2000, is now considered a classic and has been cited over             our expectations.”
200 times. Professor Stremler speaks about this article:

6    Happenings Fall 2006
    Critical Technology For Frontier Research:
        Meet Professor Roop Mahajan By Lynn Nystrom

                                     B.S. and M.S., Punjab Engineering College, Chadigarh, India;
                                                       Ph.D., Cornell Unviersity
                                                                      and application of MEMS in cardiovascular applications.
                                                                      “Dr. Mahajan’s efforts in these interdisciplinary fields, as well in
                                                                      cellular engineering microsystems (CEMS), artificial neural net-
                                                                      works, humanistic engineering, thermal sciences, and solar energy,
                                                                      makes him a true Renaissance man for the ICTAS directorship,”
                                                                      Benson said.

                                                                      ICTAS leverages Virginia Tech’s existing research strengths and
                                                                      builds on the synergies of Virginia Tech’s talented faculty to pur-
                                                                      sue multidisciplinary research. Mahajan said, “I am excited about
                                                                      joining a team of high class individuals who collectively are com-
Artist’s Rendering of ICTAS 1                                         mitted to take Virginia Tech to the next level of prominence. I
                                                                      am influenced by my 15 years of employment at Bell Labs, and
Roop L. Mahajan, an internationally known researcher with ex-         have come to believe that we live in Schumpeterian times (Joseph
pertise ranging from nanotechnology to bio micro-electro-me-          Schumpeter was an economist who predicted more than 50 years
chanical systems (Bio-MEMS), became the director of Virginia          ago that the business landscape would be shaped by a continual
Tech’s Institute for Critical Technology and Applied Science (IC-     gale of creative destruction).”
TAS), effective July 1.
                                                                      Professor Mahajan, who holds the Roubos Chaired Professorship
“We are extraordinarily pleased to secure a person of Dr. Ma-         of ME at Colorado, has received numerous awards including the
hajan’s stature to become the director of our research institute,”    American Society of Mechanical Engineers (ASME) 2003 Charles
said Richard C. Benson, dean of Virginia Tech’s College of En-        Russ Richards Memorial Award for outstanding achievement in
gineering and the director of the ICTAS Stakeholder Committee.        Mechanical Engineering. He also received the 2002 ASME Heat
Benson led the six-month search for the director.                     Transfer Memorial Award, and the Subaru Educator of the Year
                                                                      Award in 2002. He is an ASME Fellow. He holds three patents
Professor Mahajan comes to Virginia Tech from the University          and has five invention disclosures.
of Colorado at Boulder where he is the founder and current di-
rector of the Center for Advanced Manufacturing and Packaging         Professor Mahajan was employed by AT&T Bell Labs from 1979
for Microwave, Optical and Digital Electronics (CAMPmode).            until 1991 as a research leader and supervisor in thermal and com-
Since 1992, CAMPmode has functioned as an industry-consor-            putational     engineering.
tium sponsored center. In 1995, the center became a National          He received the Bell Labs
Science Foundation Industry/University Cooperative Research           Fellow Award in 1989, an
Center. CAMPmode currently focuses on nanotechnology and              honor bestowed to only
on MEMS.                                                              about one percent of the
                                                                      entire technical commu-
He is also the founder and current co-director of MicroElectronic     nity of Bell Labs.
Devices in Cardiovascular Applications (MEDICA). This interdis-
ciplinary center draws on faculty at Colorado University’s Health
Sciences Center and its College of Engineering and Applied Sci-
ences. Its purpose is to foster scientific advancement in the study                               Construction has begun on ICTAS 1

                                                                                                    Happenings Fall 2006                7
FACULTY NEWS AND AWARDS                                          faculty news
                  Professor Raffaella De Vita   ing Society (BMES). Professor Schneck is       implications from the design of structures
                  was awarded the Ameri-        recognized “for pioneering contributions       able to withstand tropical storms and hur-
                  can Society of Bio-           to biomedical engineering education, sig-      ricanes to the prognosis and prediction of
                  mechanics      President’s    nificant achievements in blood rheology        the effective performance of various ma-
                  Award during its annual       and musculo-skeletal research, and for         chines and components.
                  meeting that was hosted       many years of dedicated public service to
                  at Virginia Tech This         the biomedical engineering community.”         Professor Dan Inman
award “recognizes meritorious research          BMES Fellows are named for national            is an author of the
involving highly innovative use of experi-      and international contributions and for in-    topmost downloaded
mental or theoretical methods in any field      spired leadership.                             article in the Journal of
of biomechanics that is presented as a                                                         Sound and Vibration. The
poster at the annual ASB meeting.”              Professor       Muhammad                       paper, written by Wang,
                                                Hajj, director of the ESM                      K.; Inman, D.J.; Farrar,
ESM/MSE Profes-                                 Graduate Program and                           C.R., is entitled “Modeling and analysis
sor Norman Dowling                              expert in fluid dynamics,                      of a cracked composite cantilever beam
presented a lecture on                          dynamical systems and                          vibrating in coupled bending and torsion.”
“Review of Fatigue Life                         prognosis, has been named
Prediction Methods” to                          Virginia Tech Scholar of                                       Professor Stephen P.
the Gas Turbine Engi-                           the Week. He has been so                                       Engelstad (PhD, Engi-
neering Department of                           recognized for his outstanding research on                     neering Mechanics ‘90),
Siemens Power Generation Company in             the characterization and modeling of tur-                      Technical Fellow of the
their Eminent Professor Lecture Series on       bulent fluid flows, extreme loads from hur-                    Lockheed Martin Aero-
April 13. Professor Dowling is an interna-      ricanes and tornados on low-rise structures,                   nautics Company, and
tionally renowned scientist in the area. He     aeroelastic behavior of wings and bridges                      Professor Michael W.
traveled in May/June to Japan courtesy of       and the fatigue life of structures and their   Hyer, N. Waldo Harrison Professor of
the Department of Mechanical Engineer-          components. Professor Hajj’s research,         Engineering Science and Mechanics, have
ing at Fukuoka University in Fukuoka, Ja-       which involves theoretical analyses in con-    been elected General Chair and Technical
pan to lecture and visit with colleagues. He    nection with experimental measurements         Program Chair, respectively, of the 48th
is also a member of our sister department,      or numerical simulations, has far reaching     AIAA/ASME/ASCE/AHS/ASC Struc-
Materials Science and Engineering (MSE).

                   Professor Jack Duke
                   has been selected as
                   the new editor-in-chief
                   of Research in Non-
                                                                          Professor David Dillard has been named the Adhesive
                   destructive Evaluation
                                                                          and Sealant Science Professor in Engineering Science and
                   (RNDE). The selection
                                                                          Mechanics by the Virginia Tech Board of Visitors. This
                   was made subsequent
                                                                          endowed professorship was established at Virginia Tech in
to an international search and following a
                                                                          1989 by the Adhesives and Sealant Council. Professor Dil-
series of extensive interviews that were re-
                                                                          lard has been a member of the Virginia Tech faculty for 21
cently completed in Orlando, Fla. RNDE
                                                                          years. He also served as Director of the Center for Adhe-
is an archival publication that is ranked
                                                                          sive and Sealant Science from 1999-2004, and as Founder
2nd (of 23) by ISI in the area of Materials
                                                                          and Interim Director of the Macromolecules and Interfaces
Science, Characterization & Testing based
                                                                          Institute in 2004. He has held visiting positions at National
on impact factor. Professor Duke will as-
                                                                          Taiwan University and Oak Ridge National Laboratory.
sume his responsibilities in January 2007.
This continues a proud tradition for ESM
                                                   Professor Dillard is internationally renowned for his work in the general area of
and Virginia Tech in that the retiring edi-
                                                   adhesives and sealants, and serves as President of the Adhesion Society. He is the
tor-in-chief is Engineering Associate Dean
                                                   recipient of the 2005 Best Paper Award for the Advanced Composite Materials
Edmund G. Henneke, II.
                                                   and Systems Track of the Society for Experimental Mechanics. He also received
                                                   the 1995 and 1991 George G. Marra Awards of Excellence from The Society of
Professor Daniel Schneck,
                                                   Wood Science and Technology. He was the winner of the 1995 Best Presentation
who is ESM Professor
                                                   Award from ASTM D-30. The GenCorp Signature University Award was given to
Emeritus, has been induct-
                                                   him in 1999, and in 2002 he received the College of Engineering Deans Award
ed into the 2005 “Inaugu-
                                                   for Research Excellence. He also serves on the editorial board for the Journal of
ral Class” of Fellows of
the Biomedical Engineer-

8   Happenings Fall 2006
 tures, Structural Dynam-                       expert in fracture mechanics and nonde-                               Professor Scott Case
 ics, and Materials (SDM)                       structive evaluation of composite materi-                             has been selected to
 Conference to be held at                       als. His research places emphasis on high                             participate in the ABET
 the Sheraton Waikiki in                        performance computing simulations and                                 Institute for the Devel-
 Honolulu April 23-26,                          scientific visual data analysis of simula-                            opment of Excellence
 2007. Co-located with                          tion results. Professor Kriz founded the                              in Assessment Leader-
 the 48th SDM Confer-                           Laboratory for Scientific Visual Analysis                             ship (IDEAL) that was
 ence are the 15th AIAA/ASME/AHS                in 1991, which has resulted in many inno-         held in Baltimore from July 31-August 4,
 Adaptive Structures Conference, the 9th        vations by the university’s faculty, staff, and   2006. Professor Case participated in this
 AIAA Non-Deterministic Approaches              students. He is also the holder of the W.S.       workshop with over thirty other faculty
 Conference, the 8th Gossamer Spacecraft        “Pete” White Innovations in Engineering           members from around the world, as an
 Forum, the 3rd AIAA Multidisciplinary          Education Award.                                  IDEAL Scholar. His selection highlights
 Design Optimization Specialist Confer-                                                           the commitment that ESM has to a high
 ence, and the AIAA Dynamics Specialist         Furthermore, Professor Ron Kriz will be           caliber undergraduate and graduate educa-
 Conference. These collocated conferences       keynote speaker at the International Con-         tion, particularly one that is responsive to
 are a widely-acknowledged annual event         ference on Computational and Experi-              change and emerging technologies.
 that provide a unique forum dedicated to       mental Engineering and Science to be held
 the latest developments in basic and ap-       in Miami, Florida from 3-8 January, 2007.         Additionally, Professor Case has been
 plied research in structures, structural dy-   Professor Kriz has been invited to speak          named Virginia Tech Scholar of the Week
 namics, and materials, including analysis,     on “Envisioning Structure-Property Rela-          by the Office of the Vice President for
 experiment, and design.                        tionships at the Nano and Macro Scales:           Research. He has been recognized for his
                                                Graphics for Presentation and Insight.” In        significant contributions to life prediction
               The Vice President for           the talk he will demonstrate how research-        techniques for composite materials, the
               Research has recognized          ers at Virginia Tech have used both high          experimental characterization of elevated
               Professor Ron Kriz, as-          performance computers (HPC) and visual-           temperature polymeric composites, his ex-
               sociate professor of en-         ization resources in interesting and unique       tensive work in the area of micromechani-
               gineering science and            ways.                                             cal modeling of composite behavior and
               mechanics, as the Scholar                                                          on the durability of fuel cell components.
 of the Week. Professor Kriz is a leading
                                                                                                                   Professor Romesh C. Batra,
                                                                                                                   Clifton C. Garvin Profes-
                                                                                                                   sor of Engineering Science
                                                                                                                   & Mechanics, was honored
                                                                                                                   with the Doctor of Science
The ESM team of Professors Scott Hendricks, Glenn Kraige, and Don Morris                                           (Honoris Causa) degree on
has been selected by the Virginia Tech Center for Innovation in Learning to receive                                October 24 by his alma
the 2006 XCaliber Award for a team involved in teaching with technology. All three are            mater, Thapar University, Patiala, India. He
celebrated teachers who, between them, have won numerous institutional and national               is only the second person to receive this
teaching awards and have a combined 100 years of teaching experience. Unified lecture             distinction from the institution since its in-
software has been developed and sustained in ESM in various forms for over three                  ception nearly fifty years ago. The Senate
decades to help teach the three main courses in the Engineering Science and Mechanics             of Thapar University was unanimous in its
Department, which are taught to students in many other programs. The software is                  recommendation of Professor Batra for
now in the third generation and is continually improving and evolving with use and in             the degree in recognition of his academic
response to student feedback. The recognition of their achievements is consistent with            brilliance, matchless contributions to en-
the high standards that we set for teaching, research, service and outreach in ESM.               gineering education, highly competent
                                                                                                  administrative abilities and his continuous
                                                                                                  association with the most prestigious uni-
                                                                                                  versities of the world. It particularly noted
                                                                                                  his magnanimity, humility, simplicity and

                                                                                                         Happenings Fall 2006                 9

     Virginia Tech
     Space Elevator

       Team Members:
       Brandon Corder
         Ryan Steele
       David Gillespie
        Chris Sturgill
        Meghan Gloyd
      Samantha Vaillant
         Clay Myatt
        Elliotte Want

     Professor Jack Lesko

  The Insulated
Rail Joint Project

      Team Members:
      Seth Lambrecht
     Heike Lohse-Busch

 Professor David Dillard
   Professor Ray Plaut

10     Happenings Fall 2006
    Optimization of
   an Electroactive

       Team Members:
          Joseph Ash
       Matthew Degner
           Sara Jasin
        Jordan Milford
         Kevin Nash
        Josh Oechslin
        Catherine Ross
        Brandon Shue

    Professor John Cotton

   the Mechanisms of
    Balance Control:
    An Inverted Pen-
      dulum Model

       Team Members:
        Frances Davis
           Nu Ma

   Professor Michael Madigan

Happenings Fall 2006     11

                            Next STOP: SPACE
Once again, an Engineering Science and Mechanics senior design        used as the track for the climber.
project is in the news. This time, following on the heels of the      The VT team is participating in
“Artificial Arm Project” that was featured widely last year in the    the climber competition. Their
international media, the spotlight is on our “Space Elevator Proj-    goals for the project were to de-
ect” that involves eight ESM seniors.                                 velop a light-powered climbing,
                             The 2005-06 Engineering Science          and un-powered descent system,
                             and Mechanics Creative Design            a friction based climbing com-
                             class included an integrated team        ponent a light-weight support
                             of seven seniors (David Gillespie,       structure for power and climb-
                             Meghan Gloyd, Clay Myatt, Ryan           ing components, and an auton-
                             Steele, Chris Sturgill, Samantha Vail-   omous control system for the
                             lant, and Elliotte want) as well as      climber. Finally, they will inte-
                             two freshmen assistants (Brandon         grate these features to compete
                                                                      in the 2006 competition.             Prototype[courtesy of Space Elevator team]
                             Corder and John Helveston). They
Artist’s Rendering of a performed the initial design for a
Space Elevator [courtesy of                                           The project was suggested to
Space Elevator team
                            project that will compete in the 2006     ESM by longtime well-wishers, Pat (‘72 ESM) and Nancy Artis,
                            Space Elevator Games, which will be       who have provided the initial funding. Our senior design teams
held at the X-PRIZE Cup in Albuquerque, NM on October                 are mentored by Professors Jack Lesko and Marie Paretti. The
20-21.                                                                purpose of the project is to design an elevator that will take cargo
The Space elevator games consist of two main competitions. The        and occupants into space. Such a space elevator would have one
first competition requires the design of a climber prototype used     end on the Earth, perhaps over an ocean, and the other end teth-
to propel an elevator capable of carrying up to 15 ton payloads.      ered to a satellite in synchronous orbit, which stays in the same
The second competition consists of developing a tether material       position relative to the Earth’s surface.

                                AWARDS AND SCHOLARSHIPS, 2005-2006

            Undergraduate Scholarships                                  Graduate Scholarships and Awards

                       Frank J. Maher Scholarship                                   ESM Graduate Teaching Fellowships
                            Joshua Wargo                                                  Chris Chabalko
                                                                                        Mohammed Daqaq
                  Loretta and Ken Reifsnider Scholarship
                              Jacob Grohs                                          Pratt Presidential Graduate Fellowships
                                                                               Dennis Anderson           Alejandro Pacheco
                    Dr. Robert A. Heller Scholarship
                                                                               Saurabh Bisht             Nathan Post
                       Christopher Mesrobian
                                                                               Anindya De                Davide Spinello
                                                                               Piyush Grover             Miao Sun
                    Louis O’Shaughnessy Scholarship
                                                                               Wen Jiang                 Phanikrishna Thota
                          Michael Whitley
                                                                               Yongqiang Li              Anoop Varghese
                                                                               Osama Marzouk             Yihong Yang
                    ESM Advisory Board Scholarship
                          Kevin Taylor
                                                                                Amir Chanda and Dewki Bai Batra Scholarship
                                                                                            Davide Spinello
                    ESM Advisory Board Scholarship
                         Wilson Johnson
                                                                                         Dr. Manuel Stein Scholarship
                                                                                             Apoorva Shende
                     Alice & Dan Pletta Scholarship
                            Zachary Vane
                                                                                         Daniel Frederick Scholarship
                           Sara Matrangola
                                                                                             Chris Chabalko

                                                                                           Cunningham Fellowship
                                                                                              Tom Haynie

12   Happenings Fall 2006
UnderGraduate PROFILE: Lohse-Busch and Lambrecht
    receive Outstanding senior Project award
Heike Lohse-Busch and Seth Lambrecht           use for over a century.
have been selected as this year’s recipients   Remaining           virtually
of the Dan H. Pletta Award for an              unchanged over this time
outstanding senior project. Ms. Lohse-         span, however, insulated
Busch (B.S. ESM and B.S. Physics, cum          joints are becoming
laude) and Mr. Lambrecht (B.S. ESM) were       increasingly problematic as
advised by ESM Professor Dave Dillard          axle loads have increased
and CEE Professor Paul Plaut on their          substantially.         High
project entitled “The Insulated Rail Joint     tonnage lines experience
Project.”                                      insulated joint failures in
                                                as little as 10% of the life
                                                of the rails, necessitating
                                                repeated replacements
                                                                                                                 [ Courtesy of Seth Lambrecht]
                                                that are costly and time
                                                consuming.The goal of this project was         experiments and finite element analysis
                                                to design an improved insulated rail joint     models in ABAQUS. The results were
                                                to replace existing joints.                    then validated by comparison to analytical
                                                                                               beam on elastic foundation analysis using
                                                During their senior project, Ms. Lohse-        the Rayleigh-Ritz method performed in
                                                Busch and Mr. Lambrecht developed              Mathematica.
                                               analytical and numerical solutions for a
Insulated rail joints are used every couple    tapered joint configuration proposed by         Dynamically, they optimized the cut angle
of miles along most railroads for locating     the Association of American Railroads’          analytically using the Galerkin method
trains, controlling signal blocks, and         Transportation Technology Center, Inc.          with the beam on elastic foundation
detecting rail breaks. The joints have         (TTCI). To determine the optimal cut angle      theory. All of their results were compared
undoubtedly saved many lives and much          and rail tip geometry Ms. Lohse-Busch           to the existing joint to determine the most
property damage through their widespread       and Mr. Lambrecht utilized design of            efficient cut angle and rail tip geometry.

In the early 90’s when Virtual Reality was in its infancy, many realized its potential to become a powerful training
tool for a multitude of professions. Now in 2006, the capabilities of VR are being put to use with the help of
engineers like Dr. Mohammed Daqaq.

Mohammed hails from Bethlehem, Palestine. He received his B.S degree at the Jordan Institute for Science and
Technology, Irbid, Jordan in 2001, and his M.S. degree from Virginia Tech in 2003 under the supervision of Pro-
fessor Ali Nayfeh. For his M.S thesis, Mohammed developed a state-of-the-art ship and crane simulator in the VT
Computer Aided Virtual Environment (CAVE). The integrated simulator serves as a platform to study the dynam-
ics of ships and ship-mounted cranes and as a facility to train crane operators. The crane operator functions in a highly realistic virtual
environment complete with high fidelity, 270-degree scene visualization, base motion provided by a six-degree-of-freedom moving
platform, physical control console, and chair. This futuristic approach to training can be used in numerous professions to simulate
hazardous conditions in real time without placing the trainee in harms way.

                                  For his Ph.D. dissertation, Mohammed worked under the supervision of Professors Ali Nayfeh and
                                  Ziyad Masoud studying nonlinear dynamics and control of nonlinear systems. At the macro scale,
                                  Mohammed designed and built a 1/10 scale model of a container crane, which serves as a test-bed
                                  for different crane controllers. This facility consists of a 7-meter track, a trolley, hoisting motors, and
                                  a 50-lb payload. At the micro scale, Mohammed worked on the modeling, dynamics, and control of
                                  electrically-actuated torsional micromirrors. Torsional micromirrors are used for optical switching
                                  in fiber optic networks. His work focused on the dynamic characterization of these mirrors and on
                                  developing effective control techniques to realize their fast and precise orientation which would allow
The T-ACS crane-ship as part of
a simulation that was carried                                       Graduate Profile Continued on Page 18...
out in the CAVE

                                                                                                     Happenings Fall 2006                13
                                        M . S . G r a d u at e s
                                  Fa l l 2 0 0 4 - S u m m er 2 0 0 5
Student              Title of Thesis                                                                           Chairman/Co-Chairman

Anderson, Dennis     An Investigation of the Mechanical Implications of Sacroplasty Using Finite Element       Cotton
                     Models Based on Tomographic Image Data

Bisht, Saurabh       Methods for Structural Health Monitoring and Damage Detection of Civil and Mechanical     Singh
Carneal, Jason       Analysis and Testing of a Novel Digital Particle Image Velocimetry System                 Telionis

Chantjaroen, Chat    Non-Thesis                                                                                Thangjitham
Charonko, John       A Nondimensional Scaling Parameter for Predicting Pressure Wave Reflection in Stented     Telionis

Davidson, Bradley    Biomechanical Evaluation of Lumbar Extensor Fatigue Effects on the Postural Control       Madigan

Gibbs, Jason         Experimental Determination of Lift and Lift Distributions for Wings in Formation Flight   Telionis

Maines, Nathan       Use of the Discrete Vortex Method to Calculate Wind Loads Over a Surface-Mounted          Hajj
                     Prism and a Bridge Cross-Section with Flaps

Mosher, Bryan        Failure Prediction of Adhesively Bonded Wood Joints                                       Thangjitham

Rullan, Jose         Flow Control Over a Circular Arc Airfoil Via Periodic Blowing                             Telionis

Singh, Hitendra      Determining Interfacial Adhesion Performance and Reliability for Microelectronics         Dillard
                     Application Using a Wedge Test Method

Thompson, Joe        Compaction and Cure of Resin Film Infusion Pregs                                          Batra

                                      P h . D . G r a d u at e s
                                  Fa l l 2 0 0 4 - S u m m er 2 0 0 5
Student                  Title of Dissertation                                                                 Chairman/Co-Chairman

Aimmanee, Sontipee       Deformation and Force Characteristics of Laminated Piezoelectric Actuators            Hyer

El-Okda, Yasser          Experimental and Numerical Investigations of the Effects of the Incident              Hajj/Ragab
                         Turbulence on the Flow Over a Surface-Mounted Prism

Elsayed, Mohamed         Large Eddy Simulation and Wavelet Analysis of the Flow Field Around a Surface         Hajj/Ragab
                         Mounted Prism

Ge, Zhongfu              Analysis of Surface Pressure and Velocity Fluctuations in the Flow Over               Hajj
                         Surface-Mounted Prisms

Love, Bryan              Multiscale Analysis of Failure in Heterogeneous Solids Under Dynamic Loading          Batra

Qin, Lihai               Lift and Drag Modeling on Stationary and Forced Oscillating Cylinders with            Hajj
                         Higher-Order Spectral Moments

Rildova                  Seismic Performance of Rail-Counterweight System of Elevator in Buildings             Singh

14   Happenings Fall 2006
                                                  M . S . G r a d u at e s
                                            Fa l l 2 0 0 5 - S u m m er 2 0 0 6
n   Student               Title of Thesis                                                                                       Chairman/
    Abada, Chris          The Influence of Reinforcement Architecture on the Fracture Behavior of Selectively                   Hyer
                          Reinforced Materials

    Bausano, John         Structural Integrity of Polymer Matrix Composites Exposed to Fire Conditions                          Lesko

    Brown, Steve          Time-and Temperature-Dependence of Fracture Energies Attributed to Copper/Epoxy Bonds                 Dillard

    Deso, Steven          Non-Thesis                                                                                            Granata

    England, Scott        Quantifying Dynamic Stability of Musculoskeletal Systems Using Lyapunov Exponents                     Granata

    Fazio, James          Durability of Chopped Fiber-Reinforced Polymeric Composites for Fuel Cell Applications                Lesko

    Franklin, Timothy     Linear System Analyses of the Role of Reflex Gain and Delay in a Dynamic Human Spine Model Granata

    Franz, Jason          Non-Thesis                                                                                            Granata

    Madeo, Angela         Effect of Micro-Particle Additions on Frictional Energy Dissipation and Strength of Concrete          Dowling

    Mehl, Nick            Implementation of Infrared Nondestructive Evaluation in Fiber-Reinforced Polymer                      Duke
                          Double-Web I-Beams

    Nicewonder, Suzanne Non-Thesis                                                                                              Batra

    Park, Kiwon           Non-Thesis                                                                                            Granata

    Post, Nathan          Modeling the Residual Strength Distribution of Structural GFRP Composite Materials Subjected Case & Lesko
                          to Constant and Variable Amplitude Tension-Tension Fatigue Loading

    Ryan, Steve           Fatigue Simulation of Human Cortical Bone Using Non-Homogeneous Finite Element Models                 Cotton
                          to Examine the Importance of Sizing Factors on Damage Laws

                                            P h . D . G r a d u at e s
                                        Fa l l 2 0 0 5 - S u m m er 2 0 0 6
    Student                Title of Dissertation                                                                                Chairman/
    Caba, Aaron            Characterization of Carbon Mat Thermoplastic Composites: Flow and Mechanical Properties Batra
    Chevva, Konda          Practical Challenges in the Method of Controlled Lagrangians                                         Nayfeh
    Daqaq, Mohammed        Adaptation of Nontraditional Control Techniques to Nonlinear Micro and Macro Mechanical              Nayfeh
    Donnelly, Martin       An Experimental Investigation of Spanwise Vortices Interacting with Solid and Free Surfaces          Telionis
    Gantovnik, Vladimir    An Improved Genetic Algorithm for the Optimization of Composite Structures                           Gurdal
    Hassan, Noha           Damage Development in Static and Dynamic Deformations of Fiber-Reinforced Composite                  Batra
    Moorhouse, Kevin       Role of Intrinsic and Reflexive Dynamics in the Control of Spinal Stability                          Granata
    Porfiri, Maurizio      Analysis by Meshless Local Petrov-Galerkin Method of Material Discontinuities, Pull-in Instability in Batra
                           MEMS, Vibrations of Cracked Beams, and Finite Deformations of Rubberlike Materials
    Setoodeh, Shahriar     Optimal Design of Variable-Stiffness Fiber-Reinforced Composites Using Cellular Automata             Gurdal
    Zeiger, Matthew        The Dynamic Character of the Flow Over A 3.5 Caliber Tangent-Ogive Cylinder in Steady and Telionis
                           Maneuvering States at High Incidence

                                                                                                          Happenings Fall 2006                15
Alumni News
                                                                  ESM Alumni Distinguished Professor
ESM alumni, Chris Chabalko (Ph.D.’06)
and Greg Vogl (Ph.D.’06), have been                               Emeritus C. W. “Bill” Smith Inducted
awarded prestigious National Research                             into Virginia Tech Academy of
Council (NRC) postdoctoral opportunities.
                                                                  Engineering Excellence
Chris will be an NRC Postdoctoral Fellow
at Wright- Patterson Air Force Base in                            by Lynn Nystrom
Dayton, Ohio through the Air Force Office
of Scientific Research (AFOSR). There,                            Few retirees have the honor of hearing themselves described as
he will examine the aeroelastic stability of                      an “icon” in their field. One of the most deserving is Virginia
structures with application to micro air                          Tech’s C. W. “Bill” Smith, 80, whose name is synonymous with
vehicles (MAVs). Chris will also apply his                        its Department of Engineering Science and Mechanics (ESM).
knowledge of fluid structure interaction to
model the stability of F-16 planes.            ESM alumnus and benefactor Pat Artis, a 1972 engineering mechanics (EM)
                                               graduate, explains some of the rationale for Smith’s prominent status: “During
                                               the ‘60s and the ‘70s, Bill taught experimental stress analysis, the capstone senior
                                               level experimental methods and lab course. This was the most time consuming and
                                               difficult undergraduate course in EM. Everyone knew this because Bill, with his
                                               trademark cackle of a laugh, made it clear during the first lecture.”

                                               “He further explained that anyone who passed the course would be treated to a
                                               wonderful dinner prepared by his wife Doris at their historic home in Christiansburg.
                                               Like many seniors before and after me, that was the most satisfying meal that I have
                                               ever eaten. That course also sealed a life long friendship (with Bill) and focused my
                                               career on experimental methods.”
Greg will be an NRC Postdoctoral Re-
search Associate at the National Institute     In Smith’s field of research, fracture mechanics, his work is known “worldwide”
of Standards and Technology (NIST) in          as are his contributions to the discipline of photoelasticity, adds Robert Heller, an
Gaithersburg, Maryland. He will work           engineering colleague. In recognition of his accomplishments, Smith has received
with Dr. Jon Pratt (ESM ‘97) who received      numerous honors including the 1983 M. M. Frocht Award, the 1993 William M.
a 2003 Presidential Early Career Award         Murray Medal, and the 1995 B.J. Lazan Award, all from the Society of Experimental
for his contributions in measurement sci-      Mechanics (SEM).
ence, including the realization of traceable
nanoNewton force measurements. There,          Smith is the epitome of the hometown boy who made good. Born in Christiansburg,
he will create and implement a compre-         Va., he lives today in the same home his grandfather built in 1905 and where he
hensive model for small-amplitude fre-         was raised. The 1929 stock market crash forced the sale of the home, but Smith
quency modulation atomic force micros-         was able to purchase the landmark building back in 1948. He continues to live there
copy (FM-AFM). Greg hopes to develop           today.
an adaptive AFM method for the first time      His commute in 2006 is also another sign of his more profitable times. In the 1940s
that constantly tweaks its control param-      when he was attending Virginia Tech as an engineering student, he would often
eters in real-time.                            hitch a ride on the local mail truck or talk the resident taxi cab driver into giving
                                               him the nine-mile ride for a “small fee.” He would then walk from the Cambria taxi
                    ESM alumnus, Dr.           stand to his Christiansburg home.
                    Pavlos Vlachos, pre-
                    sented the Eleventh        The enterprising youngster also found innovative ways to support himself. When
                    Annual Young Inves-        he inherited a large number of mail boxes from the building his grandfather owned,
                    tigator Lectureship in     Smith approached Virginia Tech’s Vice President for Finance, Stuart Cassell, and
                    Ocean Engineering at       brokered a deal with him. “The GIs were returning after the end of the war, and
                    MIT on October 28.         they were being quartered at the Radford Arsenal, so Mr. Cassell bought all of my
                    He is an assistant pro-    mailboxes for them, and consequently financed my senior year,” Smith recalls. It
fessor of mechanical engineering at Vir-       did help that tuition at Virginia Tech at the time was $40 a quarter.
ginia Tech -- a stone’s throw from ESM --
and received his degrees (M.S.’98 Ph.D’00)     He garnered some experience his senior year teaching mathematics, and that
through the mentoring and advice of ESM        landed him an offer from Dan Pletta, the EM department head, to remain at the
Frank Maher Professor, Demetri Telionis.       university. He pursued his master’s degree and became a full time instructor in 1948.
                                               Upon receiving his graduate degree in 1950, Pletta promoted him to an assistant
                                               professor, and Smith taught five classes at a salary of some $200 a month.

                                                                    Alumni News Continued on Page 18...

16   Happenings Fall 2006
  Alumni Update
   we would like to Hear
        From You!

Fill out the Alumni Information Update
Postcard attached to this newsletter and
send it in the be published in the next
edition of Happenings .

 Class of 1947
 Richard N. Southworth retired from                                                                                  [ View from Norris Hall]
 Aerosape Systems Engineering in 1993.
 He taught part time at Allan Hancock            NDE using ultrasonics. He is married to       Class of 1997
 Community College: statics, dynamics and        wife Tammy and has four children: Kelsy,      Chad Heatwole, MD recently completed
 other engineering technology classes. In        Chip, Loriel, and Ryan; and he also has 1     his year as chief neurology resident at
 2002, Richard retired from teaching at age      dog and 2 cats.                               Strong Memorial Hospital. He has accepted
 79.                                                                                           an NIH fellowship grant for experimental
                                                 Katheryn Saatman had a son, Raymond           therapeutics of neuromuscular disease.
 Class of 1968                                   Matthew, born August 24, 2004. She joined     He lives in Rochester, NY with this wife
 G. Barry Baum has been with Emerson             the Spinal Cord and Brain Injury Research     Joanna and 7-month-old son, John Mark.
 Electric Co. for 21 years. He spent the last    Center at the University of Kentucky as a
 three years as President of their Western       tenure-track Associate Professor in January
                                                 2005.                                         Class of 1998
 Forge Corp., a subsidiary in Colorado                                                         Brant Conaway earned an MBA from
 Springs, Co. Western Forge manufactures                                                       Loyola College in Maryland. He was hired
 hand tools for major retailers and industrial   Class of 1989                                 as a Lead Mechanical Design Engineer,
 customers.                                      Andrew Crickenberger (B.S 1989, M.S.          mananging a group at Northrop-
                                                 1991) works for ATK Advanced Weapons          Grumman, designing automated package
 Class of 1979                                   Division as a manager. He moved to            sorting equipment for the U.S. Postal
 Gary Bishop was recently appointed              Minnesota in 2005 to work in the area of      Service.
 Director of Manufacturing Operations for        force protection. His projects include RPG
 Sumitomo Electric Lightwave, a fiber optic      and mortar defense systems, advanced
                                                 armor, networked munitions, and ship          Class of 2001
 technology company in Research Triangle                                                       Jennifer (Silverman) Hoyt graduated
 Park, North Carolina.                           defense systems. He has two sons turning
                                                 5 and 2 this year.                            from the Medical School at the Medical
                                                                                               College of Virginia in May 2006 and will
 Class of 1983                                   Marty France, Ph.D. was nominated by          begin a residency in Emergency Medicine.
 Harry Shainian works as an aerospace            the President of the United States and the    She was married on July,10, 2004 to
 technical specialist at Northrop-Grumman        Senate confirmed him to be the Permanent      Del Hoyt and they welcomed their first
 in El Segundo, CA. He performs fatigue          Professor and Head of the Department          daughter, Catherine on January 18, 2006.
 and fracture mechanics analysis on the F/       of Astronautics and the US Air Force
 A-18 E/F version. He is actively involved       Academy. He is currently a Colonel in
 in Toastmasters International and serves        the US Air Force. He was “invested: as        Class of 2002
 as a local club officer. He is also active      the Department Head on December 9,            Craig Swift, P.E. works as a design
 in Christian ministry through a church          2005. He was previously assigned to           engineer for Structural Focus of Gardena
 proclaiming the Gospel of Jesus Christ.         Headquarters Air Force Space Command,         California. He is currently living and
                                                 Peterson AFB CO, as the Deputy Director       working in Los Angeles and has been
                                                 of Requirements.                              married for over two years to another
 Class of 1987                                                                                 Hokie. Craig recently earned his PE
 Chuck Martin works as a principal               J.S. Brown, P.E. is the Project Engineer      license as a civil engineer and is enjoying
 engineer for Framatome-ANP. His work            for Olver Incorporated of Blacksburg VA.      the beaches and mountains of California.
 includes steam generator tube integrity         Olver is an Environmental Engineering
 and thermal hydraulics. He also performs        Firm.

                                                                                                   Happenings Fall 2006                17
Staff News
Pat Baker Receives Department Head Award For
Excellence In Performance
Ms. Patricia Baker is this year’s recipient for the Department         band, Joe, and has two sons (Jeff,
Head’s award for extraordinary performance to the ESM depart-          a computer systems engineer for
ment. She serves as the department’s fiscal technician. She is in      Lockheed Martin, and Jason, a parts
charge of processing purchasing paperwork and monitoring all           manager for a Honda dealership).
department accounts.
                                                                       Pat’s thoughts on the department
Department head, Professor Puri speaks of her as “an outstand-         she worked with since 1988: “The
ing team member with a great attitude. It is simply a pleasure to      people in ESM have always been
have people like her on the ESM team.”                                 great to work with. I never would
                                                                       have anticipated staying in this job
Originally from Natchitoches, Louisiana, Pat graduated from
                                                                       as long as I have.”
Northwestern State University. Away from work, her interests lie
in cross-stitching, antiquing, and sewing. Pat lives with her hus-

Meet Anne-Marie Bracken
Ms. Anne-Marie Bracken began her duties as Office Manager              supports education initiatives doing ad-
for ESM on June 12 of this year. Her primary duty is to provide        ministrative work, graphic layouts for the
administrative assistance to the department head, Professor Ish-       department newsletter, as well as program
                                  war Puri. Originally from New        work for the Cultural Competence/Fam-
                                  York, Ms. Bracken has traveled,      ily Engagement Program.
                                  lived, and worked in different
                                                                       Anne-Marie is also an artist working with
                                  states from California to Virgin-
                                                                       various media such as watercolor, pen and
                                  ia. Previous to this new position,
                                                                       ink, photography, pastel, and collage. She
                                  she worked for a family-funded,
                                                                       is currently concentrating on landscape
                                  non-profit foundation (The Ball
                                                                       and abstract painting.
                                  Foundation) in Chicago that
                                                                                                                                Slide Rock Reverie.
                                                                                                                                  Watercolor, 2005.

...Graduate Profile continued                                          NASA’s Langley Research Center Scientific Achievement Award.
                                                                       Other honors followed including election to Fellow of the American
for faster data transfer.
                                                                       Academy of Mechanics in 1991 and of the American Society of
                                                                       Mechanical Engineers in 1996. He became an honorary member of
Upon completion of the requirements for his Ph.D. Mohammed
                                                                       SEM in 2002.
began working with Professor Daniel Inman at the Virginia Tech
Center of Intelligent Materials and Smart Structure (CIMSS),           Smith balanced his act of teaching and research well. In 1991, he
working on transforming ambient vibration energy into electrical       received the statewide Dan Pletta Engineering Educator of the Year
energy using piezoelectric materials. He recently defended his         Award from the Virginia Schools of Engineering. “I always enjoyed
dissertation in July of 2006 and has accepted a position as an as-     teaching very much and got along well with the students,” Smith says.
sistant professor of mechanical engineering at Clemson Univer-         He served as an unofficial advisor to the 15 or 20 ESM seniors, as
sity. He will be joining them in August, 2006.                         Artis alluded to earlier in this story. And he and his wife Doris, now
                                                                       deceased, would also act as chaperones at the college dances.
...Alumni Profile: Bill Smith continued
                                                                       Known fondly as the ESM Department’s “Chaplain,” Smith says he is
Subsequently, Smith became one of the first of the engineering         not “sure where he picked up the nickname, but I guess my ability to see
faculty to transition from a strictly teaching role to assuming a      the humorous side of everything had something to do with it. There
teaching and research responsibility in the college. Smith was one     was also a time when, as the oldest person in the department, I was
of Virginia Tech’s investigators on the 1969 Themis grant, the         recruited to form a committee to help solve technical disagreements
landmark Department of Defense program that catapulted the             between faculty members.”
University into its current international stature in composite and
advanced materials. In 1977 the University recognized Smith for        Smith has a daughter Terry who resides in Harrisonburg, Va., with her
his many achievements, presenting him with its Alumni Award            husband Larry Kelley and their two daughters. His son David lives in
for Excellence in Research. That same year, the Society for            Christiansburg with a daughter and one grandson.
Experimental Mechanics made him a Fellow. In 1986 he received

18   Happenings Fall 2006
ESM 2005                                                                                  Powers, Danelle F.
                                                                                          Privalle, Laura S.

DONORS                                                                                    Puri, Ishwar K.
                                                                                          Redd, William L.
Alharazim, Aminata B.                                                                     Reifsnider, Kenneth L. Ricar-
Anderson, Melvin S.                                                                       do, Raul E.
Ash, Joseph H.                                                                            Robertson, Wanda J.
Ashe, Melissa P.                                                                          Ross, Catherine L.
Asher, Mark S.                                                                            Ryan, Stephen J.
Bakis, Charles E.                                                                         Rynkov, Vladimir
Barredo, Jennifer A.                                                                      Schaeffler, Norman W.
Batra, Gagan                                                                              Smith, Charles W.
Bottomley, Laura J.                                                                       Soloe, Newton R.
Buttram, Jonathan D.                                                                      Stevens, Theodore R.
Camponeschi, Eugene T.                                                                    Sturgis, Brandon S.
Chabalko, Christopher C.                                                                  Tar, Thomas J.
Chapman, Kevin L.          Norris Hall, Courtesy of Michael Wooddell                      Thomas, David T.
Coppola, Vincent T.               Johnson, Sandra L.                   Tietjen, Jill S.
Cord, Edward A.                   Kaiser, John E.                      Trigg, Louis H.
Dashiell, Robert G.               Kennedy, John M.                     Vaillant, Samantha N.
Dranginis, Stanley A.             Knight, Norman F.                    Van Landingham, Mark R.
Elmore, Kevin A.                  Koerber, Lynda L.                    Wagner, Douglas W.
Elswick, Landon L.                Kreider, Marc A.                     Westley, Todd A.
Falgout, Thomas E.                Lesko, John J.                       Wilkerson, Joseph L.
Farish, Paul T.                   Lestingi, Joseph F.                  Winter, Joseph R.
Fletcher-Kelly, Seala L.          Librescu. Liviu                      Young, Clarence P.
Frederick, Daniel                 Linkous, Nancy R.                    _____________________________
Frederick, Frances F.             Livingston, Diane F.                 BASF Corporation
Fripp, Michael L.                 Luoni, John A.                       Catalytic Generators, LLC
Goldsberry, Harold A.             Ma, Nu T.                            Fakespace Systems Inc
Good, Todd A.                     Marcus, Larry A.                     GE Foundation
Gurney, John W.                   Marshall, Larry R.                   Halliburton Foundation, Inc.
Hajj, Muhammad R.                 Massa, Ted R.                        Interwav, Inc.
Harris,Charles E.                 McAllister, William C.               Norfolk Southern Foundation
Hayduk, William J.                McCawley, Thomas Q.                  Performance Associates, Inc. -
Heller, Robert A.                 Moore, Franklin C.                              DBA Pat Artis, Inc.
Holden, John P.                   O’Brien, Thomas K.                   Procter & Gamble Fund,
Hsu, Su-Yuen                      O’Leary, Brian C.                    The Raytheon Company
Iyengar, Nirmal                   Platt, Samuel M.

Johnson, David P.                 Poe, Clarence C.

                                                                             Happenings Fall 2006                   19
The Department of Engineering Science and Mechanics provides a
strong foundation and a sturdy framework for the discovery, develop-
ment, transfer, and implementation of new knowledge in the areas of
mechanics of materials and material systems, fluid mechanics, dynam-
ics and vibration, biomechanics, and computational methods. The de-
partment is fully committed to providing an environment for strong
undergraduate and graduate education that emphasizes fundamental
understanding rather than specialization, high-quality teaching, innova-
tion, frontier-level research, and service to the professional mechanics

           Fluid Mechanics

      Professor Ishwar K. Puri, Ph.D.                           Non Profit Org.
      Department Head                                             U.S. Postage
      Engineering Science and Mechanics                                   PAID
      Virginia Tech                                       Blacksburg, VA 24060
      Blacksburg, VA 24061-0219                                   Permit no. 28

20   Happenings Fall 2006

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