Composites - DOC

							                                       Composites
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Composites: 2 + 2 = 10
Airbus crash: How safe are composite materials?
   1. What was the concern when the vertical tail fin was found in Jamaica Bay?
   2. What did the pilots complain about?
   3. What is the NTSB?
   4. What did the NTSB do?
   5. What type of composite are in question?

   Two plus two equals 10
   6. What are the roots of the high tech wonder composites?
   7. What is compressive strength?
   8. What is tensile strength?
   9. What is shear strength?
   10. What would the ideal material do?
   11. In steel reinforced concrete, what function are do the two materials serve?
   12. What is fiberglass?
   13. What are the features of fiberglass?

   The incredible lightness of flying
   14. What is “black aluminum”?
   15. Why is better than regular aluminum?
   16. What airplane features widespread use of carbon-fiber composites?
   17. What advantages does carbon-fiber like that used in the Airbus to advanced composites?
   18. Why are temperature changes an issue for airplanes?
   19. What is another crucial advantage to carbon-fibers?
   20. What are two major drawbacks of composites?

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Designing Composites
A diet high in fiber
21. What do composite materials benefit from?
22. What is the orientation of the fibers?
23. What size are most fibers?
24. What factors are considered in fiber selection?
25. What is an example of a tradeoff when using a composite fiber?
26. What is the strongest material in common use?
27. What is again the negative of carbon-fiber use?
28. What is the positive of carbon-fiber use?
29. Where are they found used because of their lightweight nature?
30. How does the tensile strength compare between carbon-fiber and steel?
31. How much can one square inch of carbon–fiber pull?
Togetherness is bliss
32. What is the goal of composite design and processing?
33. What does a matrix do?
34. What does the design do?
35. What happens during processing?

Fiber fault-finding
36.How is an ultrasound used?

A tale of a tail fin
37. By making the fin stronger when repairing it, what actually happened?
38. Why are composites tough to repair?

Whole lotta composite in the air
39.What is a drawback to using composites in planes?

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Carbon loadin
The lightest bike
40. How much do some of the lightest carbon-fiber bikes weigh?
41. What are some other materials the TREK using in the manufacturing of their bikes?
42. What does the lug making design consist of?
43. What does the lug making process consist of?
44. How are lugs and the tubes connected?
45. Where are lugs and tubes assembled?
46. What happens after the bike is cured?
47. What is a feature of a carbon-fiber frame?

Torture chamber
48. What does the torture testing at the TREK factory detect?
49. What can product testing protect against?

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Bridges: Look mom, no rust
In a composites bridge, rust can finally sleep
50. Other than airplanes and bicycles, where else are carbon-fibers showing up?
51. What is the major use of composites in construction?
52.What is the key advantage to its use?
53.What is the biggest problem associated with roads, bridges and highways?
54.What type of fibers can be used in place of carbon in bridges to keep the cost down?
55.What is pultrusion?

Rust goes to sleep
56.What is one benefit of composites?
57. What still remains controversial tradeoff concerning the use of composites?