1. Composites
Fibers - variables
amount
fiber length
distribution
orientation

2. Composites

3. Composites
Fibers - variables
amount
fiber length
distribution
orientation
Fiber orientation can be
random
aligned
intermediate

4. Composites

5. Materials selection - some considerations
Economics
Environmental
Political
Market
Aesthetics
Material properties

6. Materials selection - material cost
Relative cost - compared to that of hot rolled ASTM A36 plate (0.29C-1Mn-0.28Si)
(unit wt. basis)

7. Materials selection - environmental
Health hazards
Recycling
Metals particularly suited to recycling - can be easily sorted, remelted, & shaped
Ceramics usually not recycled - many polymers are
Composites difficult to recycle - difficult to separate fibers from matrix

8. Materials selection - political
Who writes the specs for contract bids?
Will they specify stainless steel rebar in roads & bridges?

9. Materials selection - market
Carrera GT vs ……
Kia
vs ……

10. Materials selection - aesthetics

11. Materials selection - properties

12. Materials selection - properties

13. Materials selection - properties

14. Materials selection - aesthetics
P=50
500 MPa

15. Materials selection - aesthetics
500 MPa