q3f04 - 4. Match the following (a) true...

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Quiz 3 1. Dislocations are responsible for plastic deformation because their presence a. increases CRSS b. reduces CRSS c. does not change CRSS ( B) 2. Body centered cubic metals are stronger than fcc or cph metals because a. presence of very few slip systems does not allow the crystal to deform b. large number of slip systems make the crystal brittle c. CRSS is higher ( C) 3. Engineers use the engineering stress-strain curve because their design uses an applied stress a. below the yield stress b. below the UTS c. below fracture (A )
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Unformatted text preview: 4. Match the following (a) true stress>engineering stress tension (A ) (b) true stress<engineering stress compression ( B) 5. Maximum in the engineering stress-strain curve is a result of a. area of cross-section decreasing more rapidly than the applied load b. area of cross-section increasing more rapidly than the applied load c. area of cross-section decreasing at the same rate as the applied load( A) Bonus 6. Name one incident that you know was caused by the failure of a material and write how it could have been avoided....
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This note was uploaded on 10/11/2009 for the course MSE 200 taught by Professor Wholedepartment during the Spring '08 term at N.C. State.

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q3f04 - 4. Match the following (a) true...

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