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1. |
The most common form to express the flow curve is:σ=KεnHere σ=stress, ε=strain, n=strain hardening exponent, and K is defined as stress when ε = _______ |
A. | 1 |
B. | 0.5 |
C. | 0 |
D. | 0.33 |
Answer» B. 0.5 | |