

MCQOPTIONS
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1. |
The Coffin-Manson relation is described as ________________where Δεp = the plastic strain amplitudeε’f = fatigue ductility coefficient2N = number of strain reversal to failurec = fatigue ductility exponent |
A. | Δεp/2=ε’f (2N)c |
B. | Δεp=ε’f (2N)c |
C. | Δεp/2=ε’f (N)c |
D. | Δεp=ε’f (N)c |
Answer» B. Δεp=ε’f (2N)c | |