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The Coffin-Manson relation is described as ________________ where Δεp = the plastic strain amplitude ε’f = fatigue ductility coefficient 2N = number of strain reversal to failure c = fatigue ductility exponent

The Coffin-Manson relation is described as ________________ where Δεp = the plastic strain amplitude ε’f = fatigue ductility coefficient 2N = number of strain reversal to failure c = fatigue ductility exponent Correct Answer Δεp/2=ε’f (2N)c

This relation defines the low cycle fatigue of material. It states the relationship between the strain amplitude to the life of the component before failure.

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