Question

In fatigue failure, the behaviour of material under cyclic load generally differs from that under monotonic load.

(a) True

(b) False

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This interesting question is from Metallurgical Aspects topic in chapter Mechanical Working of Metals of Casting-Forming-Welding II

Answer 1

Correct answer is (a) True

To explain: The study of behaviour of material in its fatigue failure is very important to understand for the design and manufacturing purpose. The behaviour of material under cyclic load generally differs from that under monotonic load. Fatigue in the form of initiation of a defect is followed by its growth till the operating load is reached to rupture condition.