In cyclic loading of material, the crack is generally initiated by a sudden or abrupt failure of the material.(a) True(b) FalseThe question was posed to me by my school teacher while I was bunking the class.My question is based upon Metallurgical Aspects topic in section Mechanical Working of Metals of Casting-Forming-Welding II

In cyclic loading of material, the crack is generally initiated by a s

1.	In cyclic loading of material, the crack is generally initiated by a sudden or abrupt failure of the material.(a) True(b) FalseThe question was posed to me by my school teacher while I was bunking the class.My question is based upon Metallurgical Aspects topic in section Mechanical Working of Metals of Casting-Forming-Welding II
Answer» The correct option is (b) False To EXPLAIN: In a work-piece subjected to cyclic loading, a fatigue crack is generally INITIATED on a microscopically small scale which further followed by the GROWTH of crack to a macroscopic size. And in last CYCLE, the material or specimen fails due to fatigue and fracture occurs which defines COMPLETE failure of the work-piece.

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