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Stress-strain diagram for tensile Loading - I

A test specim...

Question

A test specimen is stressed slightly beyond the yield point and then unloaded. Its yield strength

A

Decreases

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B

Increases

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C

remains same

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D

become equal to UTS

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Solution

The correct option is B Increases
Due to the strain hardening phenomenon, yield strength will increase after loading a material slightly beyond the yield point.

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