Metallurgical Engineering > GATE 2022 > Strain Hardening
For a material that undergoes strain hardening, necking instability occurs during tensile testing when _______.
Given: σ=true stress and ε=true strain.
A
dσ/dε=0
B
dσ/dε=ε
C
dσ/dε=σ
D
dσ/dε=∞

Correct : c

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Related Topics

strain hardening instability necking instability tensile testing GATE Metallurgical Engineering 2022 metallurgical engineering gate true stress strain dσdε instability metallurgy gate stress strain relationship

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