GATE MT 2014 Q.41 A rod of a metal with Young’s modulus of 200 GPa is pulled in tension to a stress of 400 MPa. What is the elastic strain (in %) that is recovered, when the rod is completely unloaded?
GATE MT 2014 Q.41 A rod of a metal with Young’s modulus of 200 GPa is pulled in tension to a stress of 400 MPa. What is the elastic strain (in %) that is recovered, when the rod is completely unloaded?
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Correct answer is 0.2 Given that, E=200 GPa and σ= 400 MPa Elastic strain (in %)= (σ/E) = (400/200×103)×100 = 0.2 %
Correct answer is 0.2
Given that, E=200 GPa and σ= 400 MPa
Elastic strain (in %)= (σ/E) = (400/200×103)×100 = 0.2 %
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