GATE Exam Questions - Civil Engineering Questions and Answers

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A mild steel specimen is under uni-axial tensile stress. Young's modulus and yield stress for mild steel are 2 x 10⁵ MPa and 250 MPa respectively. The maximum amount of strain energy per unit volume that can be stored in this speciment without permanent set, is

156 Nmm/mm³

15.6 Nmm/mm³

1.56 Nmm/mm³

0.156 Nmm/mm³

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