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
Options
A. 156 Nmm/mm3
B. 15.6 Nmm/mm3
C. 1.56 Nmm/mm3
D. 0.156 Nmm/mm3
Correct Answer
0.156 Nmm/mm3
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