

GATE Exam Questions - Engineering
Q1: 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, isA
156 Nmm/mm3
B
15.6 Nmm/mm3
C
1.56 Nmm/mm3
D
0.156 Nmm/mm3
ANS:D - 0.156 Nmm/mm3 P^2/ 2E = (250^2)/(2*2*10^5) = 0.156. |


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