engineering recuitment BEL Probationary Engineers Mock Test 2025 Strength of Materials Simple Stress and Strain Thermal Stress and Strain
A rod is 2 m long at a temperature of 10°C and the temperature is raised to 80°C. If expansion is prevented, find the stress induced in the material of the rod. Take E = 1.0 × 105 MN/m2 and α = 0.000012 per °C
1
84 N/cm2
2
84 N/mm2
3
96 N/mm2
4
84 MN/mm2