engineering recuitment GATE ME 2023-24 Test Series Strength of Materials Simple Stress and Strain Thermal Stress and Strain
α = 12.5 × 10 -6 / °C, E = 200GPa
If the rod fitted snugly between the supports as shown in the figure, is heated, the stress induced in it due to 20°C rise in temperature will be
1
0.07945 MPa
2
-0.07945 MPa
3
-0.03972 MPa
4
0.03972 MPa