engineering recuitment GATE ME 2023-24 Test Series Strength of Materials Simple Stress and Strain Thermal Stress and Strain
A cube of Brass material having dimension 0.12 m × 0.12 m × 0.12 m rest against a rigid wall (with normal in the Y direction), as shown in the figure below. Another rigid wall is located at the clearance of 0.2 mm from the block. Assuming all contacts to be frictionless, if the block is heated by ΔT = 250°C, the thermal stress, σyy induced in the block will be___ MPa up to the nearest integer value.
(Assume for Brass E = 97 GPa, μ = 0.33, α = 19 × 10-6 /°C; take the compressive stress as negative and tensile stress as positive)
Enter numerical value using the virtual keypad. Round off where necessary.