GATE Mechanical Engineering (ME) 2014 Shift 1 Solved Paper

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Question : 16 of 65

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A circular rod of length ‘L’ and area of cross-section ‘A’ has a modulus of elasticity ‘E’ and coefficient of thermal expansion ‘α’. One end of the rod is fixed and other end is free. If the temperature of the rod is increased by ΔT, then

Stress developed in the rod is $Eα ∆ T$ and strain developed in the rod is $α ∆ T$
Both stress and strain developed in the rod are zero
Stress developed in the rod is zero and strain developed in the rod is $α ∆ T$
Stress developed in the rod is $Eα ∆ T$ and strain developed in the rod is zero

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