Question

A bar of cross-section A and length L is subjected to an axial load W. the strain energy stored in the bar would be __________

a.

WL / AE

b.

W²L / 4AE

c.

W²L / 2AE

d.

WL / 4AE

Answer: (c).W²L / 2AE

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Q. A bar of cross-section A and length L is subjected to an axial load W. the strain energy stored in the bar would be __________

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