The strain energy stored in a body when the load is...

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The strain energy stored in a body, when the load is gradually applied, is (where $$\sigma $$ = Stress in the material of the body, V = Volume of the body and E = Modulus of elasticity of the material)

A. $$\frac{{\sigma {\text{E}}}}{{\text{V}}}$$

B. $$\frac{{\sigma {\text{V}}}}{{\text{E}}}$$

C. $$\frac{{{\sigma ^2}{\text{E}}}}{{2{\text{V}}}}$$

D. $$\frac{{{\sigma ^2}{\text{V}}}}{{2{\text{E}}}}$$

Answer: Option D

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