Strain energy due to sudden axial load is given by : ( σ : Resultant stress, P : Axial load, Δ : Deformation, ε: Strain, E : Modulus of Elasticity)

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Strain energy due to sudden axial load is given by : ( σ : Resultant stress, P : Axial load, Δ : Deformation, ε: Strain, E : Modulus of Elasticity)

a) 1/2 .PΔ

b) σ.ε

c) PΔ   (Ans)

d) σ ^2 / 2E