Strain energy per unit volume is given by

A matallic wire is stretched by suspending weight to it. If alpha is the longitudinal strain and Y its Young's modulus of elasticity, shown that the elastic potential energy per unit volume is given by Y alpha^(2)//2

A metallic wire is stretched by suspending a weight of it. If alpha^(2) is the longitudinal strain and Y is its Young's modulus of elasticity, then slow that the elastic potential energy per unit volume is given by 1//2Y^(2) .

A metallic wire is stretched by suspending a weight of it. If alpha is the longitudinal strain and Y is its Young's modulus of elasticity, then slow that the elastic potential energy per unit volume is given by 1/2Yalpha^(2) .

A metallic wire is stretched by suspending weight from it if alpha is the longitudinal strain & y is the young's modulus, show that elastic potential energy per unit volume is given by (1)/(2)yalpha^(2) .

Attempt any THREE : Derive an expression for strain energy. Hence show that strain energy per unit volume is directly proportional to the square of the stress.

The strain energy per unit volume is 6.25 xx lO^-4 J/m^3 .The young’s Modulus of the wire is 2 xx 10^10 N//m^2 . Calculate strain.