Question

What will be the energy stored per unit volume in a strained wire?

Answer 1

U=1/2 ×stress×strain ×volume..............for wire

U=1/2 ×stress×strain ×volume..............for wireu=U/V =1/2×stress×strain

U/V=1/2× Y×(strain)²

U/V=1/2×(stress)²/Y........... energy stored per unit volume