question_answer

Which of the following is true for elastic potential energy density                                 [RPET 2001]

A) Energy density = \[\frac{1}{2}\times \text{strain}\times \text{stress}\]

B)             Energy density = \[{{\text{(strain)}}^{2}}\times \text{volume}\]

C)             Energy density = (strain)× volume

D)             Energy density = (stress)× volume