When an elastic material with Young's modulus Y is subjected to stretching stress S, elastic energy stored per unit volume of the material is :

When an elastic material with Young's modulus Y is subjected to stretc

1.	When an elastic material with Young's modulus Y is subjected to stretching stress S, elastic energy stored per unit volume of the material is :
Answer» `(YS)/(2)` `(S ^(2)Y)/(2)` `(S ^(2))/(2Y)` `(S)/(2Y)` Solution :Energy stored PER UNIT volume `=1/2 xx ` STRESS `xx` STRAIN `=1/2xx` stress `xx (("stress")/("Young.s modulus"))` `=1//2 xx (("stress") ^(2))/("Young .s modulus") = (S ^(2))/( 2Y)`