What kind of elastic materials are derived from a strain energy density function?

A)
Hypo elastic materials
B)
Hyper elastic materials
C)
Cauchy elastic materials
D)
None of the above

Correct Answer :   Hyper elastic materials


Explanation : The hyper elastic materials are derived from a strain energy density function. A model is hyper elastic if and only if it is possible to express the cauchy stress tensor as a function of the deformation gradient.