The constraint condition for the strain energy density function of incompressible hyperelasticity is proposed.
通过对各种有限元方法的分析比较,适当修改了已有的应变能密度函数的形式使之更适合数值计算。
英语百科
Strain energy density function
A strain energy density function or stored energy density function is a scalar valued function that relates the strain energy density of a material to the deformation gradient.
Equivalently,
where is the (two-point) deformation gradient tensor, is the right Cauchy-Green deformation tensor, is the left Cauchy-Green deformation tensor,
and is the rotation tensor from the polar decomposition of .