eval_CS_mbf

eval_CS_mbf(d: int, e: Expr, F: MatrixBase, P: MatrixBase)

Evaluate motion based configurational stress tensor.

Parameters:

• d – number of dimensions

• e – energy density

• F – matrix of shape (d, d); deformation gradient

• P – matrix of shape (d, d); First Piola-Kirchhoff stress tensor

Returns:

symbolic matrix of shape (d, d)