compute_F_for_CPE4R

compute_F_for_CPE4R(X_at_nodes, U_at_nodes)[source]

Compute the deformation gradients for num_elem elements of typ CPE4R. Each element has n=4 nodes and ips=1 integration points.

Parameters:

  • X_at_nodes – Array of shape (num_elem, n, 2) containing the coordinates at n nodes of num_elem elements.

  • U_at_nodes – Array of shape (num_elem, n, 2) containing the displacements at n nodes of num_elem elements.

Returns:

F_at_int_points: Array of shape (num_elem, ips, 2, 2) containing the deformation gradients evaluated on ips integration points for num_elem element.