compute_CF_for_C3D20R_using_dbf

compute_CF_for_C3D20R_using_dbf(e_at_int_points, X_at_nodes, U_at_nodes, S_at_int_points)[source]

Compute the configurational forces for num_elem elements of typ C3D20R. Each element has n=20 nodes and ips=8 integration points.

Parameters:

  • e_at_int_points – Array of shape (num_elem, ips) containing the Helmholtz free energy densities of num_elem elements.

  • X_at_nodes – Array of shape (num_elem, n, 3) containing the coordinates at n nodes of num_elem elements.

  • U_at_nodes – Array of shape (num_elem, n, 3) containing the displacements at n nodes of num_elem elements.

  • S_at_int_points – Array of shape (num_elem, ips, 3, 3) containing the symmetric stress tensors at ips integration points for num_elem elements.

Returns:

CF_at_nodes: Array of shape (num_elem, n, 3) containing the configurational forces evaluated on n nodes for num_elem element.