Line data    Source code

       1             : //* This file is part of the MOOSE framework
       2             : //* https://mooseframework.inl.gov
       3             : //*
       4             : //* All rights reserved, see COPYRIGHT for full restrictions
       5             : //* https://github.com/idaholab/moose/blob/master/COPYRIGHT
       6             : //*
       7             : //* Licensed under LGPL 2.1, please see LICENSE for details
       8             : //* https://www.gnu.org/licenses/lgpl-2.1.html
       9             : 
      10             : #include "TotalLagrangianWeakPlaneStress.h"
      11             : 
      12             : registerMooseObject("SolidMechanicsApp", TotalLagrangianWeakPlaneStress);
      13             : 
      14             : InputParameters
      15          32 : TotalLagrangianWeakPlaneStress::validParams()
      16             : {
      17          32 :   InputParameters params = TotalLagrangianStressDivergence::validParams();
      18          32 :   params.addClassDescription("Plane stress kernel to provide out-of-plane strain contribution.");
      19          32 :   params.set<unsigned int>("component") = 0;
      20          32 :   params.suppressParameter<unsigned int>("component");
      21          32 :   params.suppressParameter<std::vector<VariableName>>("temperature");
      22          32 :   params.suppressParameter<std::vector<MaterialPropertyName>>("eigenstrain_names");
      23          32 :   params.suppressParameter<std::vector<VariableName>>("out_of_plane_strain");
      24          32 :   return params;
      25           0 : }
      26             : 
      27          16 : TotalLagrangianWeakPlaneStress::TotalLagrangianWeakPlaneStress(const InputParameters & parameters)
      28          16 :   : TotalLagrangianStressDivergence(parameters)
      29             : {
      30          16 : }
      31             : 
      32             : Real
      33      313312 : TotalLagrangianWeakPlaneStress::computeQpResidual()
      34             : {
      35      313312 :   return _test[_i][_qp] * _pk1[_qp](2, 2);
      36             : }
      37             : 
      38             : Real
      39       42944 : TotalLagrangianWeakPlaneStress::computeQpJacobian()
      40             : {
      41             :   // Diagonal Jacobian: d(R_zz)/d(strain_zz_j) = test * d(PK1_{2,2})/d(strain_zz_j).
      42             :   // strain_zz feeds `_F[(2,2)]` AFTER F-bar runs, so strain_zz perturbations bypass
      43             :   // F-bar's chain. Use `_dpk1_bypass_fbar` (pk1_jacobian with the F-bar
      44             :   // `_d_F_stab_d_F_ust` factor REPLACED by identity in the sigma chain) for consistency.
      45       42944 :   return _test[_i][_qp] * _dpk1_bypass_fbar[_qp](2, 2, 2, 2) * _phi[_j][_qp];
      46             : }
      47             : 
      48             : Real
      49       85888 : TotalLagrangianWeakPlaneStress::computeQpOffDiagJacobian(unsigned int jvar)
      50             : {
      51      128832 :   for (auto beta : make_range(_ndisp))
      52      128832 :     if (jvar == _disp_nums[beta])
      53             :     {
      54             :       // Local PK1_{2,2} Jacobian via _dpk1 (includes local F-bar through the sigma chain).
      55             :       // Displacement perturbations DO go through F-bar's chain, so use the regular
      56             :       // `_dpk1` (= pk1_jacobian WITH the F-bar local correction).
      57       85888 :       Real J = _test[_i][_qp] * _dpk1[_qp].contractionIj(2, 2, gradTrial(beta));
      58             : 
      59             :       // Non-local F-bar contribution to PK1_{2,2}; helper handles the sigma-via-dL chain and
      60             :       // the wrap branch. Guarded on `_stabilize_strain` because `_avg_grad_trial` is only
      61             :       // populated when F-bar is on.
      62       85888 :       if (_stabilize_strain)
      63             :       {
      64       44928 :         const RankTwoTensor delta_F_avg = _d_F_d_grad_u[_qp] * _avg_grad_trial[beta][_j];
      65       44928 :         J += _test[_i][_qp] * deltaPK1NonLocalFBar(delta_F_avg)(2, 2);
      66             :       }
      67             :       return J;
      68             :     }
      69             : 
      70             :   return 0;
      71             : }