Line data    Source code

       1             : //* This file is part of the MOOSE framework
       2             : //* https://www.mooseframework.org
       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 "ADCompute2DSmallStrain.h"
      11             : 
      12             : #include "libmesh/quadrature.h"
      13             : 
      14             : InputParameters
      15         108 : ADCompute2DSmallStrain::validParams()
      16             : {
      17         108 :   InputParameters params = ADComputeSmallStrain::validParams();
      18         108 :   params.addClassDescription("Compute a small strain in a plane strain configuration.");
      19         216 :   MooseEnum outOfPlaneDirection("x y z", "z");
      20         216 :   params.addParam<MooseEnum>(
      21             :       "out_of_plane_direction", outOfPlaneDirection, "The direction of the out-of-plane strain.");
      22         108 :   return params;
      23         108 : }
      24             : 
      25          81 : ADCompute2DSmallStrain::ADCompute2DSmallStrain(const InputParameters & parameters)
      26             :   : ADComputeSmallStrain(parameters),
      27         162 :     _out_of_plane_direction(getParam<MooseEnum>("out_of_plane_direction"))
      28             : {
      29          81 : }
      30             : 
      31             : void
      32          81 : ADCompute2DSmallStrain::initialSetup()
      33             : {
      34          81 :   displacementIntegrityCheck();
      35         324 :   for (unsigned int i = 0; i < 3; ++i)
      36             :   {
      37         243 :     if (_out_of_plane_direction == i)
      38             :     {
      39          81 :       _disp[i] = &_ad_zero;
      40          81 :       _grad_disp[i] = &_ad_grad_zero;
      41             :     }
      42             :     else
      43             :     {
      44         162 :       _disp[i] = &adCoupledValue("displacements", i);
      45         162 :       _grad_disp[i] = &adCoupledGradient("displacements", i);
      46             :     }
      47             :   }
      48          81 : }
      49             : 
      50             : void
      51       50280 : ADCompute2DSmallStrain::computeProperties()
      52             : {
      53       50280 :   const auto o0 = _out_of_plane_direction;
      54       50280 :   const auto o1 = (_out_of_plane_direction + 1) % 3;
      55       50280 :   const auto o2 = (_out_of_plane_direction + 2) % 3;
      56             : 
      57       50280 :   ADReal volumetric_strain = 0.0;
      58      275848 :   for (_qp = 0; _qp < _qrule->n_points(); ++_qp)
      59             :   {
      60      225568 :     _total_strain[_qp](o0, o0) = computeOutOfPlaneStrain();
      61      225568 :     _total_strain[_qp](o1, o1) = (*_grad_disp[o1])[_qp](o1);
      62      225568 :     _total_strain[_qp](o2, o2) = (*_grad_disp[o2])[_qp](o2);
      63      451136 :     _total_strain[_qp](o1, o2) = ((*_grad_disp[o1])[_qp](o2) + (*_grad_disp[o2])[_qp](o1)) / 2.0;
      64      225568 :     _total_strain[_qp](o2, o1) = _total_strain[_qp](o1, o2); // force the symmetrical strain tensor
      65             : 
      66      225568 :     if (_volumetric_locking_correction)
      67           0 :       volumetric_strain += _total_strain[_qp].trace() * _JxW[_qp] * _coord[_qp];
      68             :   }
      69             : 
      70       50280 :   if (_volumetric_locking_correction)
      71           0 :     volumetric_strain /= _current_elem_volume;
      72             : 
      73      275848 :   for (_qp = 0; _qp < _qrule->n_points(); ++_qp)
      74             :   {
      75      225568 :     if (_volumetric_locking_correction)
      76             :     {
      77           0 :       const ADReal correction = (volumetric_strain - _total_strain[_qp].trace()) / 3.0;
      78           0 :       _total_strain[_qp](0, 0) += correction;
      79           0 :       _total_strain[_qp](1, 1) += correction;
      80           0 :       _total_strain[_qp](2, 2) += correction;
      81             :     }
      82             : 
      83      225568 :     _mechanical_strain[_qp] = _total_strain[_qp];
      84             : 
      85             :     // Remove the eigenstrains
      86      226528 :     for (const auto es : _eigenstrains)
      87         960 :       _mechanical_strain[_qp] -= (*es)[_qp];
      88             :   }
      89       50280 : }
      90             : 
      91             : void
      92          81 : ADCompute2DSmallStrain::displacementIntegrityCheck()
      93             : {
      94          81 :   if (_out_of_plane_direction != 2 && _ndisp != 3)
      95           0 :     mooseError("For 2D simulations where the out-of-plane direction is x or y the number of "
      96             :                "supplied displacements must be three.");
      97          81 :   else if (_out_of_plane_direction == 2 && _ndisp != 2)
      98           0 :     mooseError("For 2D simulations where the out-of-plane direction is z the number of supplied "
      99             :                "displacements must be two.");
     100          81 : }