Line data    Source code

       1              : // Copyright 2024, UChicago Argonne, LLC
       2              : // All Rights Reserved
       3              : // Software Name: NEML2 -- the New Engineering material Model Library, version 2
       4              : // By: Argonne National Laboratory
       5              : // OPEN SOURCE LICENSE (MIT)
       6              : //
       7              : // Permission is hereby granted, free of charge, to any person obtaining a copy
       8              : // of this software and associated documentation files (the "Software"), to deal
       9              : // in the Software without restriction, including without limitation the rights
      10              : // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
      11              : // copies of the Software, and to permit persons to whom the Software is
      12              : // furnished to do so, subject to the following conditions:
      13              : //
      14              : // The above copyright notice and this permission notice shall be included in
      15              : // all copies or substantial portions of the Software.
      16              : //
      17              : // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
      18              : // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
      19              : // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
      20              : // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
      21              : // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
      22              : // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
      23              : // THE SOFTWARE.
      24              : 
      25              : #include "neml2/models/solid_mechanics/IsotropicMandelStress.h"
      26              : #include "neml2/tensors/SR2.h"
      27              : #include "neml2/tensors/SSR4.h"
      28              : 
      29              : namespace neml2
      30              : {
      31              : register_NEML2_object(IsotropicMandelStress);
      32              : 
      33              : OptionSet
      34            2 : IsotropicMandelStress::expected_options()
      35              : {
      36            2 :   OptionSet options = MandelStress::expected_options();
      37            2 :   options.doc() += " For isotropic material under small deformation, the Mandel stress and the "
      38            2 :                    "Cauchy stress coincide.";
      39              : 
      40            2 :   return options;
      41            0 : }
      42              : 
      43              : void
      44            8 : IsotropicMandelStress::set_value(bool out, bool dout_din, bool d2out_din2)
      45              : {
      46              :   // Isotropic mandel stress is just the Cauchy stress
      47              : 
      48            8 :   if (out)
      49            7 :     _M = SR2(_S);
      50              : 
      51            8 :   if (dout_din)
      52            4 :     if (_S.is_dependent())
      53            4 :       _M.d(_S) = SR2::identity_map(_S.options());
      54              : 
      55              :   if (d2out_din2)
      56              :   {
      57              :     // zero
      58              :   }
      59            8 : }
      60              : } // namespace neml2