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/LinearKinematicHardening.h"
      26              : #include "neml2/tensors/Scalar.h"
      27              : #include "neml2/tensors/SR2.h"
      28              : #include "neml2/tensors/SSR4.h"
      29              : 
      30              : namespace neml2
      31              : {
      32              : register_NEML2_object(LinearKinematicHardening);
      33              : 
      34              : OptionSet
      35            2 : LinearKinematicHardening::expected_options()
      36              : {
      37            2 :   OptionSet options = KinematicHardening::expected_options();
      38            2 :   options.doc() += " following a linear relationship, i.e., \\f$ \\boldsymbol{X} = H "
      39            2 :                    "\\boldsymbol{K}_p \\f$ where \\f$ H \\f$ is the hardening modulus.";
      40              : 
      41            4 :   options.set<bool>("define_second_derivatives") = true;
      42              : 
      43            4 :   options.set_parameter<TensorName<Scalar>>("hardening_modulus");
      44            2 :   options.set("hardening_modulus").doc() = "Hardening modulus";
      45              : 
      46            2 :   return options;
      47            0 : }
      48              : 
      49            1 : LinearKinematicHardening::LinearKinematicHardening(const OptionSet & options)
      50              :   : KinematicHardening(options),
      51            4 :     _H(declare_parameter<Scalar>("H", "hardening_modulus"))
      52              : {
      53            1 : }
      54              : 
      55              : void
      56            2 : LinearKinematicHardening::set_value(bool out, bool dout_din, bool d2out_din2)
      57              : {
      58            2 :   if (out)
      59            1 :     _X = _H * _Kp;
      60              : 
      61            2 :   if (dout_din)
      62            1 :     if (_Kp.is_dependent())
      63            1 :       _X.d(_Kp) = _H * SR2::identity_map(_H.options());
      64              : 
      65              :   if (d2out_din2)
      66              :   {
      67              :     // zero
      68              :   }
      69            2 : }
      70              : } // namespace neml2