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/R2toWR2.h"
      26              : #include "neml2/tensors/mandel_notation.h"
      27              : #include "neml2/tensors/R2.h"
      28              : #include "neml2/tensors/WR2.h"
      29              : 
      30              : namespace neml2
      31              : {
      32              : register_NEML2_object(R2toWR2);
      33              : 
      34              : OptionSet
      35            2 : R2toWR2::expected_options()
      36              : {
      37            2 :   OptionSet options = Model::expected_options();
      38            2 :   options.doc() = "Extract the skew symmetric part of a R2 tensor";
      39              : 
      40            4 :   options.set<bool>("define_second_derivatives") = true;
      41              : 
      42            4 :   options.set_input("input");
      43            4 :   options.set("input").doc() = "Rank two tensor to split";
      44              : 
      45            4 :   options.set_output("output");
      46            2 :   options.set("output").doc() = "Output skew symmetric rank two tensor";
      47              : 
      48            2 :   return options;
      49            0 : }
      50              : 
      51            1 : R2toWR2::R2toWR2(const OptionSet & options)
      52              :   : Model(options),
      53            1 :     _input(declare_input_variable<R2>("input")),
      54            2 :     _output(declare_output_variable<WR2>("output"))
      55              : {
      56            1 : }
      57              : 
      58              : void
      59            3 : R2toWR2::set_value(bool out, bool dout_din, bool d2out_din2)
      60              : {
      61            3 :   auto A = R2(_input);
      62              : 
      63            3 :   if (out)
      64            1 :     _output = WR2(A);
      65              : 
      66            3 :   if (dout_din)
      67              :   {
      68            1 :     _output.d(_input) = 0.5 * skew_to_full(R2::identity(A.options()), 1);
      69              :   }
      70              : 
      71              :   // Second derivative is zero
      72              :   (void)d2out_din2;
      73            3 : }
      74              : } // namespace neml2