diffusion_dislocation.h

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/*
  Copyright (C) 2011 - 2022 by the authors of the ASPECT code.

  This file is part of ASPECT.

  ASPECT is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2, or (at your option)
  any later version.

  ASPECT is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with ASPECT; see the file LICENSE.  If not see
  <http://www.gnu.org/licenses/>.
*/

#ifndef _aspect_material_model_diffusion_dislocation_h
#define _aspect_material_model_diffusion_dislocation_h

#include <aspect/material_model/interface.h>
#include <aspect/simulator_access.h>
#include <aspect/material_model/rheology/diffusion_creep.h>
#include <aspect/material_model/rheology/dislocation_creep.h>

namespace aspect
{
  namespace MaterialModel
  {
    using namespace dealii;

    template <int dim>
    class DiffusionDislocation : public MaterialModel::Interface<dim>, public ::aspect::SimulatorAccess<dim>
    {
      public:

        void evaluate(const MaterialModel::MaterialModelInputs<dim> &in,
                      MaterialModel::MaterialModelOutputs<dim> &out) const override;

        bool is_compressible () const override;

        static
        void
        declare_parameters (ParameterHandler &prm);

        void
        parse_parameters (ParameterHandler &prm) override;

      private:
        Rheology::DiffusionCreep<dim> diffusion_creep;
        Rheology::DislocationCreep<dim> dislocation_creep;

        double reference_T;

        double min_strain_rate;
        double minimum_viscosity;
        double maximum_viscosity;
        double veff_coefficient;

        double log_strain_rate_residual_threshold;
        unsigned int stress_max_iteration_number;

        double thermal_diffusivity;
        double heat_capacity;
        double grain_size;

        std::vector<double> densities;
        std::vector<double> thermal_expansivities;

        MaterialUtilities::CompositionalAveragingOperation viscosity_averaging;

        std::vector<double>
        calculate_isostrain_viscosities ( const std::vector<double> &volume_fractions,
                                          const double &pressure,
                                          const double &temperature,
                                          const SymmetricTensor<2,dim> &strain_rate) const;

    };

  }
}

#endif