visco_plastic.h

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// ------------------------------------------------------
//
// SPDX-License-Identifier: GPL-2.0-or-later
//
// SPDX-FileCopyrightText: Copyright (C) 2011-2026 by the ASPECT authors.
//
// This file is part of ASPECT.
//
// Detailed license information governing the source code and
// contributions can be found in the folder LICENSES and in
// LICENSE and CONTRIBUTING.md at the top level directory.
//
// ------------------------------------------------------

#ifndef _aspect_material_model_visco_plastic_h
#define _aspect_material_model_visco_plastic_h

#include <aspect/simulator_access.h>
#include <aspect/material_model/interface.h>
#include <aspect/material_model/equation_of_state/multicomponent_incompressible.h>
#include <aspect/material_model/rheology/visco_plastic.h>

#include<deal.II/fe/component_mask.h>

namespace aspect
{
  namespace MaterialModel
  {
    template <int dim>
    class ViscoPlastic : public MaterialModel::Interface<dim>, public ::aspect::SimulatorAccess<dim>
    {
      public:
        void
        initialize () override;

        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;

        void
        create_additional_named_outputs (MaterialModel::MaterialModelOutputs<dim> &out) const override;

        double get_min_strain_rate() const;

        bool
        is_yielding (const MaterialModelInputs<dim> &in) const;

      private:

        std::unique_ptr<Rheology::ViscoPlastic<dim>> rheology;

        std::vector<double> thermal_diffusivities;

        bool define_conductivities;

        std::vector<double> thermal_conductivities;

        std::vector<unsigned int> n_phase_transitions_for_each_chemical_composition;

        unsigned int n_phases;

        EquationOfState::MulticomponentIncompressible<dim> equation_of_state;

        MaterialUtilities::PhaseFunction<dim> phase_function;

        bool use_dominant_phase_for_viscosity;

        std::unique_ptr<MaterialUtilities::PhaseFunctionDiscrete<dim>> phase_function_discrete;

        std::vector<unsigned int> reaction_progress_mapping;

    };

  }
}

#endif