anisotropic_viscosity.h

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// ------------------------------------------------------
//
// SPDX-License-Identifier: GPL-2.0-or-later
//
// SPDX-FileCopyrightText: Copyright (C) 2025-2026 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_additional_outputs_anisotropic_viscosity_h
#define _aspect_material_model_additional_outputs_anisotropic_viscosity_h


#include <aspect/material_model/interface.h>

namespace aspect
{
  namespace MaterialModel
  {
    template <int dim>
    class AnisotropicViscosity : public NamedAdditionalMaterialOutputs<dim>
    {
      public:
        AnisotropicViscosity(const unsigned int n_points);

        std::vector<double>
        get_nth_output(const unsigned int idx) const override;

        std::vector<SymmetricTensor<4,dim>> stress_strain_directors;
    };
  }
}

#endif