RichardsMechanics/IntegrationPointData.h

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// SPDX-FileCopyrightText: Copyright (c) OpenGeoSys Community (opengeosys.org)
// SPDX-License-Identifier: BSD-3-Clause
 
#pragma once
 
#include <memory>
 
#include "ConstitutiveRelations/Base.h"
#include "MaterialLib/SolidModels/MechanicsBase.h"
#include "MathLib/KelvinVector.h"
#include "ProcessLib/ConstitutiveRelations/EffectiveStressData.h"
#include "ProcessLib/ConstitutiveRelations/MechanicalStrainData.h"
 
namespace ProcessLib
{
namespace RichardsMechanics
{
template <typename BMatricesType, typename ShapeMatrixTypeDisplacement,
          typename ShapeMatricesTypePressure, int DisplacementDim, int NPoints>
struct IntegrationPointData final
{
    typename ShapeMatrixTypeDisplacement::NodalRowVectorType N_u;
    typename ShapeMatrixTypeDisplacement::GlobalDimNodalMatrixType dNdx_u;
 
    typename ShapeMatricesTypePressure::NodalRowVectorType N_p;
    typename ShapeMatricesTypePressure::GlobalDimNodalMatrixType dNdx_p;
 
    double integration_weight = std::numeric_limits<double>::quiet_NaN();
 
    MathLib::KelvinVector::
        KelvinMatrixType<DisplacementDim> static computeElasticTangentStiffness(
            MaterialPropertyLib::VariableArray const& variable_array,
            double const t,
            ParameterLib::SpatialPosition const& x_position,
            double const dt,
            MaterialLib::Solids::MechanicsBase<DisplacementDim> const&
                solid_material,
            typename MaterialLib::Solids::MechanicsBase<DisplacementDim>::
                MaterialStateVariables const& material_state_variables)
    {
        namespace MPL = MaterialPropertyLib;
 
        MPL::VariableArray variable_array_prev = variable_array;
 
        auto&& solution = solid_material.integrateStress(
            variable_array_prev, variable_array, t, x_position, dt,
            material_state_variables);
 
        if (!solution)
        {
            OGS_FATAL("Computation of elastic tangent stiffness failed.");
        }
 
        MathLib::KelvinVector::KelvinMatrixType<DisplacementDim> C =
            std::move(std::get<2>(*solution));
 
        return C;
    }
 
    static typename BMatricesType::KelvinMatrixType updateConstitutiveRelation(
        MaterialPropertyLib::VariableArray const& variable_array,
        double const t,
        ParameterLib::SpatialPosition const& x_position,
        double const dt,
        double const temperature,
        ProcessLib::ConstitutiveRelations::EffectiveStressData<DisplacementDim>&
            sigma_eff,
        PrevState<ProcessLib::ConstitutiveRelations::EffectiveStressData<
            DisplacementDim>> const& sigma_eff_prev,
        ProcessLib::ConstitutiveRelations::MechanicalStrainData<
            DisplacementDim> const&
        /*eps_m*/,
        PrevState<ProcessLib::ConstitutiveRelations::MechanicalStrainData<
            DisplacementDim>> const& eps_m_prev,
        MaterialLib::Solids::MechanicsBase<DisplacementDim> const&
            solid_material,
        std::unique_ptr<typename MaterialLib::Solids::MechanicsBase<
            DisplacementDim>::MaterialStateVariables>& material_state_variables)
    {
        MaterialPropertyLib::VariableArray variable_array_prev;
        variable_array_prev.stress = sigma_eff_prev->sigma_eff;
        variable_array_prev.mechanical_strain
            .emplace<MathLib::KelvinVector::KelvinVectorType<DisplacementDim>>(
                eps_m_prev->eps_m);
        variable_array_prev.temperature = temperature;
 
        auto&& solution = solid_material.integrateStress(
            variable_array_prev, variable_array, t, x_position, dt,
            *material_state_variables);
 
        if (!solution)
        {
            OGS_FATAL("Computation of local constitutive relation failed.");
        }
 
        MathLib::KelvinVector::KelvinMatrixType<DisplacementDim> C;
        std::tie(sigma_eff.sigma_eff, material_state_variables, C) =
            std::move(*solution);
 
        return C;
    }
 
    EIGEN_MAKE_ALIGNED_OPERATOR_NEW;
};
 
}  // namespace RichardsMechanics
}  // namespace ProcessLib