SmallDeformationLocalAssemblerMatrix.h

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// SPDX-FileCopyrightText: Copyright (c) OpenGeoSys Community (opengeosys.org)
// SPDX-License-Identifier: BSD-3-Clause
 
#pragma once
 
#include <optional>
#include <vector>
 
#include "IntegrationPointDataMatrix.h"
#include "NumLib/Fem/InitShapeMatrices.h"
#include "NumLib/Fem/Integration/GenericIntegrationMethod.h"
#include "NumLib/Fem/ShapeMatrixPolicy.h"
#include "ProcessLib/Deformation/BMatrixPolicy.h"
#include "ProcessLib/Deformation/LinearBMatrix.h"
#include "ProcessLib/LIE/SmallDeformation/SmallDeformationProcessData.h"
#include "SecondaryData.h"
#include "SmallDeformationLocalAssemblerInterface.h"
 
namespace ProcessLib
{
namespace LIE
{
namespace SmallDeformation
{
namespace MPL = MaterialPropertyLib;
 
template <typename ShapeFunction, int DisplacementDim>
class SmallDeformationLocalAssemblerMatrix
    : public SmallDeformationLocalAssemblerInterface
{
public:
    using ShapeMatricesType =
        ShapeMatrixPolicyType<ShapeFunction, DisplacementDim>;
    using NodalMatrixType = typename ShapeMatricesType::NodalMatrixType;
    using NodalVectorType = typename ShapeMatricesType::NodalVectorType;
    using ShapeMatrices = typename ShapeMatricesType::ShapeMatrices;
    using BMatricesType = BMatrixPolicyType<ShapeFunction, DisplacementDim>;
    using BBarMatrixType = typename BMatricesType::BBarMatrixType;
 
    using StiffnessMatrixType = typename BMatricesType::StiffnessMatrixType;
    using NodalForceVectorType = typename BMatricesType::NodalForceVectorType;
    using NodalDisplacementVectorType =
        typename BMatricesType::NodalForceVectorType;
 
    SmallDeformationLocalAssemblerMatrix(
        SmallDeformationLocalAssemblerMatrix const&) = delete;
    SmallDeformationLocalAssemblerMatrix(
        SmallDeformationLocalAssemblerMatrix&&) = delete;
 
    SmallDeformationLocalAssemblerMatrix(
        MeshLib::Element const& e,
        std::size_t const local_matrix_size,
        NumLib::GenericIntegrationMethod const& integration_method,
        bool const is_axially_symmetric,
        SmallDeformationProcessData<DisplacementDim>& process_data);
 
    void assemble(double const /*t*/, double const /*dt*/,
                  std::vector<double> const& /*local_x*/,
                  std::vector<double> const& /*local_x_prev*/,
                  std::vector<double>& /*local_M_data*/,
                  std::vector<double>& /*local_K_data*/,
                  std::vector<double>& /*local_b_data*/) override
    {
        OGS_FATAL(
            "SmallDeformationLocalAssembler: assembly without jacobian is not "
            "implemented.");
    }
 
    void assembleWithJacobian(double const t, double const dt,
                              std::vector<double> const& local_x,
                              std::vector<double> const& /*local_x_prev*/,
                              std::vector<double>& local_b_data,
                              std::vector<double>& local_Jac_data) override;
 
    void preTimestepConcrete(std::vector<double> const& /*local_x*/,
                             double const /*t*/,
                             double const /*delta_t*/) override
    {
        unsigned const n_integration_points =
            _integration_method.getNumberOfPoints();
 
        for (unsigned ip = 0; ip < n_integration_points; ip++)
        {
            _ip_data[ip].pushBackState();
        }
    }
 
    void computeSecondaryVariableConcreteWithVector(
        double const t, Eigen::VectorXd const& local_x) override;
 
    Eigen::Map<const Eigen::RowVectorXd> getShapeMatrix(
        const unsigned integration_point) const override
    {
        auto const& N = _secondary_data.N[integration_point];
 
        // assumes N is stored contiguously in memory
        return Eigen::Map<const Eigen::RowVectorXd>(N.data(), N.size());
    }
 
    std::vector<double> const& getIntPtSigma(
        const double t,
        std::vector<GlobalVector*> const& x,
        std::vector<NumLib::LocalToGlobalIndexMap const*> const& dof_table,
        std::vector<double>& cache) const override;
 
    std::vector<double> const& getIntPtEpsilon(
        const double t,
        std::vector<GlobalVector*> const& x,
        std::vector<NumLib::LocalToGlobalIndexMap const*> const& dof_table,
        std::vector<double>& cache) const override;
 
    std::vector<double> const& getIntPtFractureStress(
        const double /*t*/,
        std::vector<GlobalVector*> const& /*x*/,
        std::vector<NumLib::LocalToGlobalIndexMap const*> const& /*dof_table*/,
        std::vector<double>& cache) const override
    {
        cache.resize(0);
        return cache;
    }
 
    std::vector<double> const& getIntPtFractureAperture(
        const double /*t*/,
        std::vector<GlobalVector*> const& /*x*/,
        std::vector<NumLib::LocalToGlobalIndexMap const*> const& /*dof_table*/,
        std::vector<double>& cache) const override
    {
        cache.resize(0);
        return cache;
    }
 
private:
    SmallDeformationProcessData<DisplacementDim>& _process_data;
 
    using IntegrationPointDataType =
        IntegrationPointDataMatrix<ShapeMatricesType, BMatricesType,
                                   DisplacementDim>;
    std::vector<IntegrationPointDataType,
                Eigen::aligned_allocator<IntegrationPointDataType>>
        _ip_data;
 
    NumLib::GenericIntegrationMethod const& _integration_method;
    MeshLib::Element const& _element;
    bool const _is_axially_symmetric;
    SecondaryData<typename ShapeMatrices::ShapeType> _secondary_data;
 
    std::optional<BBarMatrixType> getDilatationalBBarMatrix() const
    {
        if (!(_process_data.use_b_bar))
        {
            return std::nullopt;
        }
 
        return LinearBMatrix::computeDilatationalBbar<
            DisplacementDim, ShapeFunction::NPOINTS, ShapeFunction,
            BBarMatrixType, ShapeMatricesType, IntegrationPointDataType>(
            _ip_data, this->_element, this->_integration_method,
            this->_is_axially_symmetric);
    }
};
 
}  // namespace SmallDeformation
}  // namespace LIE
}  // namespace ProcessLib
 
#include "SmallDeformationLocalAssemblerMatrix-impl.h"