ThermoMechanicalPhaseFieldProcess.cpp

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#include "ThermoMechanicalPhaseFieldProcess.h"
 
#include <cassert>
 
#include "NumLib/DOF/ComputeSparsityPattern.h"
#include "ProcessLib/Process.h"
#include "ProcessLib/SmallDeformation/CreateLocalAssemblers.h"
#include "ThermoMechanicalPhaseFieldFEM.h"
#include "ThermoMechanicalPhaseFieldProcessData.h"
 
namespace ProcessLib
{
namespace ThermoMechanicalPhaseField
{
template <int DisplacementDim>
ThermoMechanicalPhaseFieldProcess<DisplacementDim>::
    ThermoMechanicalPhaseFieldProcess(
        std::string name,
        MeshLib::Mesh& mesh,
        std::unique_ptr<ProcessLib::AbstractJacobianAssembler>&&
            jacobian_assembler,
        std::vector<std::unique_ptr<ParameterLib::ParameterBase>> const&
            parameters,
        unsigned const integration_order,
        std::vector<std::vector<std::reference_wrapper<ProcessVariable>>>&&
            process_variables,
        ThermoMechanicalPhaseFieldProcessData<DisplacementDim>&& process_data,
        SecondaryVariableCollection&& secondary_variables,
        int const mechanics_related_process_id,
        int const phase_field_process_id,
        int const heat_conduction_process_id)
    : Process(std::move(name), mesh, std::move(jacobian_assembler), parameters,
              integration_order, std::move(process_variables),
              std::move(secondary_variables), false),
      _process_data(std::move(process_data)),
      _mechanics_related_process_id(mechanics_related_process_id),
      _phase_field_process_id(phase_field_process_id),
      _heat_conduction_process_id(heat_conduction_process_id)
{
}
 
template <int DisplacementDim>
bool ThermoMechanicalPhaseFieldProcess<DisplacementDim>::isLinear() const
{
    return false;
}
 
template <int DisplacementDim>
MathLib::MatrixSpecifications
ThermoMechanicalPhaseFieldProcess<DisplacementDim>::getMatrixSpecifications(
    const int process_id) const
{
    if (process_id == _mechanics_related_process_id)
    {
        auto const& l = *_local_to_global_index_map;
        return {l.dofSizeWithoutGhosts(), l.dofSizeWithoutGhosts(),
                &l.getGhostIndices(), &this->_sparsity_pattern};
    }
 
    // For staggered scheme and phase field process or heat conduction.
    auto const& l = *_local_to_global_index_map_single_component;
    return {l.dofSizeWithoutGhosts(), l.dofSizeWithoutGhosts(),
            &l.getGhostIndices(), &_sparsity_pattern_with_single_component};
}
 
template <int DisplacementDim>
NumLib::LocalToGlobalIndexMap const&
ThermoMechanicalPhaseFieldProcess<DisplacementDim>::getDOFTable(
    const int process_id) const
{
    if (process_id == _mechanics_related_process_id)
    {
        return *_local_to_global_index_map;
    }
 
    // For the equation of phasefield or heat conduction.
    return *_local_to_global_index_map_single_component;
}
 
template <int DisplacementDim>
NumLib::LocalToGlobalIndexMap&
ThermoMechanicalPhaseFieldProcess<DisplacementDim>::getDOFTableByProcessID(
    const int process_id) const
{
    if (process_id == _mechanics_related_process_id)
    {
        return *_local_to_global_index_map;
    }
 
    // For the equation of phasefield or heat conduction.
    return *_local_to_global_index_map_single_component;
}
 
template <int DisplacementDim>
void ThermoMechanicalPhaseFieldProcess<DisplacementDim>::constructDofTable()
{
    // For displacement equation.
    constructDofTableOfSpecifiedProcessStaggeredScheme(
        _mechanics_related_process_id);
 
    // TODO move the two data members somewhere else.
    // for extrapolation of secondary variables of stress or strain
    std::vector<MeshLib::MeshSubset> all_mesh_subsets_single_component{
        *_mesh_subset_all_nodes};
    _local_to_global_index_map_single_component =
        std::make_unique<NumLib::LocalToGlobalIndexMap>(
            std::move(all_mesh_subsets_single_component),
            // by location order is needed for output
            NumLib::ComponentOrder::BY_LOCATION);
 
    assert(_local_to_global_index_map_single_component);
 
    // For phase field equation or the heat conduction.
    _sparsity_pattern_with_single_component = NumLib::computeSparsityPattern(
        *_local_to_global_index_map_single_component, _mesh);
}
 
template <int DisplacementDim>
void ThermoMechanicalPhaseFieldProcess<DisplacementDim>::
    initializeConcreteProcess(NumLib::LocalToGlobalIndexMap const& dof_table,
                              MeshLib::Mesh const& mesh,
                              unsigned const integration_order)
{
    ProcessLib::SmallDeformation::createLocalAssemblers<
        DisplacementDim, ThermoMechanicalPhaseFieldLocalAssembler>(
        mesh.getElements(), dof_table, _local_assemblers,
        NumLib::IntegrationOrder{integration_order}, mesh.isAxiallySymmetric(),
        _process_data, _mechanics_related_process_id, _phase_field_process_id,
        _heat_conduction_process_id);
 
    _secondary_variables.addSecondaryVariable(
        "sigma",
        makeExtrapolator(
            MathLib::KelvinVector::KelvinVectorType<
                DisplacementDim>::RowsAtCompileTime,
            getExtrapolator(), _local_assemblers,
            &ThermoMechanicalPhaseFieldLocalAssemblerInterface::getIntPtSigma));
 
    _secondary_variables.addSecondaryVariable(
        "epsilon",
        makeExtrapolator(MathLib::KelvinVector::KelvinVectorType<
                             DisplacementDim>::RowsAtCompileTime,
                         getExtrapolator(), _local_assemblers,
                         &ThermoMechanicalPhaseFieldLocalAssemblerInterface::
                             getIntPtEpsilon));
 
    _secondary_variables.addSecondaryVariable(
        "heat_flux",
        makeExtrapolator(mesh.getDimension(), getExtrapolator(),
                         _local_assemblers,
                         &ThermoMechanicalPhaseFieldLocalAssemblerInterface::
                             getIntPtHeatFlux));
 
    // Initialize local assemblers after all variables have been set.
    GlobalExecutor::executeMemberOnDereferenced(
        &LocalAssemblerInterface::initialize, _local_assemblers,
        *_local_to_global_index_map);
}
 
template <int DisplacementDim>
void ThermoMechanicalPhaseFieldProcess<DisplacementDim>::
    initializeBoundaryConditions(
        std::map<int, std::shared_ptr<MaterialPropertyLib::Medium>> const&
            media)
{
    // Staggered scheme:
    // for the equations of temperature-deformation.
    initializeProcessBoundaryConditionsAndSourceTerms(
        getDOFTableByProcessID(_mechanics_related_process_id),
        _mechanics_related_process_id, media);
    // for the phase field
    initializeProcessBoundaryConditionsAndSourceTerms(
        getDOFTableByProcessID(_phase_field_process_id),
        _phase_field_process_id, media);
    // for heat conduction
    initializeProcessBoundaryConditionsAndSourceTerms(
        getDOFTableByProcessID(_heat_conduction_process_id),
        _heat_conduction_process_id, media);
}
 
template <int DisplacementDim>
void ThermoMechanicalPhaseFieldProcess<DisplacementDim>::
    assembleConcreteProcess(const double t, double const dt,
                            std::vector<GlobalVector*> const& x,
                            std::vector<GlobalVector*> const& x_prev,
                            int const process_id, GlobalMatrix& M,
                            GlobalMatrix& K, GlobalVector& b)
{
    DBUG("Assemble the equations for ThermoMechanicalPhaseFieldProcess.");
 
    std::vector<NumLib::LocalToGlobalIndexMap const*> dof_table = {
        _local_to_global_index_map.get()};
 
    // Call global assembler for each local assembly item.
    GlobalExecutor::executeSelectedMemberDereferenced(
        _global_assembler, &VectorMatrixAssembler::assemble, _local_assemblers,
        getActiveElementIDs(), dof_table, t, dt, x, x_prev, process_id, &M, &K,
        &b);
}
 
template <int DisplacementDim>
void ThermoMechanicalPhaseFieldProcess<DisplacementDim>::
    assembleWithJacobianConcreteProcess(
        const double t, double const dt, std::vector<GlobalVector*> const& x,
        std::vector<GlobalVector*> const& x_prev, int const process_id,
        GlobalVector& b, GlobalMatrix& Jac)
{
    // For the staggered scheme
    if (process_id == _mechanics_related_process_id)
    {
        DBUG(
            "Assemble the Jacobian equations of "
            "temperature-deformation in ThermoMechanicalPhaseFieldProcess for "
            "the staggered scheme.");
    }
 
    if (process_id == _phase_field_process_id)
    {
        DBUG(
            "Assemble the Jacobian equations ofphase field in "
            "ThermoMechanicalPhaseFieldProcess for the staggered scheme.");
    }
    else
    {
        DBUG(
            "Assemble the Jacobian equations of heat conduction in "
            "ThermoMechanicalPhaseFieldProcess for the staggered scheme.");
    }
 
    std::vector<NumLib::LocalToGlobalIndexMap const*> dof_tables;
    dof_tables.emplace_back(
        &getDOFTableByProcessID(_heat_conduction_process_id));
    dof_tables.emplace_back(
        &getDOFTableByProcessID(_mechanics_related_process_id));
    dof_tables.emplace_back(&getDOFTableByProcessID(_phase_field_process_id));
 
    GlobalExecutor::executeSelectedMemberDereferenced(
        _global_assembler, &VectorMatrixAssembler::assembleWithJacobian,
        _local_assemblers, getActiveElementIDs(), dof_tables, t, dt, x, x_prev,
        process_id, &b, &Jac);
}
 
template <int DisplacementDim>
void ThermoMechanicalPhaseFieldProcess<DisplacementDim>::
    preTimestepConcreteProcess(std::vector<GlobalVector*> const& x,
                               double const t,
                               double const dt,
                               const int process_id)
{
    DBUG("PreTimestep ThermoMechanicalPhaseFieldProcess.");
 
    if (process_id != _mechanics_related_process_id)
    {
        return;
    }
 
    GlobalExecutor::executeSelectedMemberOnDereferenced(
        &ThermoMechanicalPhaseFieldLocalAssemblerInterface::preTimestep,
        _local_assemblers, getActiveElementIDs(), getDOFTable(process_id),
        *x[process_id], t, dt);
}
 
template <int DisplacementDim>
void ThermoMechanicalPhaseFieldProcess<DisplacementDim>::
    postTimestepConcreteProcess(std::vector<GlobalVector*> const& x,
                                std::vector<GlobalVector*> const& x_prev,
                                double const t,
                                double const dt,
                                int const process_id)
{
    if (process_id != 0)
    {
        return;
    }
 
    DBUG("PostTimestep ThermoMechanicalPhaseFieldProcess.");
 
    GlobalExecutor::executeSelectedMemberOnDereferenced(
        &ThermoMechanicalPhaseFieldLocalAssemblerInterface::postTimestep,
        _local_assemblers, getActiveElementIDs(), getDOFTables(x.size()), x,
        x_prev, t, dt, process_id);
}
 
template <int DisplacementDim>
void ThermoMechanicalPhaseFieldProcess<DisplacementDim>::
    postNonLinearSolverConcreteProcess(std::vector<GlobalVector*> const& x,
                                       std::vector<GlobalVector*> const& x_prev,
                                       const double t, double const dt,
                                       const int process_id)
{
    if (process_id != _mechanics_related_process_id)
    {
        return;
    }
 
    DBUG("PostNonLinearSolver ThermoMechanicalPhaseFieldProcess.");
    // Calculate strain, stress or other internal variables of mechanics.
 
    GlobalExecutor::executeSelectedMemberOnDereferenced(
        &LocalAssemblerInterface::postNonLinearSolver, _local_assemblers,
        getActiveElementIDs(), getDOFTables(x.size()), x, x_prev, t, dt,
        process_id);
}
 
template class ThermoMechanicalPhaseFieldProcess<2>;
template class ThermoMechanicalPhaseFieldProcess<3>;
 
}  // namespace ThermoMechanicalPhaseField
}  // namespace ProcessLib