SmallDeformationProcess.cpp
/**
* \file
* \copyright
* Copyright (c) 2012-2021, OpenGeoSys Community (http://www.opengeosys.org)
* Distributed under a Modified BSD License.
* See accompanying file LICENSE.txt or
* http://www.opengeosys.org/project/license
*
*/
#include "SmallDeformationProcess.h"
#include <cassert>
#include <nlohmann/json.hpp>
#include "ProcessLib/Deformation/SolidMaterialInternalToSecondaryVariables.h"
#include "ProcessLib/Output/IntegrationPointWriter.h"
#include "ProcessLib/Process.h"
#include "ProcessLib/SmallDeformation/CreateLocalAssemblers.h"
#include "SmallDeformationFEM.h"
namespace ProcessLib
{
namespace SmallDeformation
{
template <int DisplacementDim>
SmallDeformationProcess<DisplacementDim>::SmallDeformationProcess(
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,
SmallDeformationProcessData<DisplacementDim>&& process_data,
SecondaryVariableCollection&& secondary_variables)
: Process(std::move(name), mesh, std::move(jacobian_assembler), parameters,
integration_order, std::move(process_variables),
std::move(secondary_variables)),
_process_data(std::move(process_data))
{
_nodal_forces = MeshLib::getOrCreateMeshProperty<double>(
mesh, "NodalForces", MeshLib::MeshItemType::Node, DisplacementDim);
_material_forces = MeshLib::getOrCreateMeshProperty<double>(
mesh, "MaterialForces", MeshLib::MeshItemType::Node, DisplacementDim);
_process_data.principal_stress_vector[0] =
MeshLib::getOrCreateMeshProperty<double>(
const_cast<MeshLib::Mesh&>(mesh), "principal_stress_vector_1",
MeshLib::MeshItemType::Cell, 3);
_process_data.principal_stress_vector[1] =
MeshLib::getOrCreateMeshProperty<double>(
const_cast<MeshLib::Mesh&>(mesh), "principal_stress_vector_2",
MeshLib::MeshItemType::Cell, 3);
_process_data.principal_stress_vector[2] =
MeshLib::getOrCreateMeshProperty<double>(
const_cast<MeshLib::Mesh&>(mesh), "principal_stress_vector_3",
MeshLib::MeshItemType::Cell, 3);
_process_data.principal_stress_values =
MeshLib::getOrCreateMeshProperty<double>(
const_cast<MeshLib::Mesh&>(mesh), "principal_stress_values",
MeshLib::MeshItemType::Cell, 3);
// TODO (naumov) remove ip suffix. Probably needs modification of the mesh
// properties, s.t. there is no "overlapping" with cell/point data.
// See getOrCreateMeshProperty.
_integration_point_writer.emplace_back(
std::make_unique<IntegrationPointWriter>(
"sigma_ip",
static_cast<int>(mesh.getDimension() == 2 ? 4 : 6) /*n components*/,
integration_order, [this]() {
// Result containing integration point data for each local
// assembler.
std::vector<std::vector<double>> result;
result.resize(_local_assemblers.size());
for (std::size_t i = 0; i < _local_assemblers.size(); ++i)
{
auto const& local_asm = *_local_assemblers[i];
result[i] = local_asm.getSigma();
}
return result;
}));
}
template <int DisplacementDim>
bool SmallDeformationProcess<DisplacementDim>::isLinear() const
{
return false;
}
template <int DisplacementDim>
void SmallDeformationProcess<DisplacementDim>::initializeConcreteProcess(
NumLib::LocalToGlobalIndexMap const& dof_table,
MeshLib::Mesh const& mesh,
unsigned const integration_order)
{
using nlohmann::json;
ProcessLib::SmallDeformation::createLocalAssemblers<
DisplacementDim, SmallDeformationLocalAssembler>(
mesh.getElements(), dof_table, _local_assemblers,
mesh.isAxiallySymmetric(), integration_order, _process_data);
auto add_secondary_variable = [&](std::string const& name,
int const num_components,
auto get_ip_values_function) {
_secondary_variables.addSecondaryVariable(
name,
makeExtrapolator(num_components, getExtrapolator(),
_local_assemblers,
std::move(get_ip_values_function)));
};
add_secondary_variable("free_energy_density",
1,
&LocalAssemblerInterface::getIntPtFreeEnergyDensity);
add_secondary_variable("sigma",
MathLib::KelvinVector::KelvinVectorType<
DisplacementDim>::RowsAtCompileTime,
&LocalAssemblerInterface::getIntPtSigma);
add_secondary_variable("epsilon",
MathLib::KelvinVector::KelvinVectorType<
DisplacementDim>::RowsAtCompileTime,
&LocalAssemblerInterface::getIntPtEpsilon);
//
// enable output of internal variables defined by material models
//
ProcessLib::Deformation::solidMaterialInternalToSecondaryVariables<
LocalAssemblerInterface>(_process_data.solid_materials,
add_secondary_variable);
// Set initial conditions for integration point data.
for (auto const& ip_writer : _integration_point_writer)
{
// Find the mesh property with integration point writer's name.
auto const& name = ip_writer->name();
if (!mesh.getProperties().existsPropertyVector<double>(name))
{
continue;
}
auto const& mesh_property =
*mesh.getProperties().template getPropertyVector<double>(name);
// The mesh property must be defined on integration points.
if (mesh_property.getMeshItemType() !=
MeshLib::MeshItemType::IntegrationPoint)
{
continue;
}
auto const ip_meta_data = getIntegrationPointMetaData(mesh, name);
// Check the number of components.
if (ip_meta_data.n_components !=
mesh_property.getNumberOfGlobalComponents())
{
OGS_FATAL(
"Different number of components in meta data ({:d}) than in "
"the integration point field data for '{:s}': {:d}.",
ip_meta_data.n_components, name,
mesh_property.getNumberOfGlobalComponents());
}
// Now we have a properly named vtk's field data array and the
// corresponding meta data.
std::size_t position = 0;
for (auto& local_asm : _local_assemblers)
{
std::size_t const integration_points_read =
local_asm->setIPDataInitialConditions(
name, &mesh_property[position],
ip_meta_data.integration_order);
if (integration_points_read == 0)
{
OGS_FATAL(
"No integration points read in the integration point "
"initial conditions set function.");
}
position += integration_points_read * ip_meta_data.n_components;
}
}
// Initialize local assemblers after all variables have been set.
GlobalExecutor::executeMemberOnDereferenced(
&LocalAssemblerInterface::initialize, _local_assemblers,
*_local_to_global_index_map);
}
template <int DisplacementDim>
void SmallDeformationProcess<DisplacementDim>::assembleConcreteProcess(
const double t, double const dt, std::vector<GlobalVector*> const& x,
std::vector<GlobalVector*> const& xdot, int const process_id,
GlobalMatrix& M, GlobalMatrix& K, GlobalVector& b)
{
DBUG("Assemble SmallDeformationProcess.");
ProcessLib::ProcessVariable const& pv = getProcessVariables(process_id)[0];
std::vector<std::reference_wrapper<NumLib::LocalToGlobalIndexMap>>
dof_table = {std::ref(*_local_to_global_index_map)};
// Call global assembler for each local assembly item.
GlobalExecutor::executeSelectedMemberDereferenced(
_global_assembler, &VectorMatrixAssembler::assemble, _local_assemblers,
pv.getActiveElementIDs(), dof_table, t, dt, x, xdot, process_id, M, K,
b);
}
template <int DisplacementDim>
void SmallDeformationProcess<DisplacementDim>::
assembleWithJacobianConcreteProcess(
const double t, double const dt, std::vector<GlobalVector*> const& x,
std::vector<GlobalVector*> const& xdot, const double dxdot_dx,
const double dx_dx, int const process_id, GlobalMatrix& M,
GlobalMatrix& K, GlobalVector& b, GlobalMatrix& Jac)
{
DBUG("AssembleWithJacobian SmallDeformationProcess.");
ProcessLib::ProcessVariable const& pv = getProcessVariables(process_id)[0];
std::vector<std::reference_wrapper<NumLib::LocalToGlobalIndexMap>>
dof_table = {std::ref(*_local_to_global_index_map)};
// Call global assembler for each local assembly item.
GlobalExecutor::executeSelectedMemberDereferenced(
_global_assembler, &VectorMatrixAssembler::assembleWithJacobian,
_local_assemblers, pv.getActiveElementIDs(), dof_table, t, dt, x, xdot,
dxdot_dx, dx_dx, process_id, M, K, b, Jac);
transformVariableFromGlobalVector(b, 0, *_local_to_global_index_map,
*_nodal_forces, std::negate<double>());
}
template <int DisplacementDim>
void SmallDeformationProcess<DisplacementDim>::postTimestepConcreteProcess(
std::vector<GlobalVector*> const& x, const double t, const double dt,
int const process_id)
{
DBUG("PostTimestep SmallDeformationProcess.");
std::vector<NumLib::LocalToGlobalIndexMap const*> dof_tables;
dof_tables.reserve(x.size());
std::generate_n(std::back_inserter(dof_tables), x.size(),
[&]() { return _local_to_global_index_map.get(); });
ProcessLib::ProcessVariable const& pv = getProcessVariables(process_id)[0];
GlobalExecutor::executeSelectedMemberOnDereferenced(
&LocalAssemblerInterface::postTimestep, _local_assemblers,
pv.getActiveElementIDs(), dof_tables, x, t, dt);
std::unique_ptr<GlobalVector> material_forces;
ProcessLib::SmallDeformation::writeMaterialForces(
material_forces, _local_assemblers, *_local_to_global_index_map,
*x[process_id]);
material_forces->copyValues(*_material_forces);
}
template <int DisplacementDim>
void SmallDeformationProcess<DisplacementDim>::computeSecondaryVariableConcrete(
double const t, double const dt, std::vector<GlobalVector*> const& x,
GlobalVector const& x_dot, const int process_id)
{
DBUG("Compute the secondary variables for SmallDeformationProcess.");
std::vector<NumLib::LocalToGlobalIndexMap const*> dof_tables;
dof_tables.reserve(x.size());
std::generate_n(std::back_inserter(dof_tables), x.size(),
[&]() { return _local_to_global_index_map.get(); });
ProcessLib::ProcessVariable const& pv = getProcessVariables(process_id)[0];
GlobalExecutor::executeSelectedMemberOnDereferenced(
&LocalAssemblerInterface::computeSecondaryVariable, _local_assemblers,
pv.getActiveElementIDs(), dof_tables, t, dt, x, x_dot, process_id);
}
template class SmallDeformationProcess<2>;
template class SmallDeformationProcess<3>;
} // namespace SmallDeformation
} // namespace ProcessLib