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coupler_solid_phasefield.cc
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			/**
			* @file coupler_solid_phasefield.cc
			*
			* @author Mohit Pundir <mohit.pundir@epfl.ch>
			*
			* @date creation: Fri Sep 28 2018
			* @date last modification: Thu Jun 20 2019
			*
			* @brief class for coupling of solid mechancis and phasefield model
			*
			* @section LICENSE
			*
			* Copyright (©) 2010-2018 EPFL (Ecole Polytechnique Fédérale de Lausanne)
			* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
			*
			* Akantu is free software: you can redistribute it and/or modify it under the
			* terms of the GNU Lesser General Public License as published by the Free
			* Software Foundation, either version 3 of the License, or (at your option) any
			* later version.
			*
			* Akantu is distributed in the hope that it will be useful, but WITHOUT ANY
			* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
			* A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
			* details.
			*
			* You should have received a copy of the GNU Lesser General Public License
			* along with Akantu. If not, see <http://www.gnu.org/licenses/>.
			*
			*/

			/* -------------------------------------------------------------------------- */
			#include "coupler_solid_phasefield.hh"
			#include "dumpable_inline_impl.hh"
			#include "integrator_gauss.hh"
			#include "shape_lagrange.hh"

			#ifdef AKANTU_USE_IOHELPER
			#include "dumper_iohelper_paraview.hh"
			#endif
			/* -------------------------------------------------------------------------- */

			namespace akantu {

			CouplerSolidPhaseField::CouplerSolidPhaseField(Mesh & mesh, UInt dim,
			const ID & id,
			const MemoryID & memory_id,
			const ModelType model_type)
			: Model(mesh, model_type, dim, id, memory_id) {

			AKANTU_DEBUG_IN();

			this->registerFEEngineObject<MyFEEngineType>("CouplerSolidPhaseField", mesh,
			Model::spatial_dimension);

			#if defined(AKANTU_USE_IOHELPER)
			this->mesh.registerDumper<DumperParaview>("coupler_solid_phasefield", id,
			true);
			this->mesh.addDumpMeshToDumper("coupler_solid_phasefield", mesh,
			Model::spatial_dimension, _not_ghost,
			_ek_regular);
			#endif

			this->registerDataAccessor(*this);

			solid = new SolidMechanicsModel(mesh, Model::spatial_dimension,
			"solid_mechanics_model", 0);
			phasefield = new PhaseFieldModel(mesh, Model::spatial_dimension,
			"phase_field_model", 0);

			AKANTU_DEBUG_OUT();
			}

			/* -------------------------------------------------------------------------- */
			CouplerSolidPhaseField::~CouplerSolidPhaseField() {}

			/* -------------------------------------------------------------------------- */
			void CouplerSolidPhaseField::initFullImpl(const ModelOptions & options) {

			Model::initFullImpl(options);

			this->initBC(this, displacement, displacement_increment, external_force);
			}

			/* -------------------------------------------------------------------------- */
			void CouplerSolidPhaseField::initModel() {

			getFEEngine().initShapeFunctions(_not_ghost);
			getFEEngine().initShapeFunctions(_ghost);
			}

			/* -------------------------------------------------------------------------- */
			FEEngine & CouplerSolidPhaseField::getFEEngineBoundary(const ID & name) {
			return dynamic_cast<FEEngine &>(
			getFEEngineClassBoundary<MyFEEngineType>(name));
			}

			/* -------------------------------------------------------------------------- */
			void CouplerSolidPhaseField::initSolver(TimeStepSolverType,
			NonLinearSolverType) {}

			/* -------------------------------------------------------------------------- */
			std::tuple<ID, TimeStepSolverType>
			CouplerSolidPhaseField::getDefaultSolverID(const AnalysisMethod & method) {

			return std::make_tuple("unkown", TimeStepSolverType::_not_defined);
			}

			/* -------------------------------------------------------------------------- */
			TimeStepSolverType CouplerSolidPhaseField::getDefaultSolverType() const {
			return TimeStepSolverType::_dynamic_lumped;
			}

			/* -------------------------------------------------------------------------- */
			ModelSolverOptions CouplerSolidPhaseField::getDefaultSolverOptions(
			const TimeStepSolverType & type) const {
			ModelSolverOptions options;

			switch (type) {
			case TimeStepSolverType::_dynamic_lumped: {
			options.non_linear_solver_type = NonLinearSolverType::_lumped;
			options.integration_scheme_type["displacement"] =
			IntegrationSchemeType::_central_difference;
			options.solution_type["displacement"] = IntegrationScheme::_acceleration;
			break;
			}
			case TimeStepSolverType::_dynamic: {
			options.non_linear_solver_type = NonLinearSolverType::_lumped;
			options.integration_scheme_type["displacement"] =
			IntegrationSchemeType::_central_difference;
			options.solution_type["displacement"] = IntegrationScheme::_acceleration;
			break;
			}
			case TimeStepSolverType::_static: {
			options.non_linear_solver_type = NonLinearSolverType::_linear;
			options.integration_scheme_type["displacement"] =
			IntegrationSchemeType::_pseudo_time;
			options.solution_type["displacement"] = IntegrationScheme::_not_defined;
			break;
			}
			default:
			AKANTU_EXCEPTION(type << " is not a valid time step solver type");
			break;
			}

			return options;
			}

			/* -------------------------------------------------------------------------- */
			void CouplerSolidPhaseField::assembleResidual() {

			// computes the internal forces
			this->assembleInternalForces();

			auto & solid_internal_force = solid->getInternalForce();
			auto & solid_external_force = solid->getExternalForce();

			auto & phasefield_internal_force = phasefield->getInternalForce();
			auto & phasefield_external_force = phasefield->getExternalForce();

			/* ------------------------------------------------------------------------ */
			this->getDOFManager().assembleToResidual("displacement", solid_external_force,
			1);
			this->getDOFManager().assembleToResidual("displacement", solid_internal_force,
			1);
			this->getDOFManager().assembleToResidual("damage", phasefield_external_force,
			1);
			this->getDOFManager().assembleToResidual("damage", phasefield_internal_force,
			1);
			}

			/* -------------------------------------------------------------------------- */
			void CouplerSolidPhaseField::assembleResidual(const ID & residual_part) {
			AKANTU_DEBUG_IN();

			auto & solid_internal_force = solid->getInternalForce();
			auto & solid_external_force = solid->getExternalForce();

			auto & phasefield_internal_force = phasefield->getInternalForce();
			auto & phasefield_external_force = phasefield->getExternalForce();

			if ("external" == residual_part) {
			this->getDOFManager().assembleToResidual("displacement",
			solid_external_force, 1);
			this->getDOFManager().assembleToResidual("displacement",
			solid_internal_force, 1);
			AKANTU_DEBUG_OUT();
			return;
			}

			if ("internal" == residual_part) {
			this->getDOFManager().assembleToResidual("damage",
			phasefield_external_force, 1);
			this->getDOFManager().assembleToResidual("damage",
			phasefield_internal_force, 1);
			AKANTU_DEBUG_OUT();
			return;
			}

			AKANTU_CUSTOM_EXCEPTION(
			debug::SolverCallbackResidualPartUnknown(residual_part));

			AKANTU_DEBUG_OUT();
			}

			/* -------------------------------------------------------------------------- */
			void CouplerSolidPhaseField::beforeSolveStep() {}

			/* -------------------------------------------------------------------------- */
			void CouplerSolidPhaseField::afterSolveStep() {}

			/* -------------------------------------------------------------------------- */
			void CouplerSolidPhaseField::predictor() {}

			/* -------------------------------------------------------------------------- */
			void CouplerSolidPhaseField::corrector() {}

			/* -------------------------------------------------------------------------- */
			MatrixType CouplerSolidPhaseField::getMatrixType(const ID & matrix_id) {

			if (matrix_id == "K")
			return _symmetric;
			if (matrix_id == "M") {
			return _symmetric;
			}
			return _mt_not_defined;
			}

			/* -------------------------------------------------------------------------- */
			void CouplerSolidPhaseField::assembleMatrix(const ID & matrix_id) {

			if (matrix_id == "K") {
			this->assembleStiffnessMatrix();
			} else if (matrix_id == "M") {
			solid->assembleMass();
			}
			}

			/* -------------------------------------------------------------------------- */
			void CouplerSolidPhaseField::assembleLumpedMatrix(const ID & matrix_id) {
			if (matrix_id == "M") {
			solid->assembleMassLumped();
			}
			}

			/* -------------------------------------------------------------------------- */
			void CouplerSolidPhaseField::assembleInternalForces() {
			AKANTU_DEBUG_IN();

			AKANTU_DEBUG_INFO("Assemble the internal forces");

			solid->assembleInternalForces();
			phasefield->assembleInternalForces();

			AKANTU_DEBUG_OUT();
			}

			/* -------------------------------------------------------------------------- */
			void CouplerSolidPhaseField::assembleStiffnessMatrix() {
			AKANTU_DEBUG_IN();

			AKANTU_DEBUG_INFO("Assemble the new stiffness matrix");

			solid->assembleStiffnessMatrix();
			phasefield->assembleStiffnessMatrix();

			AKANTU_DEBUG_OUT();
			}

			/* -------------------------------------------------------------------------- */
			void CouplerSolidPhaseField::assembleMassLumped() {
			solid->assembleMassLumped();
			}

			/* -------------------------------------------------------------------------- */
			void CouplerSolidPhaseField::assembleMass() { solid->assembleMass(); }

			/* -------------------------------------------------------------------------- */
			void CouplerSolidPhaseField::assembleMassLumped(GhostType ghost_type) {
			//solid->assembleMassLumped(ghost_type);
			}

			/* -------------------------------------------------------------------------- */
			void CouplerSolidPhaseField::assembleMass(GhostType ghost_type) {
			//solid->assembleMass(ghost_type);
			}

			/* ------------------------------------------------------------------------- */
			void CouplerSolidPhaseField::computeDamageOnQuadPoints(
			const GhostType & ghost_type) {

			AKANTU_DEBUG_IN();

			auto & fem = phasefield->getFEEngine();
			auto & mesh = phasefield->getMesh();

			switch (spatial_dimension) {
			case 1: {
			auto & mat = static_cast<MaterialPhaseField<1> &>(solid->getMaterial(0));
			auto & damage = mat.getDamage();
			for (auto & type :
			mesh.elementTypes(Model::spatial_dimension, ghost_type)) {
			auto & damage_on_qpoints_vect = damage(type, ghost_type);
			fem.interpolateOnIntegrationPoints(
			phasefield->getDamage(), damage_on_qpoints_vect, 1, type, ghost_type);
			}

			break;
			}
			case 2: {
			auto & mat = static_cast<MaterialPhaseField<2> &>(solid->getMaterial(0));
			auto & damage = mat.getDamage();

			for (auto & type :
			mesh.elementTypes(Model::spatial_dimension, ghost_type)) {
			auto & damage_on_qpoints_vect = damage(type, ghost_type);
			fem.interpolateOnIntegrationPoints(
			phasefield->getDamage(), damage_on_qpoints_vect, 1, type, ghost_type);
			}
			break;
			}
			default:
			auto & mat = static_cast<MaterialPhaseField<3> &>(solid->getMaterial(0));
			break;
			}

			AKANTU_DEBUG_OUT();
			}

			/* ------------------------------------------------------------------------- */
			void CouplerSolidPhaseField::computeStrainOnQuadPoints(
			const GhostType & ghost_type) {
			AKANTU_DEBUG_IN();

			auto & strain_on_qpoints = phasefield->getStrain();
			auto & gradu_on_qpoints = solid->getMaterial(0).getGradU();

			for (auto & type : mesh.elementTypes(Model::spatial_dimension, ghost_type)) {
			auto & strain_on_qpoints_vect = strain_on_qpoints(type, ghost_type);
			auto & gradu_on_qpoints_vect = gradu_on_qpoints(type, ghost_type);
			for (auto && values :
			zip(make_view(strain_on_qpoints_vect, Model::spatial_dimension,
			Model::spatial_dimension),
			make_view(gradu_on_qpoints_vect, Model::spatial_dimension,
			Model::spatial_dimension))) {
			auto & strain = std::get<0>(values);
			auto & grad_u = std::get<1>(values);
			this->gradUToEpsilon(grad_u, strain);
			}
			}

			AKANTU_DEBUG_OUT();
			}

			/* ------------------------------------------------------------------------- */
			void CouplerSolidPhaseField::solve() {

			solid->solveStep();
			this->computeStrainOnQuadPoints(_not_ghost);

			phasefield->solveStep();
			this->computeDamageOnQuadPoints(_not_ghost);

			solid->assembleInternalForces();
			}

			/* ------------------------------------------------------------------------- */
			void CouplerSolidPhaseField::gradUToEpsilon(const Matrix<Real> & grad_u,
			Matrix<Real> & epsilon) {
			for (UInt i = 0; i < Model::spatial_dimension; ++i) {
			for (UInt j = 0; j < Model::spatial_dimension; ++j)
			epsilon(i, j) = 0.5 * (grad_u(i, j) + grad_u(j, i));
			}
			}

			/* ------------------------------------------------------------------------- */
			bool CouplerSolidPhaseField::checkConvergence(Array<Real> & u_new,
			Array<Real> & u_old,
			Array<Real> & d_new,
			Array<Real> & d_old) {

			const Array<bool> & blocked_dofs = solid->getBlockedDOFs();
			UInt nb_degree_of_freedom = u_new.size();

			auto u_n_it = u_new.begin();
			auto u_o_it = u_old.begin();
			auto bld_it = blocked_dofs.begin();

			Real norm = 0;
			for (UInt n = 0; n < nb_degree_of_freedom;
			++n, ++u_n_it, ++u_o_it, ++bld_it) {
			if ((!*bld_it)) {
			norm += (u_n_it - u_o_it) * (u_n_it - u_o_it);
			}
			}

			norm = std::sqrt(norm);

			auto d_n_it = d_new.begin();
			auto d_o_it = d_old.begin();
			nb_degree_of_freedom = d_new.size();

			Real norm2 = 0;
			for (UInt i = 0; i < nb_degree_of_freedom; ++i) {
			norm2 += (d_n_it - d_o_it);
			}

			norm2 = std::sqrt(norm2);

			Real error = std::max(norm, norm2);

			Real tolerance = 1e-8;
			if (error < tolerance) {

			return true;
			}

			return false;
			}

			/* -------------------------------------------------------------------------- */
			#ifdef AKANTU_USE_IOHELPER

			/* -------------------------------------------------------------------------- */
			std::shared_ptr<dumper::Field> CouplerSolidPhaseField::createElementalField(
			const std::string & field_name, const std::string & group_name,
			bool padding_flag, const UInt & spatial_dimension,
			const ElementKind & kind) {

			return solid->createElementalField(field_name, group_name, padding_flag,
			spatial_dimension, kind);

			std::shared_ptr<dumper::Field> field;
			return field;
			}

			/* -------------------------------------------------------------------------- */
			std::shared_ptr<dumper::Field>
			CouplerSolidPhaseField::createNodalFieldReal(const std::string & field_name,
			const std::string & group_name,
			bool padding_flag) {

			return solid->createNodalFieldReal(field_name, group_name, padding_flag);

			std::shared_ptr<dumper::Field> field;
			return field;
			}

			/* -------------------------------------------------------------------------- */
			std::shared_ptr<dumper::Field>
			CouplerSolidPhaseField::createNodalFieldBool(const std::string & field_name,
			const std::string & group_name,
			bool padding_flag) {

			return solid->createNodalFieldBool(field_name, group_name, padding_flag);

			std::shared_ptr<dumper::Field> field;
			return field;
			}

			#else

			/* -------------------------------------------------------------------------- */
			std::shared_ptr<dumper::Field> CouplerSolidPhaseField::createElementalField(
			const std::string &, const std::string &, bool, const UInt &,
			const ElementKind &) {
			return nullptr;
			}

			/* ----------------------------------------------------------------------- */
			std::shared_ptr<dumper::Field>
			CouplerSolidPhaseField::createNodalFieldReal(const std::string &,
			const std::string &, bool) {
			return nullptr;
			}

			/-------------------------------------------------------------------/
			std::shared_ptr<dumper::Field>
			CouplerSolidPhaseField::createNodalFieldBool(const std::string &,
			const std::string &, bool) {
			return nullptr;
			}

			#endif

			/* -----------------------------------------------------------------------*/
			void CouplerSolidPhaseField::dump(const std::string & dumper_name) {
			solid->onDump();
			mesh.dump(dumper_name);
			}

			/* ------------------------------------------------------------------------*/
			void CouplerSolidPhaseField::dump(const std::string & dumper_name, UInt step) {
			solid->onDump();
			mesh.dump(dumper_name, step);
			}

			/* ----------------------------------------------------------------------- */
			void CouplerSolidPhaseField::dump(const std::string & dumper_name, Real time,
			UInt step) {
			solid->onDump();
			mesh.dump(dumper_name, time, step);
			}

			/* -------------------------------------------------------------------------- */
			void CouplerSolidPhaseField::dump() {
			solid->onDump();
			mesh.dump();
			}

			/* -------------------------------------------------------------------------- */
			void CouplerSolidPhaseField::dump(UInt step) {
			solid->onDump();
			mesh.dump(step);
			}

			/* -------------------------------------------------------------------------- */
			void CouplerSolidPhaseField::dump(Real time, UInt step) {
			solid->onDump();
			mesh.dump(time, step);
			}

			} // namespace akantu

rAKA/src/model/model_couplers/coupler_solid_phasefield.cc837ecef167c0features/cohesive_clust…

coupler_solid_phasefield.ccView Options

rAKA/src/model/model_couplers/coupler_solid_phasefield.cc
837ecef167c0features/cohesive_clust…

coupler_solid_phasefield.cc
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