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contact_mechanics_model.cc
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			/**
			* @file coontact_mechanics_model.cc
			*
			* @author Mohit Pundir <mohit.pundir@epfl.ch>
			*
			* @date creation: Tue May 08 2012
			* @date last modification: Wed Feb 21 2018
			*
			* @brief Contact mechanics 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 "contact_mechanics_model.hh"
			#include "integrator_gauss.hh"
			#include "shape_lagrange.hh"
			/* -------------------------------------------------------------------------- */
			#include <algorithm>
			/* -------------------------------------------------------------------------- */


			namespace akantu {

			ContactMechanicsModel::ContactMechanicsModel( 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>("ContactMechanicsModel", mesh,
			Model::spatial_dimension);
			this->initDOFManager();

			this->detector = std::make_unique<ContactDetector>(this->mesh, id + ":contact_detector");

			AKANTU_DEBUG_OUT();

			}

			/* -------------------------------------------------------------------------- */
			ContactMechanicsModel::~ContactMechanicsModel() {
			AKANTU_DEBUG_IN();

			AKANTU_DEBUG_OUT();
			}

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

			Model::initFullImpl(options);

			// initalize the resolutions
			if (this->parser.getLastParsedFile() != "") {
			this->instantiateResolutions();
			}

			this->initResolutions();

			}

			/* -------------------------------------------------------------------------- */
			void ContactMechanicsModel::instantiateResolutions() {
			ParserSection model_section;
			bool is_empty;
			std::tie(model_section, is_empty) = this->getParserSection();

			if (not is_empty) {
			auto model_resolutions = model_section.getSubSections(ParserType::_contact_resolution);
			for (const auto & section : model_resolutions) {
			this->registerNewResolution(section);
			}
			}

			auto sub_sections = this->parser.getSubSections(ParserType::_contact_resolution);
			for (const auto & section : sub_sections) {
			this->registerNewResolution(section);
			}

			if (resolutions.empty())
			AKANTU_EXCEPTION("No contact resolutions where instantiated for the model"
			<< getID());
			}

			/* -------------------------------------------------------------------------- */
			Resolution &
			ContactMechanicsModel::registerNewResolution(const ParserSection & section) {
			std::string res_name;
			std::string res_type = section.getName();
			std::string opt_param = section.getOption();

			try {
			std::string tmp = section.getParameter("name");
			res_name = tmp; /** this can seem weird, but there is an ambiguous operator
			* overload that i couldn't solve. @todo remove the
			* weirdness of this code
			*/
			} catch (debug::Exception &) {
			AKANTU_ERROR("A contact resolution of type \'"
			<< res_type
			<< "\' in the input file has been defined without a name!");
			}
			Resolution & res = this->registerNewResolution(res_name, res_type, opt_param);

			res.parseSection(section);

			return res;
			}

			/* -------------------------------------------------------------------------- */
			Resolution & ContactMechanicsModel::registerNewResolution(const ID & res_name,
			const ID & res_type,
			const ID & opt_param) {
			AKANTU_DEBUG_ASSERT(resolutions_names_to_id.find(res_name) ==
			resolutions_names_to_id.end(),
			"A resolution with this name '"
			<< res_name << "' has already been registered. "
			<< "Please use unique names for resolutions");

			UInt res_count = resolutions.size();
			resolutions_names_to_id[res_name] = res_count;

			std::stringstream sstr_res;
			sstr_res << this->id << ":" << res_count << ":" << res_type;
			ID res_id = sstr_res.str();

			std::unique_ptr<Resolution> resolution = ResolutionFactory::getInstance().allocate(
			res_type, spatial_dimension, opt_param, *this, res_id);

			resolutions.push_back(std::move(resolution));

			return *(resolutions.back());
			}

			/* -------------------------------------------------------------------------- */
			void ContactMechanicsModel::initResolutions() {
			AKANTU_DEBUG_ASSERT(resolutions.size() != 0, "No resolutions to initialize !");

			if (!are_resolutions_instantiated)
			instantiateResolutions();

			// \TODO check if each resolution needs a initResolution() method
			}

			/* -------------------------------------------------------------------------- */
			void ContactMechanicsModel::initModel() {
			getFEEngine().initShapeFunctions(_not_ghost);
			getFEEngine().initShapeFunctions(_ghost);
			}


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


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

			/* @todo contact mechanics model doesnt really needs a solver have
			to find a way to fix this absurd part
			*/
			return std::make_tuple("contact", _tsst_static);
			}

			/* -------------------------------------------------------------------------- */
			void ContactMechanicsModel::assembleResidual() {
			AKANTU_DEBUG_IN();

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

			/* ------------------------------------------------------------------------ */
			this->getDOFManager().assembleToResidual("displacement",
			*this->contact_force, 1);

			AKANTU_DEBUG_OUT();
			}

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

			AKANTU_DEBUG_INFO("Assemble the contact forces");

			// assemble the forces due to local stresses
			AKANTU_DEBUG_INFO("Assemble residual for local elements");
			for (auto & resolution : resolutions) {
			resolution->assembleInternalForces(_not_ghost);
			}

			// assemble the stresses due to ghost elements
			AKANTU_DEBUG_INFO("Assemble residual for ghost elements");
			for (auto & resolution : resolutions) {
			resolution->assembleInternalForces(_ghost);
			}

			AKANTU_DEBUG_OUT();

			}

			/* -------------------------------------------------------------------------- */
			void ContactMechanicsModel::printself(std::ostream & stream, int indent) const {
			std::string space;
			for (Int i = 0; i < indent; i++, space += AKANTU_INDENT)
			;

			stream << space << "Contact Mechanics Model [" << std::endl;
			stream << space << " + id : " << id << std::endl;
			stream << space << " + spatial dimension : " << Model::spatial_dimension
			<< std::endl;
			stream << space << " + fem [" << std::endl;
			getFEEngine().printself(stream, indent + 2);
			stream << space << AKANTU_INDENT << "]" << std::endl;

			stream << space << " + resolutions [" << std::endl;
			for (auto & resolution : resolutions) {
			resolution->printself(stream, indent + 1);
			}
			stream << space << AKANTU_INDENT << "]" << std::endl;

			stream << space << "]" << std::endl;
			}


			/* -------------------------------------------------------------------------- */
			MatrixType ContactMechanicsModel::getMatrixType(const ID & matrix_id) {
			// \TODO correct it for contact mechanics model, only one type of matrix
			if (matrix_id == "C")
			return _mt_not_defined;

			return _symmetric;
			}

			/* -------------------------------------------------------------------------- */
			void ContactMechanicsModel::assembleMatrix(const ID & matrix_id) {
			AKANTU_TO_IMPLEMENT();
			}

			/* -------------------------------------------------------------------------- */
			void ContactMechanicsModel::assembleLumpedMatrix(const ID & matrix_id) {
			AKANTU_TO_IMPLEMENT();
			}

rAKA/src/model/contact_mechanics/contact_mechanics_model.ccc50dec22606dbugfixes/all_bugs_found…

contact_mechanics_model.ccView Options

rAKA/src/model/contact_mechanics/contact_mechanics_model.cc
c50dec22606dbugfixes/all_bugs_found…

contact_mechanics_model.cc
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