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eigen_strain_f…

material_igfem_elastic.cc
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			/**
			* @file material_igfem_elastic.cc
			*
			* @author Aurelia Isabel Cuba Ramos <aurelia.cubaramos@epfl.ch>
			*
			*
			* @brief Specializaton of material class for the igfem elastic material
			*
			*
			* Copyright (©) 2010-2012, 2014 EPFL (Ecole Polytechnique Fédérale de Lausanne)
			* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
			*
			*/
			/* -------------------------------------------------------------------------- */
			#include "material_igfem_elastic.hh"
			#include "material_elastic.hh"

			namespace akantu {

			/* -------------------------------------------------------------------------- */
			template <UInt dim>
			MaterialIGFEMElastic<dim>::MaterialIGFEMElastic(SolidMechanicsModel & model,
			const ID & id)
			: Material(model, id), Parent(model, id), lambda("lambda", *this),
			mu("mu", this), kpa("kappa", this) {
			AKANTU_DEBUG_IN();
			this->initialize();
			AKANTU_DEBUG_OUT();
			}

			/* -------------------------------------------------------------------------- */
			template <UInt dim> void MaterialIGFEMElastic<dim>::initialize() {
			this->lambda.initialize(1);
			this->mu.initialize(1);
			this->kpa.initialize(1);
			}

			/* -------------------------------------------------------------------------- */
			template <UInt dim> void MaterialIGFEMElastic<dim>::initMaterial() {
			AKANTU_DEBUG_IN();

			Parent::initMaterial();

			/// insert the sub_material names into the map
			this->sub_material_names[0] = this->name_sub_mat_1;
			this->sub_material_names[1] = this->name_sub_mat_2;

			AKANTU_DEBUG_OUT();
			}

			/* -------------------------------------------------------------------------- */
			template <UInt spatial_dimension>
			void MaterialIGFEMElastic<spatial_dimension>::updateElasticInternals(
			const Array<Element> & element_list) {

			/// compute the Lamé constants for both sub-materials
			Vector<Real> lambda_per_sub_mat(this->nb_sub_materials);
			Vector<Real> mu_per_sub_mat(this->nb_sub_materials);
			Vector<Real> kpa_per_sub_mat(this->nb_sub_materials);
			for (UInt i = 0; i < this->nb_sub_materials; ++i) {
			ID mat_name = this->sub_material_names[i];
			const MaterialElastic<spatial_dimension> & mat =
			dynamic_cast<MaterialElastic<spatial_dimension> &>(
			this->model->getMaterial(mat_name));
			lambda_per_sub_mat(i) = mat.getLambda();
			mu_per_sub_mat(i) = mat.getMu();
			kpa_per_sub_mat(i) = mat.getKappa();
			}

			for (ghost_type_t::iterator g = ghost_type_t::begin();
			g != ghost_type_t::end(); ++g) {
			GhostType ghost_type = *g;
			/// loop over all types in the material
			typedef ElementTypeMapArray<UInt>::type_iterator iterator;
			iterator it = this->element_filter.firstType(spatial_dimension, ghost_type,
			_ek_igfem);
			iterator last_type =
			this->element_filter.lastType(spatial_dimension, ghost_type, _ek_igfem);
			/// loop over all types in the filter
			for (; it != last_type; ++it) {
			ElementType el_type = *it;
			if (el_type == _igfem_triangle_4)
			this->template setSubMaterial<_igfem_triangle_4>(element_list,
			ghost_type);
			else if (el_type == _igfem_triangle_5)
			this->template setSubMaterial<_igfem_triangle_5>(element_list,
			ghost_type);
			else
			AKANTU_ERROR("There is currently no other IGFEM type implemented");

			UInt nb_element = this->element_filter(el_type, ghost_type).getSize();
			UInt nb_quads = this->fem->getNbIntegrationPoints(el_type);
			/// get pointer to internals for given type
			Real * lambda_ptr = this->lambda(el_type, ghost_type).storage();
			Real * mu_ptr = this->mu(el_type, ghost_type).storage();
			Real * kpa_ptr = this->kpa(el_type, ghost_type).storage();
			UInt * sub_mat_ptr = this->sub_material(el_type, ghost_type).storage();
			for (UInt q = 0; q < nb_element * nb_quads;
			++q, ++lambda_ptr, ++mu_ptr, ++kpa_ptr, ++sub_mat_ptr) {
			UInt index = *sub_mat_ptr;
			*lambda_ptr = lambda_per_sub_mat(index);
			*mu_ptr = mu_per_sub_mat(index);
			*kpa_ptr = kpa_per_sub_mat(index);
			}
			}
			}
			}

			/* -------------------------------------------------------------------------- */
			template <UInt spatial_dimension>
			void MaterialIGFEMElastic<spatial_dimension>::computeStress(
			ElementType el_type, GhostType ghost_type) {
			AKANTU_DEBUG_IN();

			Parent::computeStress(el_type, ghost_type);

			if (!this->finite_deformation) {
			/// get pointer to internals
			Real * lambda_ptr = this->lambda(el_type, ghost_type).storage();
			Real * mu_ptr = this->mu(el_type, ghost_type).storage();
			MATERIAL_STRESS_QUADRATURE_POINT_LOOP_BEGIN(el_type, ghost_type);
			this->computeStressOnQuad(grad_u, sigma, lambda_ptr, mu_ptr);
			++lambda_ptr;
			++mu_ptr;
			MATERIAL_STRESS_QUADRATURE_POINT_LOOP_END;
			} else {
			AKANTU_DEBUG_TO_IMPLEMENT();
			}

			AKANTU_DEBUG_OUT();
			}

			/* -------------------------------------------------------------------------- */
			template <UInt spatial_dimension>
			void MaterialIGFEMElastic<spatial_dimension>::computeTangentModuli(
			__attribute__((unused)) ElementType el_type,
			Array<Real> & tangent_matrix,
			__attribute__((unused)) GhostType ghost_type) {
			AKANTU_DEBUG_IN();
			/// get pointer to internals
			Real * lambda_ptr = this->lambda(el_type, ghost_type).storage();
			Real * mu_ptr = this->mu(el_type, ghost_type).storage();
			MATERIAL_TANGENT_QUADRATURE_POINT_LOOP_BEGIN(tangent_matrix);
			this->computeTangentModuliOnQuad(tangent, lambda_ptr, mu_ptr);
			++lambda_ptr;
			++mu_ptr;
			MATERIAL_TANGENT_QUADRATURE_POINT_LOOP_END;

			AKANTU_DEBUG_OUT();
			}

			/* -------------------------------------------------------------------------- */
			template <UInt spatial_dimension>
			void MaterialIGFEMElastic<spatial_dimension>::computePotentialEnergy(
			ElementType el_type, GhostType ghost_type) {
			AKANTU_DEBUG_IN();

			// MaterialThermal<spatial_dimension>::computePotentialEnergy(el_type,
			// ghost_type);

			// if(ghost_type != _not_ghost) return;
			// Array<Real>::scalar_iterator epot = this->potential_energy(el_type,
			// ghost_type).begin();

			// if (!this->finite_deformation) {
			// MATERIAL_STRESS_QUADRATURE_POINT_LOOP_BEGIN(el_type, ghost_type);

			// this->computePotentialEnergyOnQuad(grad_u, sigma, *epot);
			// ++epot;

			// MATERIAL_STRESS_QUADRATURE_POINT_LOOP_END;
			// } else {
			// Matrix<Real> E(spatial_dimension, spatial_dimension);

			// MATERIAL_STRESS_QUADRATURE_POINT_LOOP_BEGIN(el_type, ghost_type);
			// this->template gradUToGreenStrain<spatial_dimension>(grad_u, E);

			// this->computePotentialEnergyOnQuad(E, sigma, *epot);
			// ++epot;

			// MATERIAL_STRESS_QUADRATURE_POINT_LOOP_END;
			// }

			AKANTU_DEBUG_TO_IMPLEMENT();
			AKANTU_DEBUG_OUT();
			}

			/* -------------------------------------------------------------------------- */
			template <UInt spatial_dimension>
			void MaterialIGFEMElastic<spatial_dimension>::computePotentialEnergyByElement(
			ElementType type, UInt index, Vector<Real> & epot_on_quad_points) {
			// Array<Real>::matrix_iterator gradu_it =
			// this->gradu(type).begin(spatial_dimension,
			// spatial_dimension);
			// Array<Real>::matrix_iterator gradu_end =
			// this->gradu(type).begin(spatial_dimension,
			// spatial_dimension);
			// Array<Real>::matrix_iterator stress_it =
			// this->stress(type).begin(spatial_dimension,
			// spatial_dimension);

			// if (this->finite_deformation)
			// stress_it = this->piola_kirchhoff_2(type).begin(spatial_dimension,
			// spatial_dimension);

			// UInt nb_quadrature_points =
			// this->model->getFEEngine().getNbQuadraturePoints(type);

			// gradu_it += index*nb_quadrature_points;
			// gradu_end += (index+1)*nb_quadrature_points;
			// stress_it += index*nb_quadrature_points;

			// Real * epot_quad = epot_on_quad_points.storage();

			// Matrix<Real> grad_u(spatial_dimension, spatial_dimension);

			// for(;gradu_it != gradu_end; ++gradu_it, ++stress_it, ++epot_quad) {

			// if (this->finite_deformation)
			// this->template gradUToGreenStrain<spatial_dimension>(*gradu_it,
			// grad_u);
			// else
			// grad_u.copy(*gradu_it);

			// this->computePotentialEnergyOnQuad(grad_u, stress_it, epot_quad);
			// }
			AKANTU_DEBUG_TO_IMPLEMENT();
			}

			/* -------------------------------------------------------------------------- */
			template <UInt spatial_dimension>
			void MaterialIGFEMElastic<spatial_dimension>::onElementsAdded(
			const Array<Element> & element_list, const NewElementsEvent & event) {

			Parent::onElementsAdded(element_list, event);
			updateElasticInternals(element_list);
			};

			INSTANTIATE_MATERIAL(MaterialIGFEMElastic);

			} // namespace akantu

rAKA/extra_packages/igfem/src/material_igfem/material_igfem_elastic.cc2494dc4e9df3bugfixes/eigen_strain_f…

material_igfem_elastic.ccView Options

rAKA/extra_packages/igfem/src/material_igfem/material_igfem_elastic.cc
2494dc4e9df3bugfixes/eigen_strain_f…

material_igfem_elastic.cc
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