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solid_mechanics_model_igfem.cc
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Wed, Oct 2, 00:27

solid_mechanics_model_igfem.cc
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/**
* @file solid_mechanics_model_igfem.hh
*
* @author Aurelia Isabel Cuba Ramos <aurelia.cubaramos@epfl.ch>
*
*
* @brief solid mechanics model for IGFEM analysis
*
* @section LICENSE
*
* Copyright (©) 2010-2012, 2014 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
*/
/* -------------------------------------------------------------------------- */
#include "solid_mechanics_model_igfem.hh"
#include "dumpable_inline_impl.hh"
#include "material_igfem.hh"
#include "group_manager_inline_impl.cc"
#ifdef AKANTU_USE_IOHELPER
# include "dumper_paraview.hh"
# include "dumper_igfem_material_internal_field.hh"
#endif
/* -------------------------------------------------------------------------- */
__BEGIN_AKANTU__
const SolidMechanicsModelIGFEMOptions default_solid_mechanics_model_igfem_options(_static,
false,
false);
SolidMechanicsModelIGFEM::SolidMechanicsModelIGFEM(Mesh & mesh,
UInt dim,
const ID & id,
const MemoryID & memory_id) :
SolidMechanicsModel(mesh, dim, id, memory_id),
IGFEMEnrichment(mesh) {
AKANTU_DEBUG_IN();
delete material_selector;
material_selector = new DefaultMaterialIGFEMSelector(*this);
this->registerEventHandler(*this);
#if defined(AKANTU_USE_IOHELPER)
this->mesh.registerDumper<DumperParaview>("igfem elements", id);
this->mesh.addDumpMeshToDumper("igfem elements",
mesh, spatial_dimension, _not_ghost, _ek_igfem);
#endif
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
SolidMechanicsModelIGFEM::~SolidMechanicsModelIGFEM() {
AKANTU_DEBUG_IN();
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
void SolidMechanicsModelIGFEM::initFull(const ModelOptions & options) {
AKANTU_DEBUG_IN();
/// intialize the IGFEM enrichment
this->initialize();
const SolidMechanicsModelIGFEMOptions & smmc_options =
dynamic_cast<const SolidMechanicsModelIGFEMOptions &>(options);
this->moving_interface = smmc_options.moving_interface;
SolidMechanicsModel::initFull(options);
// set the initial condition to 0
real_force->clear();
real_displacement->clear();
igfem_nodes->copy(this->mesh.getNodes());
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
/**
* Allocate all the needed vectors. By default their are not necessarily set to
* 0
*
*/
void SolidMechanicsModelIGFEM::initArrays() {
AKANTU_DEBUG_IN();
UInt nb_nodes = mesh.getNbNodes();
std::stringstream sstr_rdisp; sstr_rdisp << id << ":real_displacement";
std::stringstream sstr_rforc; sstr_rforc << id << ":real_force";
std::stringstream sstr_rresi; sstr_rresi << id << ":real_residual";
std::stringstream sstr_inodes; sstr_inodes << id << ":igfem_nodes";
real_displacement = &(alloc<Real>(sstr_rdisp.str(), nb_nodes, spatial_dimension, REAL_INIT_VALUE));
real_force = &(alloc<Real>(sstr_rforc.str(), nb_nodes, spatial_dimension, REAL_INIT_VALUE));
real_residual = &(alloc<Real>(sstr_rresi.str(), nb_nodes, spatial_dimension, REAL_INIT_VALUE));
igfem_nodes = &(alloc<Real>(sstr_inodes.str(), nb_nodes, spatial_dimension, REAL_INIT_VALUE));
SolidMechanicsModel::initArrays();
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
void SolidMechanicsModelIGFEM::initMaterials() {
AKANTU_DEBUG_IN();
// make sure the material are instantiated
if(!are_materials_instantiated) instantiateMaterials();
/// find the first igfem material
UInt igfem_index = 0;
while ((dynamic_cast<MaterialIGFEM *>(materials[igfem_index]) == NULL)
&& igfem_index <= materials.size())
++igfem_index;
AKANTU_DEBUG_ASSERT(igfem_index != materials.size(),
"No igfem materials in the material input file");
(dynamic_cast<DefaultMaterialIGFEMSelector *>(material_selector))->setIGFEMFallback(igfem_index);
SolidMechanicsModel::initMaterials();
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
/**
* Initialize the model, basically pre-compute the shapes, shapes derivatives
* and jacobian
*
*/
void SolidMechanicsModelIGFEM::initModel() {
AKANTU_DEBUG_IN();
SolidMechanicsModel::initModel();
registerFEEngineObject<MyFEEngineIGFEMType>("IGFEMFEEngine", mesh, spatial_dimension);
/// add the igfem type connectivities
ElementType type = _not_defined;
for (ghost_type_t::iterator gt = ghost_type_t::begin();
gt != ghost_type_t::end(); ++gt) {
GhostType type_ghost = *gt;
Mesh::type_iterator it = mesh.firstType(spatial_dimension, type_ghost);
Mesh::type_iterator last = mesh.lastType(spatial_dimension, type_ghost);
for (; it != last; ++it) {
const Array<UInt> & connectivity = mesh.getConnectivity(*it, type_ghost);
if (connectivity.getSize() != 0) {
type = *it;
Vector<ElementType> types_igfem = FEEngine::getIGFEMElementTypes(type);
for (UInt i = 0; i < types_igfem.size(); ++i)
mesh.addConnectivityType(types_igfem(i), type_ghost);
}
}
}
getFEEngine("IGFEMFEEngine").initShapeFunctions(_not_ghost);
getFEEngine("IGFEMFEEngine").initShapeFunctions(_ghost);
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
void SolidMechanicsModelIGFEM::onElementsAdded(const Array<Element> & doubled_elements,
const NewElementsEvent & event) {
AKANTU_DEBUG_IN();
UInt nb_new_elements = doubled_elements.getSize();
Array<Element> element_list(nb_new_elements);
/// update shape functions
getFEEngine("IGFEMFEEngine").initShapeFunctions(_not_ghost);
getFEEngine("IGFEMFEEngine").initShapeFunctions(_ghost);
for (UInt e = 0; e < nb_new_elements; ++e)
element_list(e) = doubled_elements(e, 0);
SolidMechanicsModel::onElementsAdded(element_list, event);
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
void SolidMechanicsModelIGFEM::onElementsRemoved(const Array<Element> & element_list,
const ElementTypeMapArray<UInt> & new_numbering,
const RemovedElementsEvent & event) {
this->getFEEngine("IGFEMFEEngine").initShapeFunctions(_not_ghost);
this->getFEEngine("IGFEMFEEngine").initShapeFunctions(_ghost);
SolidMechanicsModel::onElementsRemoved(element_list, new_numbering, event);
}
/* -------------------------------------------------------------------------- */
void SolidMechanicsModelIGFEM::onNodesAdded(const Array<UInt> & nodes_list,
const NewNodesEvent & event) {
AKANTU_DEBUG_IN();
UInt nb_new_nodes = nodes_list.getSize();
UInt nb_nodes = mesh.getNbNodes();
if(real_displacement) real_displacement->resize(nb_nodes);
if(real_force) real_force->resize(nb_nodes);
if(real_residual) real_residual->resize(nb_nodes);
if(igfem_nodes) {igfem_nodes->resize(nb_nodes);
for (UInt n = 0; n < nb_new_nodes; ++n) {
UInt new_node = nodes_list(n);
for (UInt dim = 0; dim < this->spatial_dimension; ++dim)
(*igfem_nodes)(new_node, dim) = 0.;
}
}
SolidMechanicsModel::onNodesAdded(nodes_list, event);
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
void SolidMechanicsModelIGFEM::onNodesRemoved(const Array<UInt> & element_list,
const Array<UInt> & new_numbering,
const RemovedNodesEvent & event) {
if(real_displacement) mesh.removeNodesFromArray(*real_displacement, new_numbering);
if(real_force ) mesh.removeNodesFromArray(*real_force , new_numbering);
if(real_residual ) mesh.removeNodesFromArray(*real_residual , new_numbering);
if(igfem_nodes ) mesh.removeNodesFromArray(*igfem_nodes , new_numbering);
SolidMechanicsModel::onNodesRemoved(element_list, new_numbering, event);
}
/* -------------------------------------------------------------------------- */
void SolidMechanicsModelIGFEM::addDumpGroupFieldToDumper(const std::string & dumper_name,
const std::string & field_id,
const std::string & group_name,
const ElementKind & element_kind,
bool padding_flag) {
AKANTU_DEBUG_IN();
ElementKind _element_kind = element_kind;
if (dumper_name == "igfem elements") {
_element_kind = _ek_igfem;
}
SolidMechanicsModel::addDumpGroupFieldToDumper(dumper_name,
field_id,
group_name,
_element_kind,
padding_flag);
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
void SolidMechanicsModelIGFEM::onDump(){
this->flattenAllRegisteredInternals(_ek_igfem);
SolidMechanicsModel::onDump();
}
/* -------------------------------------------------------------------------- */
#ifdef AKANTU_USE_IOHELPER
dumper::Field * SolidMechanicsModelIGFEM
::createElementalField(const std::string & field_name,
const std::string & group_name,
bool padding_flag,
const UInt & spatial_dimension,
const ElementKind & kind) {
dumper::Field * field = NULL;
if (kind != _ek_igfem)
field = SolidMechanicsModel::createElementalField(field_name, group_name, padding_flag, spatial_dimension, kind);
else {
// if(field_name == "partitions")
// field = mesh.createElementalField<UInt, dumper::ElementPartitionField>(mesh.getConnectivities(),group_name,spatial_dimension,kind);
// else if(field_name == "material_index")
// field = mesh.createElementalField<UInt, Vector, dumper::ElementalField >(material_index,group_name,spatial_dimension,kind);
// else {
// this copy of field_name is used to compute derivated data such as
// strain and von mises stress that are based on grad_u and stress
std::string field_name_copy(field_name);
if (field_name == "strain"
|| field_name == "Green strain"
|| field_name == "principal strain"
|| field_name == "principal Green strain")
field_name_copy = "grad_u";
else if (field_name == "Von Mises stress")
field_name_copy = "stress";
bool is_internal = this->isInternal(field_name_copy,kind);
if (is_internal) {
ElementTypeMap<UInt> nb_data_per_elem = this->getInternalDataPerElem(field_name_copy,kind);
ElementTypeMapArray<Real> & internal_flat = this->flattenInternal(field_name_copy,kind);
field = mesh.createElementalField<Real, dumper::IGFEMInternalMaterialField>(internal_flat,
group_name,
spatial_dimension,kind,nb_data_per_elem);
// if (field_name == "strain"){
// dumper::ComputeStrain<false> * foo = new dumper::ComputeStrain<false>(*this);
// field = dumper::FieldComputeProxy::createFieldCompute(field,*foo);
// } else if (field_name == "Von Mises stress") {
// dumper::ComputeVonMisesStress * foo = new dumper::ComputeVonMisesStress(*this);
// field = dumper::FieldComputeProxy::createFieldCompute(field,*foo);
// } else if (field_name == "Green strain") {
// dumper::ComputeStrain<true> * foo = new dumper::ComputeStrain<true>(*this);
// field = dumper::FieldComputeProxy::createFieldCompute(field,*foo);
// } else if (field_name == "principal strain") {
// dumper::ComputePrincipalStrain<false> * foo = new dumper::ComputePrincipalStrain<false>(*this);
// field = dumper::FieldComputeProxy::createFieldCompute(field,*foo);
// } else if (field_name == "principal Green strain") {
// dumper::ComputePrincipalStrain<true> * foo = new dumper::ComputePrincipalStrain<true>(*this);
// field = dumper::FieldComputeProxy::createFieldCompute(field,*foo);
// }
//treat the paddings
// if (padding_flag){
// if (field_name == "stress"){
// if (spatial_dimension == 2) {
// dumper::StressPadder<2> * foo = new dumper::StressPadder<2>(*this);
// field = dumper::FieldComputeProxy::createFieldCompute(field,*foo);
// }
// } else if (field_name == "strain" || field_name == "Green strain"){
// if (spatial_dimension == 2) {
// dumper::StrainPadder<2> * foo = new dumper::StrainPadder<2>(*this);
// field = dumper::FieldComputeProxy::createFieldCompute(field,*foo);
// }
// }
// }
// homogenize the field
dumper::ComputeFunctorInterface * foo =
dumper::HomogenizerProxy::createHomogenizer(*field);
field = dumper::FieldComputeProxy::createFieldCompute(field,*foo);
}
}
// }
return field;
}
#endif
/* -------------------------------------------------------------------------- */
__END_AKANTU__

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