Evaluate stress at integration points. More...

#include <users_modules/fracture_mechanics/src/MWLS.hpp>

Inheritance diagram for FractureMechanics::MWLSApprox::OpMWLSStressAndErrorsAtGaussPts:

Collaboration diagram for FractureMechanics::MWLSApprox::OpMWLSStressAndErrorsAtGaussPts:

Public Member Functions
	OpMWLSStressAndErrorsAtGaussPts (boost::shared_ptr< MWLSApprox > mwls_approx, const std::string stress_tag_name, MoFEM::Interface &m_field)

Public Member Functions inherited from MoFEM::VolumeElementForcesAndSourcesCore::UserDataOperator
int	getNumNodes ()
	get element number of nodes More...

const EntityHandle *	getConn ()
	get element connectivity More...

double	getVolume () const
	element volume (linear geometry) More...

double &	getVolume ()
	element volume (linear geometry) More...

FTensor::Tensor2< double *, 3, 3 > &	getJac ()
	get element Jacobian More...

FTensor::Tensor2< double *, 3, 3 > &	getInvJac ()
	get element inverse Jacobian More...

VectorDouble &	getCoords ()
	nodal coordinates More...

VolumeElementForcesAndSourcesCore *	getVolumeFE () const
	return pointer to Generic Volume Finite Element object More...

Public Member Functions inherited from MoFEM::ForcesAndSourcesCore::UserDataOperator
	UserDataOperator (const FieldSpace space, const char type=OPSPACE, const bool symm=true)

	UserDataOperator (const std::string field_name, const char type, const bool symm=true)

	UserDataOperator (const std::string row_field_name, const std::string col_field_name, const char type, const bool symm=true)

boost::shared_ptr< const NumeredEntFiniteElement >	getNumeredEntFiniteElementPtr () const
	Return raw pointer to NumeredEntFiniteElement. More...

EntityHandle	getFEEntityHandle () const
	Return finite element entity handle. More...

int	getFEDim () const
	Get dimension of finite element. More...

EntityType	getFEType () const
	Get dimension of finite element. More...

boost::weak_ptr< SideNumber >	getSideNumberPtr (const int side_number, const EntityType type)
	Get the side number pointer. More...

EntityHandle	getSideEntity (const int side_number, const EntityType type)
	Get the side entity. More...

int	getNumberOfNodesOnElement () const
	Get the number of nodes on finite element. More...

MoFEMErrorCode	getProblemRowIndices (const std::string filed_name, const EntityType type, const int side, VectorInt &indices) const
	Get row indices. More...

MoFEMErrorCode	getProblemColIndices (const std::string filed_name, const EntityType type, const int side, VectorInt &indices) const
	Get col indices. More...

const FEMethod *	getFEMethod () const
	Return raw pointer to Finite Element Method object. More...

int	getOpType () const
	Get operator types. More...

void	setOpType (const OpType type)
	Set operator type. More...

void	addOpType (const OpType type)
	Add operator type. More...

int	getNinTheLoop () const
	get number of finite element in the loop More...

int	getLoopSize () const
	get size of elements in the loop More...

std::string	getFEName () const
	Get name of the element. More...

ForcesAndSourcesCore *	getPtrFE () const

ForcesAndSourcesCore *	getSidePtrFE () const

ForcesAndSourcesCore *	getRefinePtrFE () const

const PetscData::Switches &	getDataCtx () const

const KspMethod::KSPContext	getKSPCtx () const

const SnesMethod::SNESContext	getSNESCtx () const

const TSMethod::TSContext	getTSCtx () const

Vec	getKSPf () const

Mat	getKSPA () const

Mat	getKSPB () const

Vec	getSNESf () const

Vec	getSNESx () const

Mat	getSNESA () const

Mat	getSNESB () const

Vec	getTSu () const

Vec	getTSu_t () const

Vec	getTSu_tt () const

Vec	getTSf () const

Mat	getTSA () const

Mat	getTSB () const

int	getTSstep () const

double	getTStime () const

double	getTStimeStep () const

double	getTSa () const

double	getTSaa () const

MatrixDouble &	getGaussPts ()
	matrix of integration (Gauss) points for Volume Element More...

auto	getFTensor0IntegrationWeight ()
	Get integration weights. More...

MatrixDouble &	getCoordsAtGaussPts ()
	Gauss points and weight, matrix (nb. of points x 3) More...

auto	getFTensor1CoordsAtGaussPts ()
	Get coordinates at integration points assuming linear geometry. More...

double	getMeasure () const
	get measure of element More...

double &	getMeasure ()
	get measure of element More...

MoFEMErrorCode	loopSide (const string &fe_name, ForcesAndSourcesCore side_fe, const size_t dim, const EntityHandle ent_for_side=0, const int verb=QUIET, const LogManager::SeverityLevel sev=Sev::noisy, AdjCache adj_cache=nullptr)
	User calls this function to loop over elements on the side of face. This function calls finite element with its operator to do calculations. More...

MoFEMErrorCode	loopThis (const string &fe_name, ForcesAndSourcesCore *this_fe, const int verb=QUIET, const LogManager::SeverityLevel sev=Sev::noisy)
	User calls this function to loop over the same element using a different set of integration points. This function calls finite element with its operator to do calculations. More...

MoFEMErrorCode	loopParent (const string &fe_name, ForcesAndSourcesCore *parent_fe, const int verb=QUIET, const LogManager::SeverityLevel sev=Sev::noisy)
	User calls this function to loop over parent elements. This function calls finite element with its operator to do calculations. More...

MoFEMErrorCode	loopChildren (const string &fe_name, ForcesAndSourcesCore *child_fe, const int verb=QUIET, const LogManager::SeverityLevel sev=Sev::noisy)
	User calls this function to loop over parent elements. This function calls finite element with its operator to do calculations. More...

Public Member Functions inherited from MoFEM::DataOperator
	DataOperator (const bool symm=true)

virtual	~DataOperator ()=default

virtual MoFEMErrorCode	doWork (int row_side, int col_side, EntityType row_type, EntityType col_type, EntitiesFieldData::EntData &row_data, EntitiesFieldData::EntData &col_data)
	Operator for bi-linear form, usually to calculate values on left hand side. More...

virtual MoFEMErrorCode	opLhs (EntitiesFieldData &row_data, EntitiesFieldData &col_data)

virtual MoFEMErrorCode	doWork (int side, EntityType type, EntitiesFieldData::EntData &data)
	Operator for linear form, usually to calculate values on right hand side. More...

virtual MoFEMErrorCode	opRhs (EntitiesFieldData &data, const bool error_if_no_base=false)

bool	getSymm () const
	Get if operator uses symmetry of DOFs or not. More...

void	setSymm ()
	set if operator is executed taking in account symmetry More...

void	unSetSymm ()
	unset if operator is executed for non symmetric problem More...

Public Attributes
std::string	stressTagName

boost::shared_ptr< MWLSApprox >	mwlsApproxPtr

MoFEM::Interface &	mField

Public Attributes inherited from MoFEM::ForcesAndSourcesCore::UserDataOperator
char	opType

std::string	rowFieldName

std::string	colFieldName

FieldSpace	sPace

Public Attributes inherited from MoFEM::DataOperator
DoWorkLhsHookFunType	doWorkLhsHook

DoWorkRhsHookFunType	doWorkRhsHook

bool	sYmm
	If true assume that matrix is symmetric structure. More...

std::array< bool, MBMAXTYPE >	doEntities
	If true operator is executed for entity. More...

bool &	doVertices
	\deprectaed If false skip vertices More...

bool &	doEdges
	\deprectaed If false skip edges More...

bool &	doQuads
	\deprectaed More...

bool &	doTris
	\deprectaed More...

bool &	doTets
	\deprectaed More...

bool &	doPrisms
	\deprectaed More...

Protected Member Functions
MoFEMErrorCode	doWork (int side, EntityType type, DataForcesAndSourcesCore::EntData &data)

Protected Member Functions inherited from MoFEM::VolumeElementForcesAndSourcesCore::UserDataOperator
MoFEMErrorCode	setPtrFE (ForcesAndSourcesCore *ptr)

Additional Inherited Members
Public Types inherited from MoFEM::ForcesAndSourcesCore::UserDataOperator
enum	OpType { OPROW = 1 << 0, OPCOL = 1 << 1, OPROWCOL = 1 << 2, OPSPACE = 1 << 3, OPLAST = 1 << 3 }
	Controls loop over entities on element. More...

using	AdjCache = std::map< EntityHandle, std::vector< boost::weak_ptr< NumeredEntFiniteElement > >>

Public Types inherited from MoFEM::DataOperator
using	DoWorkLhsHookFunType = boost::function< MoFEMErrorCode(DataOperator *op_ptr, int row_side, int col_side, EntityType row_type, EntityType col_type, EntitiesFieldData::EntData &row_data, EntitiesFieldData::EntData &col_data)>

using	DoWorkRhsHookFunType = boost::function< MoFEMErrorCode(DataOperator *op_ptr, int side, EntityType type, EntitiesFieldData::EntData &data)>

Static Public Attributes inherited from MoFEM::ForcesAndSourcesCore::UserDataOperator
static const char *const	OpTypeNames []

Protected Attributes inherited from MoFEM::ForcesAndSourcesCore::UserDataOperator
ForcesAndSourcesCore *	ptrFE

Detailed Description

Evaluate stress at integration points.

Definition at line 454 of file MWLS.hpp.

Constructor & Destructor Documentation

◆ OpMWLSStressAndErrorsAtGaussPts()

FractureMechanics::MWLSApprox::OpMWLSStressAndErrorsAtGaussPts::OpMWLSStressAndErrorsAtGaussPts	(	boost::shared_ptr< MWLSApprox >	mwls_approx,
		const std::string	stress_tag_name,
		MoFEM::Interface &	m_field
	)

inline

Definition at line 460 of file MWLS.hpp.

         : VolumeElementForcesAndSourcesCore::UserDataOperator(
               "SPATIAL_POSITION", UserDataOperator::OPROW),
           mwlsApproxPtr(mwls_approx), stressTagName(stress_tag_name),
           mField(m_field) {}

Member Function Documentation

◆ doWork()

MoFEMErrorCode FractureMechanics::MWLSApprox::OpMWLSStressAndErrorsAtGaussPts::doWork	(	int	side,
		EntityType	type,
		DataForcesAndSourcesCore::EntData &	data
	)

protected

Definition at line 1685 of file MWLS.cpp.

                                                                       {
   MoFEMFunctionBegin;
  
   if (type != MBVERTEX)
     MoFEMFunctionReturnHot(0);
  
   FTensor::Index<'i', 3> i;
   FTensor::Index<'j', 3> j;
  
   auto &mwls_approx = *mwlsApproxPtr;
   if (mwls_approx.tetsInBlock.find(getFEEntityHandle()) ==
       mwls_approx.tetsInBlock.end()) {
     MoFEMFunctionReturnHot(0);
   }
  
   const int nb_gauss_pts = data.getN().size1();
   // SIXX 0 (00) SIYY 1 (11) SIZZ 2 (22) SIXY 3 (01) SIXZ 4 (02) SIYZ 5 (12)
   // T* d00, T* d01, T* d02, T* d11, T* d12, T* d22
   MatrixDouble &stress = mwlsApproxPtr->stressAtGaussPts;
   FTensor::Tensor2_symmetric<FTensor::PackPtr<double *, 1>, 3> t_stress(
       &stress(0, 0), &stress(3, 0), &stress(4, 0), &stress(1, 0), &stress(5, 0),
       &stress(2, 0));
  
   auto get_symm_tensor = [](auto &m) {
     FTensor::Tensor2_symmetric<double *, 3> t(
  
         &m[0], &m[3], &m[4],
  
         &m[1], &m[5],
  
         &m[2]
  
     );
     return t;
   };
  
   auto get_stress_nrm2 = [i, j](auto &t_s) { return t_s(i, j) * t_s(i, j); };
  
   VectorDouble val_at_nearest_influence_node;
   val_at_nearest_influence_node.resize(9, false);
   val_at_nearest_influence_node.clear();
  
   Tag th;
   CHKERR mwls_approx.mwlsMoab.tag_get_handle(stressTagName.c_str(), th);
  
   // This is nasty pice of code, but good for tests. It test value in the
   // nearest mode. We should use base functions to evaluate stress at
   // arbitrary point. However this is good enough when projected mesh and
   // approximated mesh is the same. That is used for tests.
   CHKERR mwls_approx.mwlsMoab.tag_get_data(
       th, &mwls_approx.nearestInfluenceNode, 1,
       &*val_at_nearest_influence_node.data().begin());
   auto t_stress_at_nearset_node =
       get_symm_tensor(val_at_nearest_influence_node);
  
   auto t_w = getFTensor0IntegrationWeight();
   auto vol = getVolume();
  
   double int_stress = vol * get_stress_nrm2(t_stress_at_nearset_node);
   double stress_error = 0;
   double hydrostatic_error = 0;
   double deviatoric_error = 0;
  
   for (int gg = 0; gg != nb_gauss_pts; ++gg) {
     const double a = t_w * vol;
  
     FTensor::Tensor2_symmetric<double, 3> t_diff_stress;
     t_diff_stress(i, j) = t_stress(i, j) - t_stress_at_nearset_node(i, j);
     stress_error += a * get_stress_nrm2(t_diff_stress);
  
     constexpr auto t_kd = FTensor::Kronecker_Delta_symmetric<int>();
     // calculate error of the hydro static part of the stress
     const double hydrostatic_error_at_gg =
         (t_kd(i, j) * t_diff_stress(i, j)) / 3.;
     hydrostatic_error += a * hydrostatic_error_at_gg * hydrostatic_error_at_gg;
  
     // calculate error of the deviator part of the stress
     auto t_dev_error = FTensor::Tensor2_symmetric<double, 3>();
     t_dev_error(i, j) = t_diff_stress(i, j) - hydrostatic_error * t_kd(i, j);
     deviatoric_error += a * get_stress_nrm2(t_dev_error);
  
     ++t_w;
     ++t_stress;
   }
  
   auto create_tag = [&](auto name) {
     constexpr double zero = 0;
     Tag tag;
     CHKERR mField.get_moab().tag_get_handle(
         name, 1, MB_TYPE_DOUBLE, tag, MB_TAG_CREAT | MB_TAG_SPARSE, &zero);
     return tag;
   };
  
   auto save_val = [&](auto &&tag, auto &val) {
     MoFEMFunctionBegin;
     auto const fe_ent = getNumeredEntFiniteElementPtr()->getEnt();
     CHKERR mField.get_moab().tag_set_data(tag, &fe_ent, 1, &val);
     MoFEMFunctionReturn(0);
   };
  
   stress_error /= int_stress;
   hydrostatic_error /= int_stress;
   deviatoric_error /= int_stress;
   stress_error = sqrt(stress_error);
   hydrostatic_error = sqrt(hydrostatic_error);
   deviatoric_error = sqrt(deviatoric_error);
  
   CHKERR save_val(create_tag("INT_STRESS_ERROR"), stress_error);
   CHKERR save_val(create_tag("INT_HYDROSTATIC_ERROR"), hydrostatic_error);
   CHKERR save_val(create_tag("INT_DEVIATORIC_ERROR"), deviatoric_error);
  
   MoFEMFunctionReturn(0);
 }

Member Data Documentation

◆ mField

MoFEM::Interface& FractureMechanics::MWLSApprox::OpMWLSStressAndErrorsAtGaussPts::mField

Definition at line 458 of file MWLS.hpp.

◆ mwlsApproxPtr

boost::shared_ptr<MWLSApprox> FractureMechanics::MWLSApprox::OpMWLSStressAndErrorsAtGaussPts::mwlsApproxPtr

Definition at line 457 of file MWLS.hpp.

◆ stressTagName

std::string FractureMechanics::MWLSApprox::OpMWLSStressAndErrorsAtGaussPts::stressTagName

Definition at line 456 of file MWLS.hpp.

The documentation for this struct was generated from the following files:

users_modules/fracture_mechanics/src/MWLS.hpp
users_modules/fracture_mechanics/src/impl/MWLS.cpp

Public Member Functions

Public Attributes

Protected Member Functions

Additional Inherited Members