#include <MechanicsLinearElement.h>

Inheritance diagram for AMP::Operator::MechanicsLinearElement:

[legend]

Public Member Functions
void	apply () override

void	computeStressAndStrain (const std::vector< double > &dispVec, std::vector< double > &stressVec, std::vector< double > &strainVec)

unsigned int	getNumberOfGaussPoints ()

void	initializeForCurrentElement (const libMesh::Elem *elem, std::shared_ptr< MechanicsMaterialModel > materialModel)

	MechanicsLinearElement (std::shared_ptr< const ElementOperationParameters > params)
	Constructor.

void	printStressAndStrain (FILE *fp, const std::vector< double > &dispVec)

void	setElementStiffnessMatrix (std::vector< std::vector< double > > &elementStiffnessMatrix)

virtual	~MechanicsLinearElement ()
	Destructor.

Protected Member Functions
void	apply_Normal ()

void	apply_Reduced ()

Protected Attributes
const std::vector< std::vector< libMesh::RealGradient > > *	d_dphi

const libMesh::Elem *	d_elem

std::vector< std::vector< double > > *	d_elementStiffnessMatrix

std::shared_ptr< libMesh::FEBase >	d_fe

std::shared_ptr< libMesh::FEType >	d_feType

int	d_iDebugPrintInfoLevel

const std::vector< libMesh::Real > *	d_JxW

std::shared_ptr< MechanicsMaterialModel >	d_materialModel

std::shared_ptr< libMesh::QBase >	d_qrule

bool	d_useFlanaganTaylorElem

bool	d_useJaumannRate

bool	d_useReducedIntegration

const std::vector< libMesh::Point > *	d_xyz

Detailed Description

A class for representing the element level computation performed within a linear finite element operator for modelling solid mechanics. The linear operator could either be a linear elasticity operator or it could be the jacobian of a nonlinear elasticity/elasto-plasticity operator.

Definition at line 18 of file MechanicsLinearElement.h.

Constructor & Destructor Documentation

◆ MechanicsLinearElement()

AMP::Operator::MechanicsLinearElement::MechanicsLinearElement ( std::shared_ptr< const ElementOperationParameters > params )

inlineexplicit

Constructor.

Definition at line 22 of file MechanicsLinearElement.h.

References AMP_INSIST, d_dphi, AMP::Operator::MechanicsElement::d_fe, d_JxW, AMP::Operator::MechanicsElement::d_useJaumannRate, and d_xyz.

◆ ~MechanicsLinearElement()

virtual AMP::Operator::MechanicsLinearElement::~MechanicsLinearElement ( )

inlinevirtual

Destructor.

Definition at line 33 of file MechanicsLinearElement.h.

Member Function Documentation

◆ apply()

void AMP::Operator::MechanicsLinearElement::apply ( )

inlineoverridevirtual

Element stiffness matrix computation.

Implements AMP::Operator::ElementOperation.

Definition at line 48 of file MechanicsLinearElement.h.

References apply_Normal(), apply_Reduced(), and AMP::Operator::MechanicsElement::d_useReducedIntegration.

◆ apply_Normal()

void AMP::Operator::MechanicsLinearElement::apply_Normal ( )

protected

Element stiffness matrix computation using normal integration scheme.

Referenced by apply().

◆ apply_Reduced()

void AMP::Operator::MechanicsLinearElement::apply_Reduced ( )

protected

Element stiffness matrix computation using reduced integration scheme.

Referenced by apply().

◆ computeStressAndStrain()

void AMP::Operator::MechanicsLinearElement::computeStressAndStrain	(	const std::vector< double > &	dispVec,
		std::vector< double > &	stressVec,
		std::vector< double > &	strainVec
	)

Computes the stress and strain values at the Gauss points within the current element The 6 components of stress and strain at each Gauss point are arranged in the order: xx, yy, zz, yz, xz and xy.

Parameters

[in]	dispVec	Displacements at the nodes of the current element.
[out]	stressVec	Stresses at the Gauss points of the current element.
[out]	strainVec	Strains at the Gauss points of the current element.

◆ getNumberOfGaussPoints()

unsigned int AMP::Operator::MechanicsElement::getNumberOfGaussPoints ( )

inlineinherited

Returns: Number of gauss quadrature points per element

Definition at line 72 of file MechanicsElement.h.

References AMP::Operator::MechanicsElement::d_qrule.

◆ initializeForCurrentElement()

void AMP::Operator::MechanicsElement::initializeForCurrentElement	(	const libMesh::Elem *	elem,
		std::shared_ptr< MechanicsMaterialModel >	materialModel
	)

inlineinherited

This function is used by the Linear and Nonlinear mechanics FEOperators to pass the current element and material model to this class during the finite element assembly operation.

Parameters

[in]	elem	Pointer to the current element within a finite element assembly.
[in]	materialModel	Shared pointer to the mechanics material model used in the current element.

Definition at line 62 of file MechanicsElement.h.

References AMP::Operator::MechanicsElement::d_elem, and AMP::Operator::MechanicsElement::d_materialModel.

◆ printStressAndStrain()

void AMP::Operator::MechanicsLinearElement::printStressAndStrain	(	FILE *	fp,
		const std::vector< double > &	dispVec
	)

Writes the stess and strain values at the Gauss points within the current element to the file. The 6 components of stress and strain at each Gauss point are arranged in the order: xx, yy, zz, yz, xz and xy.

Parameters

[in]	fp	File pointer
[in]	dispVec	Displacements at the nodes of the current element.

◆ setElementStiffnessMatrix()

void AMP::Operator::MechanicsLinearElement::setElementStiffnessMatrix ( std::vector< std::vector< double > > & elementStiffnessMatrix )

inline

This function is used by MechanicsLinearFEOperator to pass the address of the element stiffness matrix to this class.

Parameters

[in] elementStiffnessMatrix Element stiffness matrix

Definition at line 40 of file MechanicsLinearElement.h.

References d_elementStiffnessMatrix.

Member Data Documentation

◆ d_dphi

const std::vector<std::vector<libMesh::RealGradient> >* AMP::Operator::MechanicsLinearElement::d_dphi

protected

Spatial Derivatives of the shape functions at the Gauss points in the current element.

Definition at line 93 of file MechanicsLinearElement.h.

Referenced by MechanicsLinearElement().

◆ d_elem

const libMesh::Elem* AMP::Operator::MechanicsElement::d_elem

protectedinherited

Pointer to the current element within the finite element assembly.

Definition at line 90 of file MechanicsElement.h.

Referenced by AMP::Operator::MechanicsElement::initializeForCurrentElement().

◆ d_elementStiffnessMatrix

std::vector<std::vector<double> >* AMP::Operator::MechanicsLinearElement::d_elementStiffnessMatrix

protected

Element stiffness matrix.

Definition at line 99 of file MechanicsLinearElement.h.

Referenced by setElementStiffnessMatrix().

◆ d_fe

std::shared_ptr<libMesh::FEBase> AMP::Operator::MechanicsElement::d_fe

protectedinherited

Finite element shape functions.

Definition at line 84 of file MechanicsElement.h.

Referenced by MechanicsLinearElement(), AMP::Operator::MechanicsLinearUpdatedLagrangianElement::MechanicsLinearUpdatedLagrangianElement(), AMP::Operator::MechanicsNonlinearElement::MechanicsNonlinearElement(), and AMP::Operator::MechanicsNonlinearUpdatedLagrangianElement::MechanicsNonlinearUpdatedLagrangianElement().

◆ d_feType

std::shared_ptr<libMesh::FEType> AMP::Operator::MechanicsElement::d_feType

protectedinherited

Type of polynomial used for the finite element shape functions. This includes both the polynomial order: First order/Second order etc. and polynomial family: Lagrange/Hierarchic/Hermite etc.

Definition at line 78 of file MechanicsElement.h.

◆ d_iDebugPrintInfoLevel

int AMP::Operator::MechanicsElement::d_iDebugPrintInfoLevel

protectedinherited

< Inside Green-Naghdi stress-rate whether to use Flanagan Taylor stress-srate or not.

Definition at line 105 of file MechanicsElement.h.

◆ d_JxW

const std::vector<libMesh::Real>* AMP::Operator::MechanicsLinearElement::d_JxW

protected

Product of the determinant of Jacobian and the quadrature weight at the Gauss points in the current element.

Definition at line 89 of file MechanicsLinearElement.h.

Referenced by MechanicsLinearElement().

◆ d_materialModel

std::shared_ptr<MechanicsMaterialModel> AMP::Operator::MechanicsElement::d_materialModel

protectedinherited

Shared pointer to the mechanics material model used in the current element.

Definition at line 93 of file MechanicsElement.h.

Referenced by AMP::Operator::MechanicsElement::initializeForCurrentElement().

◆ d_qrule

std::shared_ptr<libMesh::QBase> AMP::Operator::MechanicsElement::d_qrule

protectedinherited

Quadtrature rule used for numerical integration.

Definition at line 87 of file MechanicsElement.h.

Referenced by AMP::Operator::MechanicsElement::getNumberOfGaussPoints().

◆ d_useFlanaganTaylorElem

bool AMP::Operator::MechanicsElement::d_useFlanaganTaylorElem

protectedinherited

Definition at line 101 of file MechanicsElement.h.

Referenced by AMP::Operator::MechanicsNonlinearUpdatedLagrangianElement::resetElementInfo().

◆ d_useJaumannRate

bool AMP::Operator::MechanicsElement::d_useJaumannRate

protectedinherited

A flag that checks whether to use Jaumann Rate in Updated Lagrangian formulation or not.

Definition at line 97 of file MechanicsElement.h.

Referenced by MechanicsLinearElement(), AMP::Operator::MechanicsNonlinearElement::MechanicsNonlinearElement(), and AMP::Operator::MechanicsNonlinearUpdatedLagrangianElement::resetElementInfo().

◆ d_useReducedIntegration

bool AMP::Operator::MechanicsElement::d_useReducedIntegration

protectedinherited

A flag that is true if reduced integration scheme is used and false otherwise.

Definition at line 75 of file MechanicsElement.h.

Referenced by apply(), AMP::Operator::MechanicsLinearUpdatedLagrangianElement::apply(), AMP::Operator::MechanicsNonlinearElement::apply(), and AMP::Operator::MechanicsNonlinearUpdatedLagrangianElement::apply().

◆ d_xyz

const std::vector<libMesh::Point>* AMP::Operator::MechanicsLinearElement::d_xyz

protected

Locations of the Gauss points in the current element.

Definition at line 97 of file MechanicsLinearElement.h.

Referenced by MechanicsLinearElement().

The documentation for this class was generated from the following file:

src/operators/mechanics/MechanicsLinearElement.h

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ MechanicsLinearElement()

◆ ~MechanicsLinearElement()

Member Function Documentation

◆ apply()

◆ apply_Normal()

◆ apply_Reduced()

◆ computeStressAndStrain()

◆ getNumberOfGaussPoints()

◆ initializeForCurrentElement()

◆ printStressAndStrain()

◆ setElementStiffnessMatrix()

Member Data Documentation

◆ d_dphi

◆ d_elem

◆ d_elementStiffnessMatrix

◆ d_fe

◆ d_feType

◆ d_iDebugPrintInfoLevel

◆ d_JxW

◆ d_materialModel

◆ d_qrule

◆ d_useFlanaganTaylorElem

◆ d_useJaumannRate

◆ d_useReducedIntegration

◆ d_xyz