oofem::BTSigTerm Class Reference

A Linear momentum balance equation term ($B^T\sigma(u)$). More...

#include <termlibrary.h>

Inheritance diagram for oofem::BTSigTerm:

Collaboration diagram for oofem::BTSigTerm:

Public Member Functions
	BTSigTerm (const Variable *testField, const Variable *unknownField)
void	evaluate_lin (FloatMatrix &answer, MPElement &e, GaussPoint *gp, TimeStep *tstep) const override
	Evaluates the linearization of $B^T\sigma(u)$, i.e. $B^TDBu$.
void	evaluate (FloatArray &, MPElement &cell, GaussPoint *gp, TimeStep *tstep) const override
	Evaluates Internal forces vector, i.e. $b^T\sigma(u)$.
void	getDimensions (Element &cell) const override
void	initializeCell (Element &cell) const override
Public Member Functions inherited from oofem::Term
	Term ()
	Term (const Variable *testField, const Variable *unknownField, MaterialMode m=MaterialMode::_Unknown)
virtual IntegrationRule *	giveElementIntegrationRule (Element *e) const
virtual void	initializeFrom (InputRecord &ir, EngngModel *problem)

Protected Member Functions
void	grad (FloatMatrix &answer, const Variable *v, const FEInterpolation *interpol, const Element &cell, const FloatArray &coords, const MaterialMode mmode) const
	Evaluates B matrix; i.e. $LN$ where $L$ is operator matrix and $N$ is interpolation matrix of unknowns.

Additional Inherited Members
Public Attributes inherited from oofem::Term
const Variable *	field
const Variable *	testField
MaterialMode	mode

Detailed Description

A Linear momentum balance equation term ($B^T\sigma(u)$).

Definition at line 52 of file termlibrary.h.

Constructor & Destructor Documentation

BTSigTerm()

oofem::BTSigTerm::BTSigTerm	(	const Variable *	testField,
		const Variable *	unknownField )

References oofem::Term::testField.

Referenced by oofem::TMBTSigTerm::TMBTSigTerm().

Member Function Documentation

evaluate()

void oofem::BTSigTerm::evaluate ( FloatArray & answer, MPElement & cell, GaussPoint * gp, TimeStep * tstep ) const

overridevirtual

Evaluates Internal forces vector, i.e. $b^T\sigma(u)$.

Parameters

cell
coords

Implements oofem::Term.

Reimplemented in oofem::InternalTMFluxSourceTerm, and oofem::TMBTSigTerm.

Definition at line 63 of file termlibrary.C.

References oofem::FloatArray::beProductOf(), oofem::FloatArray::beTProductOf(), evaluate(), oofem::Term::field, oofem::MPElement::getUnknownVector(), oofem::Material::giveCharacteristicVector(), oofem::Element::giveCrossSection(), oofem::CrossSection::giveMaterial(), oofem::GaussPoint::giveMaterialMode(), oofem::GaussPoint::giveNaturalCoordinates(), and grad().

Referenced by evaluate().

evaluate_lin()

void oofem::BTSigTerm::evaluate_lin ( FloatMatrix & answer, MPElement & e, GaussPoint * gp, TimeStep * tstep ) const

overridevirtual

Evaluates the linearization of $B^T\sigma(u)$, i.e. $B^TDBu$.

Parameters

answer
e
coords

Implements oofem::Term.

Definition at line 54 of file termlibrary.C.

References oofem::FloatMatrix::beProductOf(), oofem::FloatMatrix::beTProductOf(), evaluate_lin(), oofem::Term::field, oofem::Material::giveCharacteristicMatrix(), oofem::Element::giveCrossSection(), oofem::CrossSection::giveMaterial(), oofem::GaussPoint::giveMaterialMode(), oofem::GaussPoint::giveNaturalCoordinates(), and grad().

Referenced by evaluate_lin().

getDimensions()

void oofem::BTSigTerm::getDimensions ( Element & cell ) const

overridevirtual

Implements oofem::Term.

Definition at line 73 of file termlibrary.C.

References getDimensions().

Referenced by getDimensions().

grad()

void oofem::BTSigTerm::grad ( FloatMatrix & answer, const Variable * v, const FEInterpolation * interpol, const Element & cell, const FloatArray & coords, const MaterialMode mmode ) const

protected

Evaluates B matrix; i.e. $LN$ where $L$ is operator matrix and $N$ is interpolation matrix of unknowns.

Parameters

answer	B matrix
v
interpol
cell
coords

Definition at line 80 of file termlibrary.C.

References oofem::FEInterpolation::evaldNdx(), oofem::Element::giveGeometryType(), oofem::FEInterpolation::giveNumberOfNodes(), grad(), oofem::FloatMatrix::resize(), and oofem::Variable::size.

Referenced by oofem::TMBTSigTerm::computeTMgeneralizedStrain(), evaluate(), evaluate_lin(), and grad().

initializeCell()

void oofem::BTSigTerm::initializeCell ( Element & cell ) const

overridevirtual

Implements oofem::Term.

Definition at line 78 of file termlibrary.C.

References initializeCell().

Referenced by initializeCell().

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

• termlibrary.h
• termlibrary.C