Applies a mean deviatoric shear rate and pressure (Neumann boundary condition). More...

#include <mixedgradientpressureneumann.h>

Inheritance diagram for oofem::MixedGradientPressureNeumann:

Collaboration diagram for oofem::MixedGradientPressureNeumann:

Public Member Functions
	MixedGradientPressureNeumann (int n, Domain *d)
	Creates boundary condition with given number, belonging to given domain. More...

virtual	~MixedGradientPressureNeumann ()
	Destructor. More...

virtual int	giveNumberOfInternalDofManagers ()
	Returns the number of internal DOF managers (=2). More...

virtual DofManager *	giveInternalDofManager (int i)
	Returns the volumetric DOF manager for i == 1, and the deviatoric manager for i == 2. More...

virtual bcType	giveType () const
	Not relevant for this boundary condition. More...

virtual IRResultType	initializeFrom (InputRecord *ir)
	Initializes receiver according to object description stored in input record. More...

virtual void	giveInputRecord (DynamicInputRecord &input)
	Setups the input record string of receiver. More...

virtual void	scale (double s)
	Scales the receiver according to given value. More...

virtual void	computeFields (FloatArray &sigmaDev, double &vol, TimeStep *tStep)
	Computes the homogenized fields through sensitivity analysis. More...

virtual void	computeTangents (FloatMatrix &Ed, FloatArray &Ep, FloatArray &Cd, double &Cp, TimeStep *tStep)
	Computes the macroscopic tangents through sensitivity analysis. More...

virtual void	setPrescribedPressure (double p)
	Set prescribed pressure. More...

virtual void	setPrescribedDeviatoricGradientFromVoigt (const FloatArray &ddev)
	Sets the prescribed tensor from the matrix from given Voigt notation. More...

virtual void	assembleVector (FloatArray &answer, TimeStep tStep, CharType type, ValueModeType mode, const UnknownNumberingScheme &s, FloatArray eNorm=NULL)
	Assembles B.C. More...

virtual void	assemble (SparseMtrx &answer, TimeStep *tStep, CharType type, const UnknownNumberingScheme &r_s, const UnknownNumberingScheme &c_s, double scale=1.0)
	Assembles B.C. More...

virtual void	giveLocationArrays (std::vector< IntArray > &rows, std::vector< IntArray > &cols, CharType type, const UnknownNumberingScheme &r_s, const UnknownNumberingScheme &c_s)
	Gives a list of location arrays that will be assembled. More...

virtual const char *	giveClassName () const

virtual const char *	giveInputRecordName () const

Public Member Functions inherited from oofem::MixedGradientPressureBC
	MixedGradientPressureBC (int n, Domain *d)
	Creates boundary condition with given number, belonging to given domain. More...

virtual	~MixedGradientPressureBC ()
	Destructor. More...

double	domainSize ()
	Computes the size (including pores) by surface integral over the domain. More...

Public Member Functions inherited from oofem::ActiveBoundaryCondition
	ActiveBoundaryCondition (int n, Domain *d)
	Constructor. More...

virtual	~ActiveBoundaryCondition ()
	Destructor. More...

virtual void	addElementSide (int elem, int side)
	Adds element for active boundary condition. More...

virtual bool	requiresActiveDofs ()
	Checks to see if active boundary condition requires special DOFs. More...

virtual bool	isPrimaryDof (ActiveDof *dof)
	Checks to see if the dof is a primary DOF. More...

virtual double	giveBcValue (Dof dof, ValueModeType mode, TimeStep tStep)
	Returns the prescribed value of a dof (if any). More...

virtual bool	hasBc (Dof dof, TimeStep tStep)
	Returns the prescribed value of a dof (if any). More...

virtual int	giveNumberOfMasterDofs (ActiveDof *dof)
	Allows for active boundary conditions to handle their own special DOF. More...

virtual Dof *	giveMasterDof (ActiveDof *dof, int mdof)
	Give the pointer to master dof belonging to active DOF. More...

virtual void	computeDofTransformation (ActiveDof *dof, FloatArray &masterContribs)

virtual double	giveUnknown (PrimaryField &field, ValueModeType mode, TimeStep tStep, ActiveDof dof)
	Computes the value of the dof. More...

virtual double	giveUnknown (ValueModeType mode, TimeStep tStep, ActiveDof dof)
	Computes the value of the dof. More...

Public Member Functions inherited from oofem::GeneralBoundaryCondition
	GeneralBoundaryCondition (int n, Domain *d)
	Constructor. More...

virtual	~GeneralBoundaryCondition ()
	Destructor. More...

int	giveSetNumber ()
	Gives the set number which boundary condition is applied to. More...

Function *	giveTimeFunction ()

virtual bcValType	giveBCValType () const
	Returns receiver load type. More...

virtual bool	isImposed (TimeStep *tStep)
	Returns nonzero if receiver representing BC is imposed at given time, otherwise returns zero. More...

virtual const IntArray &	giveDofIDs () const
	Array with default dofs which b.c. More...

virtual bcGeomType	giveBCGeoType () const
	Returns geometry character of boundary condition. More...

virtual void	postInitialize ()
	Performs post initialization steps. More...

virtual contextIOResultType	saveContext (DataStream &stream, ContextMode mode, void *obj=NULL)
	Stores receiver state to output stream. More...

virtual contextIOResultType	restoreContext (DataStream &stream, ContextMode mode, void *obj=NULL)
	Restores the receiver state previously written in stream. More...

Public Member Functions inherited from oofem::FEMComponent
	FEMComponent (int n, Domain *d)
	Regular constructor, creates component with given number and belonging to given domain. More...

virtual	~FEMComponent ()
	Virtual destructor. More...

Domain *	giveDomain () const

virtual void	setDomain (Domain *d)
	Sets associated Domain. More...

int	giveNumber () const

void	setNumber (int num)
	Sets number of receiver. More...

virtual void	updateLocalNumbering (EntityRenumberingFunctor &f)
	Local renumbering support. More...

virtual int	checkConsistency ()
	Allows programmer to test some internal data, before computation begins. More...

virtual void	printOutputAt (FILE file, TimeStep tStep)
	Prints output of receiver to stream, for given time step. More...

virtual void	printYourself ()
	Prints receiver state on stdout. Useful for debugging. More...

virtual Interface *	giveInterface (InterfaceType t)
	Interface requesting service. More...

std::string	errorInfo (const char *func) const
	Returns string for prepending output (used by error reporting macros). More...

Protected Member Functions
void	integrateDevTangent (FloatMatrix &answer, Element *e, int boundary)
	Helper function that integrates the deviatoric tangent contribution from a single element boundary. More...

void	integrateVolTangent (FloatArray &answer, Element *e, int boundary)
	Helper function that integrates the volumetric tangent contribution from a single element boundary. More...

void	fromDeviatoricBase2D (FloatArray &cartesian, FloatArray &deviatoric)
	Converts from deviatoric to (normal) cartesian base (arrays are second order 2D tensors in Voigt notation) More...

void	fromDeviatoricBase3D (FloatArray &cartesian, FloatArray &deviatoric)
	Converts from deviatoric to (normal) cartesian base (arrays are second order 3D tensors in Voigt notation) More...

void	fromDeviatoricBase2D (FloatMatrix &cartesian, FloatMatrix &deviatoric)
	Converts from deviatoric to (normal) cartesian base (arrays are fourth order 2D tensors in Voigt notation) More...

void	fromDeviatoricBase3D (FloatMatrix &cartesian, FloatMatrix &deviatoric)
	Converts from deviatoric to (normal) cartesian base (arrays are fourth order 3D tensors in Voigt notation) More...

Protected Attributes
FloatArray	devGradient
	Prescribed gradient $d_{\mathrm{dev},ij}$ in Voigt form. More...

double	volGradient
	The volumetric part of what was sent in (needed to return the difference). More...

double	pressure
	Prescribed pressure. More...

std::unique_ptr< Node >	sigmaDev
	DOF-manager containing the unknown deviatoric stress. More...

IntArray	dev_id
	Dof IDs for the lagrange multipliers in sigmaDev. More...

Protected Attributes inherited from oofem::GeneralBoundaryCondition
int	timeFunction
	Associated load time function. More...

bcValType	valType
	Physical meaning of BC value. More...

IntArray	dofs
	Dofs that b.c. is applied to (relevant for Dirichlet type b.c.s). More...

int	isImposedTimeFunction
	Zero by default - the BC is than always imposed. More...

int	set
	Set number for boundary condition to be applied to. More...

Protected Attributes inherited from oofem::FEMComponent
int	number
	Component number. More...

Domain *	domain
	Link to domain object, useful for communicating with other FEM components. More...

Detailed Description

Applies a mean deviatoric shear rate and pressure (Neumann boundary condition).

Introduces unknowns for the deviatoric stress, and this boundary condition adds contributions to both the left and right hand side of the system. The approach expresses the deviatoric stresses/strain(rates) in a special (nonsymmetric) base;

$\boldsymbol A_{\mathrm{dev}} = \sum_{i=1}^{n} A_{\mathrm{dev},i} \boldsymbol E_i$

where the bases $\boldsymbol E_i$ can be chosen as

$\boldsymbol E_1 = \frac{1}{\sqrt{2}}\begin{pmatrix}1 & 0 \\ 0 & -1\end{pmatrix}, \quad \boldsymbol E_2 = \begin{pmatrix}0 & 1 \\ 0 & 0\end{pmatrix}, \quad \boldsymbol E_3 = \begin{pmatrix}0 & 0 \\ 1 & 0\end{pmatrix}.$

in 2D, and

$\boldsymbol E_1 = \frac{1}{\sqrt{6}}\begin{pmatrix}2 & 0 & 0\\ 0 & -1 & 0 \\ 0 & 0 & -1\end{pmatrix}, \quad \boldsymbol E_2 = \frac{1}{\sqrt{2}}\begin{pmatrix}0 & 0 & 0\\ 0 & 1 & 0 \\ 0 & 0 & -1\end{pmatrix}, \quad \boldsymbol E_3 = \begin{pmatrix}0 & 1 & 0\\ 0 & 0 & 0 \\ 0 & 0 & 0\end{pmatrix}, \ldots\quad \boldsymbol E_8 = \begin{pmatrix}0 & 0 & 0\\ 0 & 0 & 0 \\ 0 & 1 & 0\end{pmatrix}$

in 3D (in 1D no deviatoric component exists).

Either bulk elements + side number can be used, or a boundary element (line in 2D, surface in 3D) can be used directly.

Note: The 2D case assumes plane strain(rate), as is the case in _2dFlow.; This is only applicable to momentum balance equation. Both solid or fluids, incompressible or compressible, should work.; Should typically be prescribed on the entire external boundary of an representative volume element.; Should be applied to element boundaries, not DOFs.; The implementation doesn't assume that the stress is symmetric, so rigid body rotations are automatically removed.; Rigid body translations must be controlled separately.

Author: Mikael Öhman

Definition at line 91 of file mixedgradientpressureneumann.h.

Constructor & Destructor Documentation

oofem::MixedGradientPressureNeumann::MixedGradientPressureNeumann	(	int	n,
		Domain *	d
	)

Creates boundary condition with given number, belonging to given domain.

Parameters

n	Boundary condition number.
d	Domain to which new object will belongs.

Todo:: Rethink this. Should be created as part of createDofs()

Definition at line 62 of file mixedgradientpressureneumann.C.

References dev_id, oofem::IntArray::followedBy(), oofem::Domain::giveNextFreeDofID(), oofem::Domain::giveNumberOfSpatialDimensions(), and sigmaDev.

oofem::MixedGradientPressureNeumann::~MixedGradientPressureNeumann ( )

virtual

Destructor.

Definition at line 77 of file mixedgradientpressureneumann.C.

Member Function Documentation

void oofem::MixedGradientPressureNeumann::assemble	(	SparseMtrx &	answer,
		TimeStep *	tStep,
		CharType	type,
		const UnknownNumberingScheme &	r_s,
		const UnknownNumberingScheme &	c_s,
		double	scale = `1.0`
	)

virtual

Assembles B.C.

contributions to specified matrix.

Parameters

[in,out]	answer	Matrix to assemble to.
	tStep	Active time step.
	tStep	Active time step.
	type	Type of matrix to assemble.
	r_s	Row numbering scheme.
	c_s	Column numbering scheme.
	scale	Scaling factor.

Reimplemented from oofem::ActiveBoundaryCondition.

Definition at line 468 of file mixedgradientpressureneumann.C.

References oofem::SparseMtrx::assemble(), oofem::IntArray::at(), oofem::FloatMatrix::beTranspositionOf(), oofem::FEInterpolation::boundaryGiveNodes(), dev_id, oofem::GeneralBoundaryCondition::dofs, oofem::Element::giveBoundaryLocationArray(), oofem::FEMComponent::giveDomain(), oofem::Domain::giveElement(), oofem::Element::giveInterpolation(), oofem::Domain::giveSet(), oofem::IntArray::giveSize(), integrateDevTangent(), oofem::FloatMatrix::negated(), sigmaDev, and oofem::FloatMatrix::times().

void oofem::MixedGradientPressureNeumann::assembleVector	(	FloatArray &	answer,
		TimeStep *	tStep,
		CharType	type,
		ValueModeType	mode,
		const UnknownNumberingScheme &	s,
		FloatArray *	eNorms = `NULL`
	)

virtual

Assembles B.C.

contributions to specified vector.

Parameters

[in,out]	answer	Vector to assemble to.
	tStep	Active time step.
	type	Type of matrix to assemble.
	mode	Mode of value.
	s	Numbering scheme.
	eNorms	Norms for each dofid.

Returns: Equivalent of the sum of the element norm (squared) of assembled vector.

Reimplemented from oofem::ActiveBoundaryCondition.

Definition at line 397 of file mixedgradientpressureneumann.C.

References oofem::FloatArray::assemble(), oofem::FloatArray::assembleSquared(), oofem::IntArray::at(), oofem::FloatArray::beProductOf(), oofem::FloatArray::beScaled(), oofem::FloatArray::beTProductOf(), oofem::FEInterpolation::boundaryGiveNodes(), oofem::Element::computeBoundaryVectorOf(), dev_id, devGradient, oofem::GeneralBoundaryCondition::dofs, oofem::MixedGradientPressureBC::domainSize(), oofem::Element::giveBoundaryLocationArray(), oofem::FEMComponent::giveDomain(), oofem::Domain::giveElement(), oofem::Element::giveInterpolation(), oofem::Domain::giveSet(), oofem::IntArray::giveSize(), integrateDevTangent(), integrateVolTangent(), oofem::FloatArray::negated(), pressure, sigmaDev, and oofem::FloatArray::times().

void oofem::MixedGradientPressureNeumann::computeFields	(	FloatArray &	stressDev,
		double &	vol,
		TimeStep *	tStep
	)

virtual

Computes the homogenized fields through sensitivity analysis.

Parameters

[out]	stressDev	Computes the homogenized deviatoric stress.
[out]	vol	Computes the homogenized volumetric gradient.
	tStep	Time step for which field to obtain.

Implements oofem::MixedGradientPressureBC.

Definition at line 501 of file mixedgradientpressureneumann.C.

References oofem::IntArray::at(), oofem::FloatArray::at(), oofem::FEInterpolation::boundaryGiveNodes(), oofem::FloatArray::clear(), oofem::Element::computeBoundaryVectorOf(), dev_id, oofem::GeneralBoundaryCondition::dofs, oofem::MixedGradientPressureBC::domainSize(), oofem::FloatArray::dotProduct(), fromDeviatoricBase2D(), fromDeviatoricBase3D(), oofem::FEMComponent::giveDomain(), oofem::Domain::giveElement(), oofem::Element::giveInterpolation(), oofem::Domain::giveNumberOfSpatialDimensions(), oofem::Domain::giveSet(), oofem::IntArray::giveSize(), oofem::ActiveBoundaryCondition::giveUnknown(), integrateVolTangent(), oofem::FloatArray::resize(), and volGradient.

void oofem::MixedGradientPressureNeumann::computeTangents	(	FloatMatrix &	Ed,
		FloatArray &	Ep,
		FloatArray &	Cd,
		double &	Cp,
		TimeStep *	tStep
	)

virtual

Computes the macroscopic tangents through sensitivity analysis.

Parameters

[out]	Ed	Tangent $\frac{\partial \sigma_{\mathrm{dev}}}{\partial d_{\mathrm{dev}}}$ .
[out]	Ep	Tangent $\frac{\partial \sigma_{\mathrm{dev}}}{\partial p}$ .
[out]	Cd	Tangent $\frac{\partial d_{\mathrm{vol}}}{\partial d_{\mathrm{dev}}}$ .
[out]	Cp	Tangent $\frac{\partial d_{\mathrm{vol}}}{\partial p}$ .
	tStep	Time step for the tangents.

Todo:: Get this from engineering model

Implements oofem::MixedGradientPressureBC.

Definition at line 541 of file mixedgradientpressureneumann.C.

References oofem::FloatArray::assemble(), oofem::EngngModel::assemble(), oofem::IntArray::at(), oofem::FloatArray::at(), oofem::FloatMatrix::at(), oofem::FEInterpolation::boundaryGiveNodes(), oofem::classFactory, oofem::FloatArray::clear(), oofem::FloatMatrix::clear(), oofem::ClassFactory::createSparseLinSolver(), oofem::ClassFactory::createSparseMtrx(), dev_id, oofem::GeneralBoundaryCondition::dofs, oofem::FEMComponent::domain, oofem::MixedGradientPressureBC::domainSize(), fromDeviatoricBase2D(), fromDeviatoricBase3D(), oofem::Element::giveBoundaryLocationArray(), oofem::FEMComponent::giveDomain(), oofem::Domain::giveElement(), oofem::Domain::giveEngngModel(), oofem::Element::giveInterpolation(), oofem::Domain::giveNumber(), oofem::Domain::giveNumberOfSpatialDimensions(), oofem::Domain::giveSet(), oofem::IntArray::giveSize(), oofem::FloatArray::giveSize(), integrateVolTangent(), OOFEM_ERROR, sigmaDev, oofem::ST_Petsc, oofem::FloatArray::times(), oofem::FloatArray::zero(), and oofem::FloatMatrix::zero().

void oofem::MixedGradientPressureNeumann::fromDeviatoricBase2D	(	FloatArray &	cartesian,
		FloatArray &	deviatoric
	)

protected

Converts from deviatoric to (normal) cartesian base (arrays are second order 2D tensors in Voigt notation)

Definition at line 94 of file mixedgradientpressureneumann.C.

References oofem::FloatArray::at(), and oofem::FloatArray::resize().

Referenced by computeFields(), and computeTangents().

void oofem::MixedGradientPressureNeumann::fromDeviatoricBase2D	(	FloatMatrix &	cartesian,
		FloatMatrix &	deviatoric
	)

protected

Converts from deviatoric to (normal) cartesian base (arrays are fourth order 2D tensors in Voigt notation)

Definition at line 118 of file mixedgradientpressureneumann.C.

References oofem::FloatMatrix::at(), and oofem::FloatMatrix::resize().

void oofem::MixedGradientPressureNeumann::fromDeviatoricBase3D	(	FloatArray &	cartesian,
		FloatArray &	deviatoric
	)

protected

Converts from deviatoric to (normal) cartesian base (arrays are second order 3D tensors in Voigt notation)

Definition at line 103 of file mixedgradientpressureneumann.C.

References oofem::FloatArray::at(), and oofem::FloatArray::resize().

Referenced by computeFields(), and computeTangents().

void oofem::MixedGradientPressureNeumann::fromDeviatoricBase3D	(	FloatMatrix &	cartesian,
		FloatMatrix &	deviatoric
	)

protected

Converts from deviatoric to (normal) cartesian base (arrays are fourth order 3D tensors in Voigt notation)

Definition at line 139 of file mixedgradientpressureneumann.C.

References oofem::FloatMatrix::at(), and oofem::FloatMatrix::resize().

virtual const char* oofem::MixedGradientPressureNeumann::giveClassName ( ) const

inlinevirtual

Returns: Class name of the receiver.

Implements oofem::FEMComponent.

Definition at line 163 of file mixedgradientpressureneumann.h.

void oofem::MixedGradientPressureNeumann::giveInputRecord ( DynamicInputRecord & input )

virtual

Setups the input record string of receiver.

Parameters

input Dynamic input record to be filled by receiver.

Reimplemented from oofem::GeneralBoundaryCondition.

Definition at line 666 of file mixedgradientpressureneumann.C.

References _IFT_MixedGradientPressure_pressure, oofem::GeneralBoundaryCondition::giveInputRecord(), OOFEM_ERROR, pressure, and oofem::DynamicInputRecord::setField().

virtual const char* oofem::MixedGradientPressureNeumann::giveInputRecordName ( ) const

inlinevirtual

Returns: Input record name of the receiver.

Implements oofem::FEMComponent.

Definition at line 164 of file mixedgradientpressureneumann.h.

References _IFT_MixedGradientPressureNeumann_Name.

DofManager * oofem::MixedGradientPressureNeumann::giveInternalDofManager ( int i )

virtual

Returns the volumetric DOF manager for i == 1, and the deviatoric manager for i == 2.

Reimplemented from oofem::GeneralBoundaryCondition.

Definition at line 88 of file mixedgradientpressureneumann.C.

References sigmaDev.

void oofem::MixedGradientPressureNeumann::giveLocationArrays	(	std::vector< IntArray > &	rows,
		std::vector< IntArray > &	cols,
		CharType	type,
		const UnknownNumberingScheme &	r_s,
		const UnknownNumberingScheme &	c_s
	)

virtual

Gives a list of location arrays that will be assembled.

This should only be used to construct zero structure in sparse matrices. The rows and columns location arrays returned in tuples (stored in vector), allowing to efficiently assemble and allocate off-diagonal blocks. The nonzero entries are assembled and allocated for entries at (rows[i], cols[i]) positions.

Parameters

rows	List of location arrays for r_s.
cols	List of location arrays for c_s.
type	Type of matrix to assemble.
r_s	Row numbering scheme.
c_s	Column numbering scheme.

Reimplemented from oofem::ActiveBoundaryCondition.

Definition at line 238 of file mixedgradientpressureneumann.C.

References oofem::IntArray::at(), oofem::FEInterpolation::boundaryGiveNodes(), dev_id, oofem::GeneralBoundaryCondition::dofs, oofem::Element::giveBoundaryLocationArray(), oofem::FEMComponent::giveDomain(), oofem::Domain::giveElement(), oofem::Element::giveInterpolation(), oofem::Domain::giveSet(), oofem::IntArray::giveSize(), oofem::IntArray::resize(), and sigmaDev.

int oofem::MixedGradientPressureNeumann::giveNumberOfInternalDofManagers ( )

virtual

Returns the number of internal DOF managers (=2).

This boundary condition stores its own DOF managers, one for $d_{\mathrm{dev},ij}$ in which the DOFs are prescribed and one for $d_{\mathrm{vol}}$ for single free volumetric strain rate.

Reimplemented from oofem::GeneralBoundaryCondition.

Definition at line 82 of file mixedgradientpressureneumann.C.

virtual bcType oofem::MixedGradientPressureNeumann::giveType ( ) const

inlinevirtual

Not relevant for this boundary condition.

Reimplemented from oofem::MixedGradientPressureBC.

Definition at line 133 of file mixedgradientpressureneumann.h.

References oofem::UnknownBT.

IRResultType oofem::MixedGradientPressureNeumann::initializeFrom ( InputRecord * ir )

virtual

Initializes receiver according to object description stored in input record.

The input record contains two fields;

devGradient #columns { d_11 d_22 ... d_21 ... } (required)
pressure p (required) The gradient should be in Voigt notation (only the deviatoric part will be used)

Reimplemented from oofem::MixedGradientPressureBC.

Definition at line 660 of file mixedgradientpressureneumann.C.

References oofem::MixedGradientPressureBC::initializeFrom().

void oofem::MixedGradientPressureNeumann::integrateDevTangent	(	FloatMatrix &	answer,
		Element *	e,
		int	boundary
	)

protected

Helper function that integrates the deviatoric tangent contribution from a single element boundary.

Definition at line 311 of file mixedgradientpressureneumann.C.

References oofem::FloatMatrix::add(), oofem::FloatArray::at(), oofem::FloatMatrix::at(), oofem::FloatMatrix::beNMatrixOf(), oofem::FloatMatrix::beProductOf(), oofem::FEInterpolation::boundaryEvalN(), oofem::FEInterpolation::boundaryEvalNormal(), oofem::FloatMatrix::clear(), oofem::FEInterpolation::giveBoundaryIntegrationRule(), oofem::FEMComponent::giveDomain(), oofem::Element::giveInterpolation(), oofem::FEInterpolation::giveInterpolationOrder(), oofem::Domain::giveNumberOfSpatialDimensions(), and oofem::FloatMatrix::resize().

Referenced by assemble(), and assembleVector().

void oofem::MixedGradientPressureNeumann::integrateVolTangent	(	FloatArray &	answer,
		Element *	e,
		int	boundary
	)

protected

Helper function that integrates the volumetric tangent contribution from a single element boundary.

Definition at line 277 of file mixedgradientpressureneumann.C.

References oofem::FloatMatrix::beNMatrixOf(), oofem::FEInterpolation::boundaryEvalN(), oofem::FEInterpolation::boundaryEvalNormal(), oofem::FloatArray::clear(), oofem::FEInterpolation::giveBoundaryIntegrationRule(), oofem::FEMComponent::giveDomain(), oofem::Element::giveInterpolation(), oofem::FEInterpolation::giveInterpolationOrder(), oofem::Domain::giveNumberOfSpatialDimensions(), and oofem::FloatArray::plusProduct().

Referenced by assembleVector(), computeFields(), and computeTangents().

void oofem::MixedGradientPressureNeumann::scale ( double s )

virtual

Scales the receiver according to given value.

Typically used in nondimensional analysis to scale down BCs and ICs.

Parameters

s	Scale factor.

Reimplemented from oofem::GeneralBoundaryCondition.

Definition at line 677 of file mixedgradientpressureneumann.C.

References devGradient, pressure, and oofem::FloatArray::times().

void oofem::MixedGradientPressureNeumann::setPrescribedDeviatoricGradientFromVoigt ( const FloatArray & ddev )

virtual

Sets the prescribed tensor from the matrix from given Voigt notation.

Assumes use of double values (gamma) for off-diagonal, usually the way for strain in Voigt form.

Parameters

ddev	Vector in Voigt format.

Implements oofem::MixedGradientPressureBC.

Definition at line 206 of file mixedgradientpressureneumann.C.

References oofem::FloatArray::at(), oofem::FloatArray::clear(), devGradient, oofem::FEMComponent::domain, oofem::Domain::giveNumberOfSpatialDimensions(), oofem::FloatArray::resize(), and volGradient.

virtual void oofem::MixedGradientPressureNeumann::setPrescribedPressure ( double p )

inlinevirtual

Set prescribed pressure.

Parameters

p	New prescribed pressure.

Implements oofem::MixedGradientPressureBC.

Definition at line 150 of file mixedgradientpressureneumann.h.

Member Data Documentation

IntArray oofem::MixedGradientPressureNeumann::dev_id

protected

Dof IDs for the lagrange multipliers in sigmaDev.

Definition at line 108 of file mixedgradientpressureneumann.h.

Referenced by assemble(), assembleVector(), computeFields(), computeTangents(), giveLocationArrays(), and MixedGradientPressureNeumann().

FloatArray oofem::MixedGradientPressureNeumann::devGradient

protected

Prescribed gradient $d_{\mathrm{dev},ij}$ in Voigt form.

Definition at line 95 of file mixedgradientpressureneumann.h.

Referenced by assembleVector(), scale(), and setPrescribedDeviatoricGradientFromVoigt().

double oofem::MixedGradientPressureNeumann::pressure

protected

Prescribed pressure.

Definition at line 103 of file mixedgradientpressureneumann.h.

Referenced by assembleVector(), giveInputRecord(), and scale().

std :: unique_ptr< Node > oofem::MixedGradientPressureNeumann::sigmaDev

protected

DOF-manager containing the unknown deviatoric stress.

Definition at line 106 of file mixedgradientpressureneumann.h.

Referenced by assemble(), assembleVector(), computeTangents(), giveInternalDofManager(), giveLocationArrays(), and MixedGradientPressureNeumann().

double oofem::MixedGradientPressureNeumann::volGradient

protected

The volumetric part of what was sent in (needed to return the difference).

If caller takes care and sends in a deviatoric gradient, then this will be zero and the return value for the volumetric part will be the true volumetric change.

Definition at line 100 of file mixedgradientpressureneumann.h.

Referenced by computeFields(), and setPrescribedDeviatoricGradientFromVoigt().

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

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation