Basic class for the mechanical physics plugin object. More...

#include <lemMechanicalPhysics.h>

Inheritance diagram for LemMechanicalPhysics:

Collaboration diagram for LemMechanicalPhysics:

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Public Types
enum	PhysicsAttributeIds { ISOPARAMETRIC_ID, NUM_ATTRI_IDS }
	IDs for physics attributes. More...

enum	StateVarIds { U_ID, W_ID, NUM_STATEVAR_IDS }
	IDs for Mechanical physics state vars. More...

enum	NodeAttributeIds { S_NA_ID, E_NA_ID, NUM_NA_IDS }
	IDs for physics node attributes. More...

enum	GaussAttributeIds { S_GA_ID, SOLD_GA_ID, E_GA_ID, EOLD_GA_ID, ST_GA_ID, STOLD_GA_ID, NUM_GA_IDS }
	IDs for physics Gauss attributes. More...

enum	ElementPropertyIds { AREA_ID, NUM_PROPER_IDS }
	IDs for physics element properties. More...

enum	BoundaryConditionIds { FIXED_U_BC_ID, FIXED_CF_BC_ID, NUM_BC_IDS }
	IDs for accepted boundary condition types. More...

enum	BoundaryConditionValueIds { BC_UX_ID, BC_UY_ID, BC_UZ_ID, BC_CF_ID, NUM_BCV_IDS }
	IDs for property values from accepted boundary condition types. More...

Public Member Functions
	LemMechanicalPhysics (const char pluginType, GmSimulationData simulation, QString id, QString description, const GmpFemPhysicsCommonMaterialFactory *matFactory, const GmLogCategory &logger)
	Constructor. Will be called by the plugin loading code.

virtual	~LemMechanicalPhysics ()
	Destructor.

virtual const char *	pluginName () const

virtual const char *	pluginType () const

virtual const QVariantMap *	physicsMetaDataMap ()
	Returns a reference for the single mechanical physics attribute map, built when the function is called for the first time.

virtual FemResultType	fillElementData (const GmElement *e, GmpFemMatrixSet &elemMatrices, GmpFemVectorSet &elemVectors)=0

virtual bool	fixedNodalForcesBc (QList< int > &nodes, QList< int > &dof, QList< double > &values) const
	See comments on base class. Fills vectors with prescribed nodal concentrated forces.

virtual bool	fixedNodalDofsBc (QList< int > &nodes, QList< int > &dof, QList< double > &values, bool *constantValues) const
	See comments on base class. Fills vectors with prescribed node displacements.

virtual bool	calcDerivedResults (bool nonLinearSolver)
	Calc stress component on nodes and/or Gauss points, ADDING the calculated value to the current result.

virtual double	fillBuMatrix (const GmElement e, const GmShape shape, const GmVector &ncoord, const GmMatrix &X, const GmVector &N, const GmMatrix &J, GmMatrix &Bp)=0
	Given a point 'ncood', the element coordinate matrix 'X', the point shape functions 'N' and the transformation Jacobian 'J', fills the matrix with cartesian partial derivatives Bu using the provided shape function and returns the scaled jacobian determinant. More...

void	fillElementDisplacements (const GmElement *e, GmVector &ue)
	Given an element, fills the vector 'ue' with nodal displacements. The vector should have size equal to n * d where n is the number of element nodes and d is the node dimension. More...

virtual void	fillMiddleCoordinates (const GmElement *e, GmMatrix Xnode, GmMatrix &MX) const

virtual double	axisSymetricFactor (const GmElement *e, const GmMatrix &X, const GmVector &N)
	Returns the factor that should be applied when using axis symetric elements. 1.0 for other etypes.

virtual bool	isPlaneStress () const
	Returns TRUE for plane stress analysis and FALSE in other cases. More...

virtual unsigned	stress_state (void)
	Returns the number of stress components. More...

GmMatrix &	dep ()
	Returns a reference to the physics constitutive tangent matrox.

Protected Attributes
lemMechanicPoint *	_mechanicPoint
	Access to mechanical material point.

GmMatrix	_Dep
	Constitutive tangent matrix (2 x 2)

Private Attributes
const char *	_pluginType
	The plugin type name.

Detailed Description

Basic class for the mechanical physics plugin object.

Member Enumeration Documentation

◆ BoundaryConditionIds

enum LemMechanicalPhysics::BoundaryConditionIds

IDs for accepted boundary condition types.

Enumerator
FIXED_U_BC_ID	Id for fixed node displacement boundary condition.
FIXED_CF_BC_ID	Id for fixed concentrated node force boundary condition.
NUM_BC_IDS	The number of boundary conditions ids above.

◆ BoundaryConditionValueIds

enum LemMechanicalPhysics::BoundaryConditionValueIds

IDs for property values from accepted boundary condition types.

Enumerator
BC_UX_ID	Nodal displacement for fixed node displacement boundary condition.
BC_UY_ID	Nodal displacement for fixed node displacement boundary condition.
BC_UZ_ID	Nodal displacement for fixed node displacement boundary condition.
BC_CF_ID	Nodal force for fixed node force boundary condition.
NUM_BCV_IDS	The number of boundary conditions value ids above.

◆ ElementPropertyIds

enum LemMechanicalPhysics::ElementPropertyIds

IDs for physics element properties.

Enumerator
AREA_ID	Id for retrieving the plane width accessor.
NUM_PROPER_IDS	The number of property ids above.

◆ GaussAttributeIds

enum LemMechanicalPhysics::GaussAttributeIds

IDs for physics Gauss attributes.

Enumerator
S_GA_ID	Base Id for Gauss attribute(s) used to store the calculated stress at the current state.
SOLD_GA_ID	Id for retrieving the stress accessor at the previous state (old stress)
E_GA_ID	Base Id for Gauss attribute(s) used to store the calculated strain at the current state.
EOLD_GA_ID	Id for retrieving the strain accessor at the previous state (old strain)
ST_GA_ID	Id for retrieving the material point state accessor at the current state.
STOLD_GA_ID	Id for retrieving the material point state accessor at the previous state.
NUM_GA_IDS	The number of Gauss attribute ids above.

◆ NodeAttributeIds

enum LemMechanicalPhysics::NodeAttributeIds

IDs for physics node attributes.

Enumerator
S_NA_ID	Base Id for node attribute(s) used to store the calculated stress.
E_NA_ID	Base Id for node attribute(s) used to store the calculated strain.
NUM_NA_IDS	The number of node attribute ids above.

◆ PhysicsAttributeIds

enum LemMechanicalPhysics::PhysicsAttributeIds

IDs for physics attributes.

Enumerator
ISOPARAMETRIC_ID	Id for retrieving the isoParametric physics attribute.
NUM_ATTRI_IDS	The number of physics attribute ids above.

◆ StateVarIds

enum LemMechanicalPhysics::StateVarIds

IDs for Mechanical physics state vars.

Enumerator
U_ID	Id for retrieving the accessor to the displacement state var.
W_ID	Id for retrieving the accessor to the rotation state var.
NUM_STATEVAR_IDS	The number of state var ids above.

Member Function Documentation

◆ fillBuMatrix()

virtual double LemMechanicalPhysics::fillBuMatrix	(	const GmElement *	e,
		const GmShape *	shape,
		const GmVector &	ncoord,
		const GmMatrix &	X,
		const GmVector &	N,
		const GmMatrix &	J,
		GmMatrix &	Bp
	)

pure virtual

Given a point 'ncood', the element coordinate matrix 'X', the point shape functions 'N' and the transformation Jacobian 'J', fills the matrix with cartesian partial derivatives Bu using the provided shape function and returns the scaled jacobian determinant.

The shape function given as parameter is the shape function that should be used to calculate the partial derivatives. It will be a linear function in case of iso-parametric elements and the element shape function otherwise.

Matrices J, X and N should have been calculated using the element shape function even in an iso-parametric setting.

Implemented in LemMechanicalTBeam.

◆ fillElementDisplacements()

void LemMechanicalPhysics::fillElementDisplacements	(	const GmElement *	e,
		GmVector &	ue
	)

Given an element, fills the vector 'ue' with nodal displacements. The vector should have size equal to n * d where n is the number of element nodes and d is the node dimension.

See comments on base class. Fills the vector ue with nodal displacements.

Values are stored in 'ue' by node. For a two nodes element with 3 dimensions ue is filled with [ux1, uy1, uz1, ux2, uy2, uz2]

◆ isPlaneStress()

bool LemMechanicalPhysics::isPlaneStress ( ) const

virtual

Returns TRUE for plane stress analysis and FALSE in other cases.

Returns TRUE for plane stress analysis.

True --> TimoshenkoPS and FALSE in other cases

◆ stress_state()

unsigned LemMechanicalPhysics::stress_state ( void )