TractionField Class Reference

Traction field based on a given stress tensor function. More...

#include <TractionField.h>

Inheritance diagram for TractionField:

Collaboration diagram for TractionField:

Public Member Functions
	TractionField (const STensorFunc &field)
	Constructor initializing the symmetric tensor function pointer.
	TractionField (const TensorFunc &field)
	Constructor initializing the tensor function pointer.
virtual	~TractionField ()
	Empty destructor.
virtual bool	isZero () const
	Returns whether the function is identically zero or not.
virtual Vec3	deriv (const Vec3 &x, const Vec3 &n) const
	Returns the time-derivative of the function. More...
Public Member Functions inherited from TractionFunc
virtual bool	isNormalPressure () const
	Returns whether the traction is always normal to the face or not.
virtual Vec3	timeDerivative (const Vec3 &, const Vec3 &) const
	Returns the time-derivative of the function.
Public Member Functions inherited from utl::Function2< Vec3, Vec3 >
virtual	~Function2 ()
	Empty destructor.
Vec3	operator() (const Vec3 &x, const Vec3 &y) const
	Operator returning the function value for the given arguments.

Protected Member Functions
virtual Vec3	evaluate (const Vec3 &x, const Vec3 &n) const
	Evaluates the traction field function at the specified point. More...
Protected Member Functions inherited from utl::Function2< Vec3, Vec3 >
	Function2 ()
	The constructor is protected to allow sub-class instances only.

Private Attributes
const STensorFunc *	sigma
	Symmetric tensor field to derive tractions from.
const TensorFunc *	sigmaN
	Tensor field to derive tractions from.

Additional Inherited Members
Public Types inherited from utl::Function2< Vec3, Vec3 >
typedef Vec3	Input
	Input type.
typedef Vec3	Output
	Output type.

Detailed Description

Traction field based on a given stress tensor function.

This class defines an explicit traction field function based on a specified stress tensor field. The traction field is then evaluated simply as the inner-product σ ⋅ n of the stress tensor value σ and the outward-directed surface/edge normal vector n, which is provided as the second argument to the TractionField::evaluate() method.

Member Function Documentation

deriv()

Vec3 TractionField::deriv ( const Vec3 &  x, const Vec3 &  n  ) const

virtual

Returns the time-derivative of the function.

Parameters

[in]	x	Global coordinates of evaluation point
[in]	n	Outward-directed unit normal vector at evaluation point

References utl::SpatialFunction< Result >::deriv(), sigma, and sigmaN.

evaluate()

Vec3 TractionField::evaluate ( const Vec3 &  x, const Vec3 &  n  ) const

protectedvirtual

Evaluates the traction field function at the specified point.

Parameters

[in]	x	Global coordinates of evaluation point
[in]	n	Outward-directed unit normal vector at evaluation point

Implements utl::Function2< Vec3, Vec3 >.

References sigma, and sigmaN.

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

• src/Utility/TractionField.h
• src/Utility/TractionField.C