Abstract class for hyperelastic models. More...

#include <nonlininteg.hpp>

Inheritance diagram for mfem::HyperelasticModel:

Collaboration diagram for mfem::HyperelasticModel:

Public Member Functions
	HyperelasticModel ()

void	SetTransformation (ElementTransformation &_T)
	An element transformation that can be used to evaluate coefficients. More...

virtual double	EvalW (const DenseMatrix &J) const =0
	Evaluate the strain energy density function, W=W(J). More...

virtual void	EvalP (const DenseMatrix &J, DenseMatrix &P) const =0
	Evaluate the 1st Piola-Kirchhoff stress tensor, P=P(J). More...

virtual void	AssembleH (const DenseMatrix &J, const DenseMatrix &DS, const double weight, DenseMatrix &A) const =0

virtual	~HyperelasticModel ()

Protected Attributes
ElementTransformation *	T

Detailed Description

Abstract class for hyperelastic models.

Definition at line 49 of file nonlininteg.hpp.

Constructor & Destructor Documentation

mfem::HyperelasticModel::HyperelasticModel ( )

inline

Definition at line 55 of file nonlininteg.hpp.

virtual mfem::HyperelasticModel::~HyperelasticModel ( )

inlinevirtual

Definition at line 73 of file nonlininteg.hpp.

Member Function Documentation

virtual void mfem::HyperelasticModel::AssembleH	(	const DenseMatrix &	J,
		const DenseMatrix &	DS,
		const double	weight,
		DenseMatrix &	A
	)		const

pure virtual

Evaluate the derivative of the 1st Piola-Kirchhoff stress tensor and assemble its contribution to the local gradient matrix 'A'. 'DS' is the gradient of the basis matrix (dof x dim), and 'weight' is the quadrature weight.

Implemented in mfem::NeoHookeanModel, and mfem::InverseHarmonicModel.