NeoHookean Class Reference

NeoHookean constitutive behavior. More...

#include <Material.h>

Inheritance diagram for NeoHookean:

Classes
struct	NeoHookenTmpVec
	Holds temporary vectors used by getConstitutiveResponse Instead of allocating new arrays on the stack, we reuse the same memory in the hope of better cache efficiency There is on instance of this struct per thread. More...
Public Member Functions
	NeoHookean (double LambdaInput, double MuInput, double rhoInput=0)
virtual	~NeoHookean ()
	NeoHookean (const NeoHookean &NewMat)
virtual NeoHookean *	clone () const
bool	getConstitutiveResponse (const std::vector< double > &strain, std::vector< double > &stress, std::vector< double > &tangents, const ConstRespMode &mode) const
	Returns the constitutive response of the material.
const std::string	getMaterialName () const
	returns a string with the name of the material
double	getSoundSpeed (void) const
Private Attributes
double	Lambda
double	Mu
Static Private Attributes
static GaloisRuntime::PerCPU < NeoHookenTmpVec >	perCPUtmpVec
	Per thread storage for NeoHookenTmpVec.

Detailed Description

NeoHookean constitutive behavior.

Constructor & Destructor Documentation

NeoHookean::NeoHookean	(	double	LambdaInput,
		double	MuInput,
		double	rhoInput = `0`
	)			`[inline]`

virtual NeoHookean::~NeoHookean ( ) [inline, virtual]

NeoHookean::NeoHookean ( const NeoHookean & NewMat ) [inline]

Member Function Documentation

virtual NeoHookean* NeoHookean::clone ( ) const [inline, virtual]

Implements SimpleMaterial.

bool NeoHookean::getConstitutiveResponse	(	const std::vector< double > &	strain,
		std::vector< double > &	stress,
		std::vector< double > &	tangents,
		const ConstRespMode &	mode
	)			const `[virtual]`

Returns the constitutive response of the material.

Given the local strain, it returns the local stress, and if requested, the constitutive tangents.

More precisely:
The strain is assumed to be a 3x3 second-order tensor $F_{iJ}$ .
The stress is assumed to be a 3x3 second-order tensor $P_{iJ}(\bf{F})$ .
The constitutive tangents are a 3x3x3x3 fourth-order tensor

$A_{iJkL} = \frac{\partial P_{iJ}}{\partial F_{kL}}$

Parameters:

	strain	strain tensor, input
	stress	array where the stress tensor is returned
	tangents	array where the constitutive tangents are returned. If not provided, not computed.
	mode	tells whether to compute tangents vector or skip it

See also:: ConstRespMode

If cannot compute the constitutive relation for some reason, for example a negative determinant in the strain, it returns false. If successful, returns true.

Implements SimpleMaterial.

const std::string NeoHookean::getMaterialName ( ) const [inline, virtual]

returns a string with the name of the material

Implements SimpleMaterial.

double NeoHookean::getSoundSpeed ( void ) const [inline, virtual]