artisynth.core.materials

Class NeoHookeanMaterial

java.lang.Object

artisynth.core.materials.MaterialBase

artisynth.core.materials.FemMaterial

artisynth.core.materials.NeoHookeanMaterial

All Implemented Interfaces:

ScalableUnits, java.lang.Cloneable, CompositeProperty, HasProperties, Clonable, Scannable

public class NeoHookeanMaterial
extends FemMaterial

Field Summary

Fields

Modifier and Type	Field and Description
static PropertyList	myProps

Constructor Summary

Constructors

Constructor and Description
NeoHookeanMaterial()
NeoHookeanMaterial(double E, double nu)

Method Summary

Modifier and Type	Method and Description
NeoHookeanMaterial	clone() Returns a clone of this composite property.
void	computeStress(SymmetricMatrix3d sigma, SolidDeformation def, Matrix3d Q, FemMaterial baseMat) Computes the strain tensor given the supplied deformation
void	computeTangent(Matrix6d D, SymmetricMatrix3d stress, SolidDeformation def, Matrix3d Q, FemMaterial baseMat) Computes the tangent stiffness matrix
boolean	equals(FemMaterial mat)
PropertyList	getAllPropertyInfo() Returns a list giving static information about all properties exported by this object.
double	getPoissonsRatio()
PropertyMode	getPoissonsRatioMode()
double	getYoungsModulus()
PropertyMode	getYoungsModulusMode()
static void	main(java.lang.String[] args)
void	scaleDistance(double s) Scales all distance coordinates.
void	scaleMass(double s) Scales all mass units.
void	setPoissonsRatio(double nu)
void	setPoissonsRatioMode(PropertyMode mode)
void	setYoungsModulus(double E)
void	setYoungsModulusMode(PropertyMode mode)

Methods inherited from class artisynth.core.materials.FemMaterial

equals, getSubClasses, getViscoBehavior, isCorotated, isIncompressible, isInvertible, isLinear, isViscoelastic, registerSubclass, setViscoBehavior

Methods inherited from class artisynth.core.materials.MaterialBase

getProperty, getPropertyHost, getPropertyInfo, hasProperty, hasSymmetricTangent, isWritable, scan, setPropertyHost, setPropertyInfo, tangentSymmetryChanged, updateMaterial, write

Methods inherited from class java.lang.Object

getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

myProps

public static PropertyList myProps

Constructor Detail

NeoHookeanMaterial

public NeoHookeanMaterial()

NeoHookeanMaterial

public NeoHookeanMaterial(double E,
                          double nu)

Method Detail

getAllPropertyInfo

public PropertyList getAllPropertyInfo()

Description copied from interface: HasProperties

Returns a list giving static information about all properties exported by this object.

Specified by:

getAllPropertyInfo in interface HasProperties

Overrides:

getAllPropertyInfo in class FemMaterial

Returns:

static information for all exported properties

setPoissonsRatio

public void setPoissonsRatio(double nu)

getPoissonsRatio

public double getPoissonsRatio()

setPoissonsRatioMode

public void setPoissonsRatioMode(PropertyMode mode)

getPoissonsRatioMode

public PropertyMode getPoissonsRatioMode()

setYoungsModulus

public void setYoungsModulus(double E)

getYoungsModulus

public double getYoungsModulus()

setYoungsModulusMode

public void setYoungsModulusMode(PropertyMode mode)

getYoungsModulusMode

public PropertyMode getYoungsModulusMode()

computeStress

public void computeStress(SymmetricMatrix3d sigma,
                          SolidDeformation def,
                          Matrix3d Q,
                          FemMaterial baseMat)

Description copied from class: FemMaterial

Computes the strain tensor given the supplied deformation

Specified by:

computeStress in class FemMaterial

Parameters:

sigma - strain tensor, populated

def - deformation information, includes deformation gradient and pressure

Q - coordinate frame specifying directions of anisotropy

baseMat - underlying base material (if any)

computeTangent

public void computeTangent(Matrix6d D,
                           SymmetricMatrix3d stress,
                           SolidDeformation def,
                           Matrix3d Q,
                           FemMaterial baseMat)

Description copied from class: FemMaterial

Computes the tangent stiffness matrix

Specified by:

computeTangent in class FemMaterial

Parameters:

D - tangent stiffness, populated

stress - the current stress tensor

def - deformation information, includes deformation gradient and pressure

Q - coordinate frame specifying directions of anisotropy

baseMat - underlying base material (if any)

equals

public boolean equals(FemMaterial mat)

Overrides:

equals in class FemMaterial

clone

public NeoHookeanMaterial clone()

Description copied from interface: CompositeProperty

Returns a clone of this composite property.

Specified by:

clone in interface CompositeProperty

Specified by:

clone in interface Clonable

Overrides:

clone in class FemMaterial

Returns:

clone of this property

main

public static void main(java.lang.String[] args)

scaleDistance

public void scaleDistance(double s)

Description copied from interface: ScalableUnits

Scales all distance coordinates.

Specified by:

scaleDistance in interface ScalableUnits

Overrides:

scaleDistance in class MaterialBase

Parameters:

s - scaling factor

scaleMass

public void scaleMass(double s)

Description copied from interface: ScalableUnits

Scales all mass units.

Specified by:

scaleMass in interface ScalableUnits

Overrides:

scaleMass in class MaterialBase

Parameters:

s - scaling factor