artisynth.core.materials

Class IncompressibleMaterial

java.lang.Object

artisynth.core.materials.MaterialBase

artisynth.core.materials.FemMaterial

artisynth.core.materials.IncompressibleMaterial

All Implemented Interfaces:

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

Direct Known Subclasses:

CubicHyperelastic, FungMaterial, IncompNeoHookeanMaterial, MooneyRivlinMaterial, OgdenMaterial

public class IncompressibleMaterial
extends FemMaterial

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	IncompressibleMaterial.BulkPotential

Field Summary

Fields

Modifier and Type	Field and Description
static IncompressibleMaterial.BulkPotential	DEFAULT_BULK_POTENTIAL
static double	DEFAULT_KAPPA
static PropertyList	myProps

Constructor Summary

Constructors

Constructor and Description
IncompressibleMaterial()
IncompressibleMaterial(double kappa)

Method Summary

Modifier and Type	Method and Description
void	addPressureStress(SymmetricMatrix3d sigma, double p)
void	addPressureTangent(Matrix6d D, double p)
void	computePressureStress(SymmetricMatrix3d sigma, double p)
void	computePressureTangent(Matrix6d D, double p)
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	getBulkModulus()
PropertyMode	getBulkModulusMode()
IncompressibleMaterial.BulkPotential	getBulkPotential()
PropertyMode	getBulkPotentialMode()
double	getEffectiveModulus(double J)
double	getEffectivePressure(double J)
boolean	isIncompressible()
boolean	isInvertible() Returns true if this material is defined for a deformation gradient with a non-positive determinant.
void	scaleDistance(double s) Scales all distance coordinates.
void	scaleMass(double s) Scales all mass units.
void	setBulkModulus(double nu)
void	setBulkModulusMode(PropertyMode mode)
void	setBulkPotential(IncompressibleMaterial.BulkPotential potential)
void	setBulkPotentialMode(PropertyMode mode)

Methods inherited from class artisynth.core.materials.FemMaterial

clone, equals, getSubClasses, getViscoBehavior, isCorotated, 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

DEFAULT_KAPPA

public static final double DEFAULT_KAPPA

See Also:

Constant Field Values

DEFAULT_BULK_POTENTIAL

public static final IncompressibleMaterial.BulkPotential DEFAULT_BULK_POTENTIAL

myProps

public static PropertyList myProps

Constructor Detail

IncompressibleMaterial

public IncompressibleMaterial()

IncompressibleMaterial

public IncompressibleMaterial(double kappa)

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

setBulkModulus

public void setBulkModulus(double nu)

getBulkModulus

public double getBulkModulus()

setBulkModulusMode

public void setBulkModulusMode(PropertyMode mode)

getBulkModulusMode

public PropertyMode getBulkModulusMode()

setBulkPotential

public void setBulkPotential(IncompressibleMaterial.BulkPotential potential)

getBulkPotential

public IncompressibleMaterial.BulkPotential getBulkPotential()

setBulkPotentialMode

public void setBulkPotentialMode(PropertyMode mode)

getBulkPotentialMode

public PropertyMode getBulkPotentialMode()

getEffectiveModulus

public double getEffectiveModulus(double J)

getEffectivePressure

public double getEffectivePressure(double J)

isIncompressible

public boolean isIncompressible()

Overrides:

isIncompressible in class FemMaterial

equals

public boolean equals(FemMaterial mat)

Overrides:

equals in class FemMaterial

computePressureStress

public void computePressureStress(SymmetricMatrix3d sigma,
                                  double p)

addPressureStress

public void addPressureStress(SymmetricMatrix3d sigma,
                              double p)

computePressureTangent

public void computePressureTangent(Matrix6d D,
                                   double p)

addPressureTangent

public void addPressureTangent(Matrix6d D,
                               double p)

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)

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

isInvertible

public boolean isInvertible()

Description copied from class: FemMaterial

Returns true if this material is defined for a deformation gradient with a non-positive determinant.

Overrides:

isInvertible in class FemMaterial