This class defines a yield surface according to Von-Mises theory. More...

#include <thermal_von_mises_yield_surface.h>

Collaboration diagram for Kratos::ThermalVonMisesYieldSurface< TPlasticPotentialType >:

Public Member Functions
Life Cycle
	ThermalVonMisesYieldSurface ()
	Initialization constructor. More...

	ThermalVonMisesYieldSurface (ThermalVonMisesYieldSurface const &rOther)
	Copy constructor. More...

ThermalVonMisesYieldSurface &	operator= (ThermalVonMisesYieldSurface const &rOther)
	Assignment operator. More...

virtual	~ThermalVonMisesYieldSurface ()
	Destructor. More...

Static Public Member Functions
Operations
static void	CalculateEquivalentStress (const BoundedVector &rStressVector, const Vector &rStrainVector, double &rEquivalentStress, ConstitutiveLaw::Parameters &rValues)
	This method computes sqrt(3*J2) More...

static void	GetInitialUniaxialThreshold (ConstitutiveLaw::Parameters &rValues, double &rThreshold)
	This method returns the initial uniaxial stress threshold. More...

static void	CalculateDamageParameter (ConstitutiveLaw::Parameters &rValues, double &rAParameter, const double CharacteristicLength)
	This method returns the damage parameter needed in the exp/linear expressions of damage. More...

static void	CalculatePlasticPotentialDerivative (const BoundedVector &rStressVector, const BoundedVector &rDeviator, const double J2, BoundedVector &rDerivativePlasticPotential, ConstitutiveLaw::Parameters &rValues)
	This method calculates the derivative of the plastic potential DG/DS. More...

static void	CalculateYieldSurfaceDerivative (const BoundedVector &rStressVector, const BoundedVector &rDeviator, const double J2, BoundedVector &rFFlux, ConstitutiveLaw::Parameters &rValues)
	This script calculates the derivatives of the Yield Surf according to NAYAK-ZIENKIEWICZ paper International journal for numerical methods in engineering vol 113-135 1972. As: DF/DS = c1V1 + c2V2 + c3*V3. More...

static int	Check (const Properties &rMaterialProperties)
	This method defines the check to be performed in the yield surface. More...

static bool	IsWorkingWithTensionThreshold ()
	This method returns true if the yield surfacecompares with the tension tield stress. More...

static double	GetScaleFactorTension (const Properties &rMaterialProperties)
	This method returns the scaling factor of the yield surface surfacecompares with the tension tield stress. More...

Type Definitions
using	PlasticPotentialType = TPlasticPotentialType
	The type of potential plasticity. More...

using	BaseType = VonMisesYieldSurface< TPlasticPotentialType >

using	AdvCLutils = AdvancedConstitutiveLawUtilities< VoigtSize >
	Advanced contitutive laws utilities for the corresponding Voigt size. More...

using	BoundedVector = array_1d< double, VoigtSize >
	Bounded vector for stresses/strains. More...

static constexpr SizeType	Dimension = PlasticPotentialType::Dimension
	The Plastic potential already defines the working simension size. More...

static constexpr SizeType	VoigtSize = PlasticPotentialType::VoigtSize
	The Plastic potential already defines the Voigt size. More...

static constexpr double	tolerance = std::numeric_limits<double>::epsilon()
	The machine precision zero tolerance. More...

	KRATOS_CLASS_POINTER_DEFINITION (ThermalVonMisesYieldSurface)
	Counted pointer of ThermalVonMisesYieldSurface. More...

Detailed Description

template<class TPlasticPotentialType>
class Kratos::ThermalVonMisesYieldSurface< TPlasticPotentialType >

This class defines a yield surface according to Von-Mises theory.

The von Mises yield criterion (also known as the maximum distortion energy criterion) suggests that yielding of a ductile material begins when the second deviatoric stress invariant J2 reaches a critical value. It is part of plasticity theory that applies best to ductile materials, such as some metals. Prior to yield, material response can be assumed to be of a nonlinear elastic, viscoelastic, or linear elastic behavior. Includes thermal effects

See also: https://en.wikipedia.org/wiki/Von_Mises_yield_criterion

Template Parameters

TPlasticPotentialType The plastic potential considered

Author: Alejandro Cornejo

Member Typedef Documentation

◆ AdvCLutils

template<class TPlasticPotentialType >

using Kratos::ThermalVonMisesYieldSurface< TPlasticPotentialType >::AdvCLutils = AdvancedConstitutiveLawUtilities<VoigtSize>

Advanced contitutive laws utilities for the corresponding Voigt size.

◆ BaseType

template<class TPlasticPotentialType >

using Kratos::ThermalVonMisesYieldSurface< TPlasticPotentialType >::BaseType = VonMisesYieldSurface<TPlasticPotentialType>

◆ BoundedVector

template<class TPlasticPotentialType >

using Kratos::ThermalVonMisesYieldSurface< TPlasticPotentialType >::BoundedVector = array_1d<double, VoigtSize>

Bounded vector for stresses/strains.

◆ PlasticPotentialType

template<class TPlasticPotentialType >

using Kratos::ThermalVonMisesYieldSurface< TPlasticPotentialType >::PlasticPotentialType = TPlasticPotentialType

The type of potential plasticity.

Constructor & Destructor Documentation

◆ ThermalVonMisesYieldSurface() [1/2]

template<class TPlasticPotentialType >

Kratos::ThermalVonMisesYieldSurface< TPlasticPotentialType >::ThermalVonMisesYieldSurface ( )

inline

Initialization constructor.

◆ ThermalVonMisesYieldSurface() [2/2]

template<class TPlasticPotentialType >

Kratos::ThermalVonMisesYieldSurface< TPlasticPotentialType >::ThermalVonMisesYieldSurface ( ThermalVonMisesYieldSurface< TPlasticPotentialType > const & rOther )

inline

Copy constructor.

◆ ~ThermalVonMisesYieldSurface()

template<class TPlasticPotentialType >

virtual Kratos::ThermalVonMisesYieldSurface< TPlasticPotentialType >::~ThermalVonMisesYieldSurface ( )

inlinevirtual

Destructor.

Member Function Documentation

◆ CalculateDamageParameter()

template<class TPlasticPotentialType >

static void Kratos::ThermalVonMisesYieldSurface< TPlasticPotentialType >::CalculateDamageParameter	(	ConstitutiveLaw::Parameters &	rValues,
		double &	rAParameter,
		const double	CharacteristicLength
	)

inlinestatic

This method returns the damage parameter needed in the exp/linear expressions of damage.

Parameters

rAParameter	The damage parameter
rValues	Parameters of the constitutive law
CharacteristicLength	The equivalent length of the FE

◆ CalculateEquivalentStress()

template<class TPlasticPotentialType >

static void Kratos::ThermalVonMisesYieldSurface< TPlasticPotentialType >::CalculateEquivalentStress	(	const BoundedVector &	rStressVector,
		const Vector &	rStrainVector,
		double &	rEquivalentStress,
		ConstitutiveLaw::Parameters &	rValues
	)

inlinestatic

This method computes sqrt(3*J2)

Parameters

rStressVector	The stress vector
rStrainVector	The StrainVector vector
rValues	Parameters of the constitutive law

◆ CalculatePlasticPotentialDerivative()

template<class TPlasticPotentialType >

static void Kratos::ThermalVonMisesYieldSurface< TPlasticPotentialType >::CalculatePlasticPotentialDerivative	(	const BoundedVector &	rStressVector,
		const BoundedVector &	rDeviator,
		const double	J2,
		BoundedVector &	rDerivativePlasticPotential,
		ConstitutiveLaw::Parameters &	rValues
	)

inlinestatic

This method calculates the derivative of the plastic potential DG/DS.

Parameters

StressVector	The stress vector
Deviator	The deviatoric part of the stress vector
J2	The second invariant of the Deviator
rDerivativePlasticPotential	The derivative of the plastic potential
rValues	Parameters of the constitutive law

◆ CalculateYieldSurfaceDerivative()

template<class TPlasticPotentialType >

static void Kratos::ThermalVonMisesYieldSurface< TPlasticPotentialType >::CalculateYieldSurfaceDerivative	(	const BoundedVector &	rStressVector,
		const BoundedVector &	rDeviator,
		const double	J2,
		BoundedVector &	rFFlux,
		ConstitutiveLaw::Parameters &	rValues
	)

inlinestatic

This script calculates the derivatives of the Yield Surf according to NAYAK-ZIENKIEWICZ paper International journal for numerical methods in engineering vol 113-135 1972. As: DF/DS = c1*V1 + c2*V2 + c3*V3.

Parameters

rStressVector	The stress vector
rDeviator	The deviatoric part of the stress vector
J2	The second invariant of the Deviator
rFFlux	The derivative of the yield surface
rValues	Parameters of the constitutive law

◆ Check()

template<class TPlasticPotentialType >

static int Kratos::ThermalVonMisesYieldSurface< TPlasticPotentialType >::Check ( const Properties & rMaterialProperties )

inlinestatic

This method defines the check to be performed in the yield surface.

Returns: 0 if OK, 1 otherwise

◆ GetInitialUniaxialThreshold()

template<class TPlasticPotentialType >

static void Kratos::ThermalVonMisesYieldSurface< TPlasticPotentialType >::GetInitialUniaxialThreshold	(	ConstitutiveLaw::Parameters &	rValues,
		double &	rThreshold
	)

inlinestatic

This method returns the initial uniaxial stress threshold.

Parameters

rThreshold	The uniaxial stress threshold
rValues	Parameters of the constitutive law

◆ GetScaleFactorTension()

template<class TPlasticPotentialType >

static double Kratos::ThermalVonMisesYieldSurface< TPlasticPotentialType >::GetScaleFactorTension ( const Properties & rMaterialProperties )

inlinestatic

This method returns the scaling factor of the yield surface surfacecompares with the tension tield stress.

◆ IsWorkingWithTensionThreshold()

template<class TPlasticPotentialType >

static bool Kratos::ThermalVonMisesYieldSurface< TPlasticPotentialType >::IsWorkingWithTensionThreshold ( )

inlinestatic

This method returns true if the yield surfacecompares with the tension tield stress.

◆ KRATOS_CLASS_POINTER_DEFINITION()

template<class TPlasticPotentialType >

Kratos::ThermalVonMisesYieldSurface< TPlasticPotentialType >::KRATOS_CLASS_POINTER_DEFINITION ( ThermalVonMisesYieldSurface< TPlasticPotentialType > )

Counted pointer of ThermalVonMisesYieldSurface.

◆ operator=()

template<class TPlasticPotentialType >

ThermalVonMisesYieldSurface& Kratos::ThermalVonMisesYieldSurface< TPlasticPotentialType >::operator= ( ThermalVonMisesYieldSurface< TPlasticPotentialType > const & rOther )

inline

Assignment operator.

Member Data Documentation

◆ Dimension

template<class TPlasticPotentialType >

constexpr SizeType Kratos::ThermalVonMisesYieldSurface< TPlasticPotentialType >::Dimension = PlasticPotentialType::Dimension

staticconstexpr

The Plastic potential already defines the working simension size.

◆ tolerance

template<class TPlasticPotentialType >

constexpr double Kratos::ThermalVonMisesYieldSurface< TPlasticPotentialType >::tolerance = std::numeric_limits<double>::epsilon()

staticconstexpr

The machine precision zero tolerance.

◆ VoigtSize

template<class TPlasticPotentialType >

constexpr SizeType Kratos::ThermalVonMisesYieldSurface< TPlasticPotentialType >::VoigtSize = PlasticPotentialType::VoigtSize

staticconstexpr

The Plastic potential already defines the Voigt size.

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

/home/runner/work/Documentation/Documentation/master/applications/ConstitutiveLawsApplication/custom_constitutive/thermal/auxiliary_files/thermal_yield_surfaces/thermal_von_mises_yield_surface.h

Public Member Functions

Static Public Member Functions

Type Definitions

Detailed Description

template<class TPlasticPotentialType> class Kratos::ThermalVonMisesYieldSurface< TPlasticPotentialType >

Member Typedef Documentation

◆ AdvCLutils

◆ BaseType

◆ BoundedVector

◆ PlasticPotentialType

Constructor & Destructor Documentation

◆ ThermalVonMisesYieldSurface() [1/2]

◆ ThermalVonMisesYieldSurface() [2/2]

◆ ~ThermalVonMisesYieldSurface()

Member Function Documentation

◆ CalculateDamageParameter()

◆ CalculateEquivalentStress()

◆ CalculatePlasticPotentialDerivative()

◆ CalculateYieldSurfaceDerivative()

◆ Check()

◆ GetInitialUniaxialThreshold()

◆ GetScaleFactorTension()

◆ IsWorkingWithTensionThreshold()

◆ KRATOS_CLASS_POINTER_DEFINITION()

◆ operator=()

Member Data Documentation

◆ Dimension

◆ tolerance

◆ VoigtSize

template<class TPlasticPotentialType>
class Kratos::ThermalVonMisesYieldSurface< TPlasticPotentialType >