Non-linear elasto-plastic mechanics with only isotropic options for thermal and creep strains. More...

#include <GeneralCladThermalCreepPlasticModel.h>

Inheritance diagram for AMP::Operator::GeneralCladThermalCreepPlasticModel:

[legend]

Public Member Functions
	GeneralCladThermalCreepPlasticModel (std::shared_ptr< MechanicsMaterialModelParameters >)

void	getConstitutiveMatrix (double *&) override

virtual void	getConstitutiveMatrixUpdatedLagrangian (double[6][6], double[3][3])

virtual void	getEffectiveStress (double *&)

virtual void	getEquivalentStrain (double *&)

virtual void	getExternalStress (double *&)

void	getInternalStress (const std::vector< std::vector< double > > &, double *&) override

virtual void	getInternalStress_UL (const std::vector< std::vector< double > > &, double *&, double[3][3], double[3][3], double)

std::shared_ptr< AMP::Materials::Material >	getMaterial ()

virtual void	getStressForUpdatedLagrangian (double[6])

void	globalReset () override

void	nonlinearInitGaussPointOperation (double) override

void	nonlinearJacobianGaussPointOperation (const std::vector< std::vector< double > > &) override

virtual void	nonlinearJacobianGaussPointOperation_UL (const std::vector< std::vector< double > > &, double[3][3], double[3][3])

void	nonlinearResetGaussPointOperation (const std::vector< std::vector< double > > &) override

virtual void	nonlinearResetGaussPointOperation_UL (const std::vector< std::vector< double > > &, double[3][3], double[3][3])

virtual void	postLinearAssembly ()

virtual void	postLinearElementOperation ()

void	postLinearGaussPointOperation () override

void	postNonlinearAssembly () override

virtual void	postNonlinearAssemblyElementOperation ()

void	postNonlinearAssemblyGaussPointOperation () override

virtual void	postNonlinearInit ()

virtual void	postNonlinearInitElementOperation ()

virtual void	postNonlinearInitGaussPointOperation ()

virtual void	postNonlinearJacobian ()

virtual void	postNonlinearJacobianElementOperation ()

void	postNonlinearJacobianGaussPointOperation () override

void	postNonlinearReset () override

virtual void	postNonlinearResetElementOperation ()

void	postNonlinearResetGaussPointOperation () override

void	preLinearAssembly () override

virtual void	preLinearElementOperation ()

virtual void	preLinearGaussPointOperation ()

void	preNonlinearAssembly () override

virtual void	preNonlinearAssemblyElementOperation ()

virtual void	preNonlinearAssemblyGaussPointOperation ()

void	preNonlinearInit (bool, bool) override

virtual void	preNonlinearInitElementOperation ()

virtual void	preNonlinearInitGaussPointOperation ()

void	preNonlinearJacobian () override

virtual void	preNonlinearJacobianElementOperation ()

virtual void	preNonlinearJacobianGaussPointOperation ()

void	preNonlinearReset () override

virtual void	preNonlinearResetElementOperation ()

virtual void	preNonlinearResetGaussPointOperation ()

virtual void	setDebugPrintInfoLevel (int print_level)

void	updateTime (double currTime)

virtual	~GeneralCladThermalCreepPlasticModel ()

Protected Member Functions
double	compute_dE1_dsig_e (double effective_stress_trial, double effective_stress, double Temp_np1, double G)

void	computeCreepStrain (const double Temp_np1, const double stress_n[6], const double creep_strain_prev, double delta_creep_strain[6], double net_stra_np1[6])

void	computeEvalv (const std::vector< std::vector< double > > &)

int	det_sign (double a)

double	help_compute_E1 (const double Temp_np1, double effective_stress)

void	radialReturn (const double stra_np1, double stre_np1, double ystre_np1, double eph_bar_plas_np1)

Protected Attributes
std::vector< double >	d_alpha

bool	d_checkCladOrPellet

double	d_constitutiveMatrix [6][6]

double	d_currentTime

double	d_Delta_Time

std::vector< double >	d_E

std::vector< int >	d_ElPl

std::vector< double >	d_EquilibriumCreepStrain

std::vector< double >	d_EquilibriumEffectivePlasticStrain

std::vector< double >	d_EquilibriumStrain

std::vector< double >	d_EquilibriumStress

std::vector< double >	d_EquilibriumTemperature

std::vector< double >	d_EquilibriumThermalStrain

std::vector< double >	d_EquilibriumYieldStress

unsigned int	d_gaussPtCnt

double	d_H

int	d_iDebugPrintInfoLevel

bool	d_Is_Init_Called

bool	d_jacobianReusesRadialReturn

std::vector< double >	d_Lambda

std::shared_ptr< AMP::Materials::Material >	d_material

double	d_n

std::vector< double >	d_Nu

std::vector< double >	d_PlasticExponent

double	d_previousTime

bool	d_resetReusesRadialReturn

double	d_Sig0

std::vector< double >	d_StrengthCoeff

std::vector< double >	d_tmp1CreepStrain

std::vector< double >	d_tmp1EffectivePlasticStrain

std::vector< double >	d_tmp1Strain

std::vector< double >	d_tmp1Stress

std::vector< double >	d_tmp1Temperature

std::vector< double >	d_tmp1ThermalStrain

std::vector< double >	d_tmp1YieldStress

std::vector< double >	d_tmp2EffectivePlasticStrain

std::vector< double >	d_tmp2Stress

std::vector< double >	d_tmp2YieldStress

bool	d_useContinuumTangent

bool	d_UseCreepStrain

bool	d_useJaumannRate

bool	d_useMaterialsLibrary

bool	d_UseThermalStrain

bool	d_useUpdatedLagrangian

double	default_alpha

double	default_BURNUP

double	default_E

double	default_Nu

double	default_OXYGEN_CONCENTRATION

double	default_TEMPERATURE

unsigned int	Plastic_Gauss_Point

unsigned int	Total_Gauss_Point

Detailed Description

Non-linear elasto-plastic mechanics with only isotropic options for thermal and creep strains.

This class represents the mechanics non-linear elasto-plastic material model. This has a capability of capturing the thermal expansion of the clad in a isotropic sense. Other than thermal expansion, creep and plastic deformation of the clad can be captured using this model as well.

Definition at line 22 of file GeneralCladThermalCreepPlasticModel.h.

Constructor & Destructor Documentation

◆ GeneralCladThermalCreepPlasticModel()

AMP::Operator::GeneralCladThermalCreepPlasticModel::GeneralCladThermalCreepPlasticModel ( std::shared_ptr< MechanicsMaterialModelParameters > )

explicit

Constructor. This reads the values of some parameters from the database object contained in the parameter object (params), or sets those parameters to default values if they are not specified in the database. Some of these parameters might be overwritten by values from the materials library. The parameters are as follows:

(1) USE_MATERIALS_LIBRARY {d_useMaterialsLibrary} (FALSE by default) - This must be set to TRUE for the current material.

(2) Material {matname} - Name of the material that is being used to calculate the material properties for the current material model. This must be a clad material.

(3) Use_Thermal_Strain {d_UseThermalStrain} (TRUE by default) - This parameter is set to TRUE if the strain due to thermal expansion has to be taken into account. Without thermal strain, clad model does not work.

(4) Use_Creep_Strain {d_UseCreepStrain} (FALSE by default) - This parameter is set to TRUE to take into consideration the irrecoverable strain due to thermal and stress induced creep inside the clad.

(5) Linear_Strain_Hardening {d_H} [5.0e8 (Pa) by default] - This one signifies the strain hardening coefficient during the plastic deformation.

(6) Plastic_Strain_Exponent {d_n} [1.0 by default] - The equivalent plastic strain exponent when calculating the modified yield stress during plastic deformation.

(7) Youngs_Modulus {default_E} [2.08e11 (Pa) by default] - The default value of Young's Modulus.

(8) Poissons_Ratio {default_Nu} [0.23 by default] - The default value of Poisson's Ratio.

(9) THERMAL_EXPANSION_COEFFICIENT {default_alpha} [2.0e-6 (/ K) by default] - Isotropic thermal expansion coefficient.

(11) Elastic_Yield_Stress {d_Sig0} [3.45e8 (Pa) by default] - The limit where elastic deformation ends and plastic deformation starts.

(12) Default_Oxygen_Concentration {default_OXYGEN_CONCENTRATION} [0.0 (unit-less) by default]

This states the default oxygen concentration if the "oxygen_concentration" variable is inactive.

(13) Default_Temperature {default_TEMPERATURE} [310.0 (K) by default] - This gives the default temperature if the "temperature" variable is inactive.

(14) Default_Burnup {default_BURNUP} [0.0 (GWd/MTU) by default] - This gives the default burnup at each gauss point if the "burnup" variable is inactive.

(15) Creep_Delta_Time {d_Delta_Time} [1.0 days (d) by default] - This is used in the calculation of the creep strain inside the clad.

◆ ~GeneralCladThermalCreepPlasticModel()

virtual AMP::Operator::GeneralCladThermalCreepPlasticModel::~GeneralCladThermalCreepPlasticModel ( )

inlinevirtual

Destructor.

Definition at line 97 of file GeneralCladThermalCreepPlasticModel.h.

Member Function Documentation

◆ compute_dE1_dsig_e()

double AMP::Operator::GeneralCladThermalCreepPlasticModel::compute_dE1_dsig_e	(	double	effective_stress_trial,
		double	effective_stress,
		double	Temp_np1,
		double	G
	)

protected

This is used to evaluate the implicit creep strain rate. This function returns the first derivative of E1 with respect to the effective stress.

◆ computeCreepStrain()

void AMP::Operator::GeneralCladThermalCreepPlasticModel::computeCreepStrain	(	const double	Temp_np1,
		const double	stress_n[6],
		const double	creep_strain_prev,
		double	delta_creep_strain[6],
		double	net_stra_np1[6]
	)

protected

This function calculates the creep strain increment ( \(\dot{epsilon}^c\)) at each time step using an implicit scheme. The formula is a general one: \(\dot{\epsilon}^c = A\sigma_e^n exp(\frac{-Q}{RT})\).

◆ computeEvalv()

void AMP::Operator::GeneralCladThermalCreepPlasticModel::computeEvalv ( const std::vector< std::vector< double > > & )

protected

This function calls the evalv functions in the materials library and updates the material parameters, such as, Young's Modulus, Poisson's Ratio and Thermal Expansion Coefficient. These material parameters corresponding to the current temperature, burnup and oxygen concentration is extracted from the materials library.

◆ det_sign()

int AMP::Operator::GeneralCladThermalCreepPlasticModel::det_sign ( double a )

protected

This function calculates the sign of a double which it takes as an input.

◆ getConstitutiveMatrix()

void AMP::Operator::GeneralCladThermalCreepPlasticModel::getConstitutiveMatrix ( double *& )

overridevirtual

Calculates the linearized elasto-plastic stress-strain constitutive matrix at each gauss point which enters the computation of the jacobian for the element.

Reimplemented from AMP::Operator::MechanicsMaterialModel.

◆ getConstitutiveMatrixUpdatedLagrangian()

virtual void AMP::Operator::MechanicsMaterialModel::getConstitutiveMatrixUpdatedLagrangian	(	double	[6][6],
		double	[3][3]
	)

inlinevirtualinherited

Calculates the constitutive matrix for the material model in Updated Lagrangian. This matrix is used for the construction of the Jacobian during the solve process.

Reimplemented in AMP::Operator::IsotropicElasticModel, AMP::Operator::PericElastoViscoPlasticModel, AMP::Operator::ThermalStrainMaterialModel, and AMP::Operator::VonMisesElastoPlasticModel.

Definition at line 73 of file MechanicsMaterialModel.h.

◆ getEffectiveStress()

virtual void AMP::Operator::MechanicsMaterialModel::getEffectiveStress ( double *& )

inlinevirtualinherited

Used to print the effective stress at any point of the simulation.

Reimplemented in AMP::Operator::PericElastoViscoPlasticModel, and AMP::Operator::VonMisesElastoPlasticModel.

Definition at line 96 of file MechanicsMaterialModel.h.

◆ getEquivalentStrain()

virtual void AMP::Operator::MechanicsMaterialModel::getEquivalentStrain ( double *& )

inlinevirtualinherited

Used to print the equivalent plastic or creep or thermal strain at any point of the simulation.

Reimplemented in AMP::Operator::PericElastoViscoPlasticModel, and AMP::Operator::VonMisesElastoPlasticModel.

Definition at line 102 of file MechanicsMaterialModel.h.

◆ getExternalStress()

virtual void AMP::Operator::MechanicsMaterialModel::getExternalStress ( double *& )

inlinevirtualinherited

Used for linear material models if the problem is being solved in an explicit method. This function has not been implemented, because all the linear material model problems are being solved in implicit way.

Reimplemented in AMP::Operator::ElasticDamageThermalStrainModel, and AMP::Operator::ThermalStrainMaterialModel.

Definition at line 109 of file MechanicsMaterialModel.h.

◆ getInternalStress()

void AMP::Operator::GeneralCladThermalCreepPlasticModel::getInternalStress	(	const std::vector< std::vector< double > > &	,
		double *&
	)

overridevirtual

Given a certain strain, this function calculates the corresponding stress taking into consideration the thermal swelling and creep effects. Creep is modeled in an implicit fashion.

Reimplemented from AMP::Operator::MechanicsMaterialModel.

◆ getInternalStress_UL()

virtual void AMP::Operator::MechanicsMaterialModel::getInternalStress_UL	(	const std::vector< std::vector< double > > &	,
		double *&	,
		double	[3][3],
		double	[3][3],
		double
	)

inlinevirtualinherited

Reimplemented in AMP::Operator::IsotropicElasticModel, AMP::Operator::ThermalStrainMaterialModel, and AMP::Operator::VonMisesElastoPlasticModel.

Definition at line 88 of file MechanicsMaterialModel.h.

◆ getMaterial()

std::shared_ptr< AMP::Materials::Material > AMP::Operator::MechanicsMaterialModel::getMaterial ( )

inlineinherited

Definition at line 226 of file MechanicsMaterialModel.h.

References AMP::Operator::MechanicsMaterialModel::d_material.

◆ getStressForUpdatedLagrangian()

virtual void AMP::Operator::MechanicsMaterialModel::getStressForUpdatedLagrangian ( double [6] )

inlinevirtualinherited

Returns the 6x1 stress vector at the current gauss point. Used in UpdatedLagrangian calculations.

Reimplemented in AMP::Operator::IsotropicElasticModel, AMP::Operator::PericElastoViscoPlasticModel, AMP::Operator::ThermalStrainMaterialModel, and AMP::Operator::VonMisesElastoPlasticModel.

Definition at line 79 of file MechanicsMaterialModel.h.

◆ globalReset()

void AMP::Operator::GeneralCladThermalCreepPlasticModel::globalReset ( )

overridevirtual

This function updates the old equilibrium values with the new one under certain conditions.

Reimplemented from AMP::Operator::MechanicsMaterialModel.

◆ help_compute_E1()

double AMP::Operator::GeneralCladThermalCreepPlasticModel::help_compute_E1	(	const double	Temp_np1,
		double	effective_stress
	)

protected

This function is used to calculate the implicit creep strain rate. It returns a creep strain rate at a given temperature and effective stress (which enters the function as input parameters).

◆ nonlinearInitGaussPointOperation()

void AMP::Operator::GeneralCladThermalCreepPlasticModel::nonlinearInitGaussPointOperation ( double )

overridevirtual

This function initializes all the gauss point vectors with the default values.

Reimplemented from AMP::Operator::MechanicsMaterialModel.

◆ nonlinearJacobianGaussPointOperation()

void AMP::Operator::GeneralCladThermalCreepPlasticModel::nonlinearJacobianGaussPointOperation ( const std::vector< std::vector< double > > & )

overridevirtual

This function updates all the material parameters and calls the radialReturn before calculating the jacobian.

Reimplemented from AMP::Operator::MechanicsMaterialModel.

◆ nonlinearJacobianGaussPointOperation_UL()

virtual void AMP::Operator::MechanicsMaterialModel::nonlinearJacobianGaussPointOperation_UL	(	const std::vector< std::vector< double > > &	,
		double	[3][3],
		double	[3][3]
	)

inlinevirtualinherited

Reimplemented in AMP::Operator::IsotropicElasticModel, AMP::Operator::ThermalStrainMaterialModel, and AMP::Operator::VonMisesElastoPlasticModel.

Definition at line 214 of file MechanicsMaterialModel.h.

◆ nonlinearResetGaussPointOperation()

void AMP::Operator::GeneralCladThermalCreepPlasticModel::nonlinearResetGaussPointOperation ( const std::vector< std::vector< double > > & )

overridevirtual

At each gauss point the "radialReturn" function is called from this function.

Reimplemented from AMP::Operator::MechanicsMaterialModel.

◆ nonlinearResetGaussPointOperation_UL()

virtual void AMP::Operator::MechanicsMaterialModel::nonlinearResetGaussPointOperation_UL	(	const std::vector< std::vector< double > > &	,
		double	[3][3],
		double	[3][3]
	)

inlinevirtualinherited

Reimplemented in AMP::Operator::IsotropicElasticModel, AMP::Operator::ThermalStrainMaterialModel, and AMP::Operator::VonMisesElastoPlasticModel.

Definition at line 192 of file MechanicsMaterialModel.h.

◆ postLinearAssembly()

virtual void AMP::Operator::MechanicsMaterialModel::postLinearAssembly ( )

inlinevirtualinherited

Definition at line 123 of file MechanicsMaterialModel.h.

◆ postLinearElementOperation()

virtual void AMP::Operator::MechanicsMaterialModel::postLinearElementOperation ( )

inlinevirtualinherited

Definition at line 127 of file MechanicsMaterialModel.h.

◆ postLinearGaussPointOperation()

void AMP::Operator::GeneralCladThermalCreepPlasticModel::postLinearGaussPointOperation ( )

inlineoverridevirtual

This is called after the apply() at each gauss point is called.

Reimplemented from AMP::Operator::MechanicsMaterialModel.

Definition at line 120 of file GeneralCladThermalCreepPlasticModel.h.

References d_gaussPtCnt.

◆ postNonlinearAssembly()

void AMP::Operator::GeneralCladThermalCreepPlasticModel::postNonlinearAssembly ( )

overridevirtual

How many gauss points have reached plasticity, is calculated in this function (done after each assembly).

Reimplemented from AMP::Operator::MechanicsMaterialModel.

◆ postNonlinearAssemblyElementOperation()

virtual void AMP::Operator::MechanicsMaterialModel::postNonlinearAssemblyElementOperation ( )

inlinevirtualinherited

Definition at line 162 of file MechanicsMaterialModel.h.

◆ postNonlinearAssemblyGaussPointOperation()

void AMP::Operator::GeneralCladThermalCreepPlasticModel::postNonlinearAssemblyGaussPointOperation ( )

inlineoverridevirtual

After the apply at each gauss point , this function increments the gauss point count by one.

Reimplemented from AMP::Operator::MechanicsMaterialModel.

Definition at line 154 of file GeneralCladThermalCreepPlasticModel.h.

References d_gaussPtCnt.

◆ postNonlinearInit()

virtual void AMP::Operator::MechanicsMaterialModel::postNonlinearInit ( )

inlinevirtualinherited

Definition at line 137 of file MechanicsMaterialModel.h.

◆ postNonlinearInitElementOperation()

virtual void AMP::Operator::MechanicsMaterialModel::postNonlinearInitElementOperation ( )

inlinevirtualinherited

Definition at line 141 of file MechanicsMaterialModel.h.

◆ postNonlinearInitGaussPointOperation()

virtual void AMP::Operator::MechanicsMaterialModel::postNonlinearInitGaussPointOperation ( )

inlinevirtualinherited

Definition at line 145 of file MechanicsMaterialModel.h.

◆ postNonlinearJacobian()

virtual void AMP::Operator::MechanicsMaterialModel::postNonlinearJacobian ( )

inlinevirtualinherited

Definition at line 202 of file MechanicsMaterialModel.h.

◆ postNonlinearJacobianElementOperation()

virtual void AMP::Operator::MechanicsMaterialModel::postNonlinearJacobianElementOperation ( )

inlinevirtualinherited

Definition at line 206 of file MechanicsMaterialModel.h.

◆ postNonlinearJacobianGaussPointOperation()

void AMP::Operator::GeneralCladThermalCreepPlasticModel::postNonlinearJacobianGaussPointOperation ( )

inlineoverridevirtual

The gauss point count is incremented after computing the nonlinear jacobian at every gauss point.

Reimplemented from AMP::Operator::MechanicsMaterialModel.

Definition at line 190 of file GeneralCladThermalCreepPlasticModel.h.

References d_gaussPtCnt.

◆ postNonlinearReset()

void AMP::Operator::GeneralCladThermalCreepPlasticModel::postNonlinearReset ( )

overridevirtual

If the updating is not done in the global reset, it is done in this function.

Reimplemented from AMP::Operator::MechanicsMaterialModel.

◆ postNonlinearResetElementOperation()

virtual void AMP::Operator::MechanicsMaterialModel::postNonlinearResetElementOperation ( )

inlinevirtualinherited

Definition at line 178 of file MechanicsMaterialModel.h.

◆ postNonlinearResetGaussPointOperation()

void AMP::Operator::GeneralCladThermalCreepPlasticModel::postNonlinearResetGaussPointOperation ( )

inlineoverridevirtual

Incrementing the gauss point count by unity is conducted in this function.

Reimplemented from AMP::Operator::MechanicsMaterialModel.

Definition at line 164 of file GeneralCladThermalCreepPlasticModel.h.

References d_gaussPtCnt.

◆ preLinearAssembly()

void AMP::Operator::GeneralCladThermalCreepPlasticModel::preLinearAssembly ( )

inlineoverridevirtual

This function is called just before the linear assembly.

Reimplemented from AMP::Operator::MechanicsMaterialModel.

Definition at line 115 of file GeneralCladThermalCreepPlasticModel.h.

References d_gaussPtCnt.

◆ preLinearElementOperation()

virtual void AMP::Operator::MechanicsMaterialModel::preLinearElementOperation ( )

inlinevirtualinherited

Definition at line 125 of file MechanicsMaterialModel.h.

◆ preLinearGaussPointOperation()

virtual void AMP::Operator::MechanicsMaterialModel::preLinearGaussPointOperation ( )

inlinevirtualinherited

Definition at line 129 of file MechanicsMaterialModel.h.

◆ preNonlinearAssembly()

void AMP::Operator::GeneralCladThermalCreepPlasticModel::preNonlinearAssembly ( )

inlineoverridevirtual

This is called before every non-linear assembly. Here the gauss point count and the total number of gauss points which have reached plasticity, are initialized to zero.

Reimplemented from AMP::Operator::MechanicsMaterialModel.

Definition at line 137 of file GeneralCladThermalCreepPlasticModel.h.

References d_gaussPtCnt, and Plastic_Gauss_Point.

◆ preNonlinearAssemblyElementOperation()

virtual void AMP::Operator::MechanicsMaterialModel::preNonlinearAssemblyElementOperation ( )

inlinevirtualinherited

Definition at line 160 of file MechanicsMaterialModel.h.

◆ preNonlinearAssemblyGaussPointOperation()

virtual void AMP::Operator::MechanicsMaterialModel::preNonlinearAssemblyGaussPointOperation ( )

inlinevirtualinherited

Definition at line 164 of file MechanicsMaterialModel.h.

◆ preNonlinearInit()

void AMP::Operator::GeneralCladThermalCreepPlasticModel::preNonlinearInit	(	bool	,
		bool
	)

overridevirtual

This function is called before the NonlinearInit is invoked. Here the memory assigned to all the gauss point vectors are cleared.

Reimplemented from AMP::Operator::MechanicsMaterialModel.

◆ preNonlinearInitElementOperation()

virtual void AMP::Operator::MechanicsMaterialModel::preNonlinearInitElementOperation ( )

inlinevirtualinherited

Definition at line 139 of file MechanicsMaterialModel.h.

◆ preNonlinearInitGaussPointOperation()

virtual void AMP::Operator::MechanicsMaterialModel::preNonlinearInitGaussPointOperation ( )

inlinevirtualinherited

Definition at line 143 of file MechanicsMaterialModel.h.

◆ preNonlinearJacobian()

void AMP::Operator::GeneralCladThermalCreepPlasticModel::preNonlinearJacobian ( )

inlineoverridevirtual

Initializes the gauss point count before the nonlinear jacobian is called.

Reimplemented from AMP::Operator::MechanicsMaterialModel.

Definition at line 184 of file GeneralCladThermalCreepPlasticModel.h.

References d_gaussPtCnt.

◆ preNonlinearJacobianElementOperation()

virtual void AMP::Operator::MechanicsMaterialModel::preNonlinearJacobianElementOperation ( )

inlinevirtualinherited

Definition at line 204 of file MechanicsMaterialModel.h.

◆ preNonlinearJacobianGaussPointOperation()

virtual void AMP::Operator::MechanicsMaterialModel::preNonlinearJacobianGaussPointOperation ( )

inlinevirtualinherited

Definition at line 208 of file MechanicsMaterialModel.h.

◆ preNonlinearReset()

void AMP::Operator::GeneralCladThermalCreepPlasticModel::preNonlinearReset ( )

inlineoverridevirtual

This function initializes the gauss point count for the nonlinear reset.

Reimplemented from AMP::Operator::MechanicsMaterialModel.

Definition at line 159 of file GeneralCladThermalCreepPlasticModel.h.

References d_gaussPtCnt.

◆ preNonlinearResetElementOperation()

virtual void AMP::Operator::MechanicsMaterialModel::preNonlinearResetElementOperation ( )

inlinevirtualinherited

Definition at line 176 of file MechanicsMaterialModel.h.

◆ preNonlinearResetGaussPointOperation()

virtual void AMP::Operator::MechanicsMaterialModel::preNonlinearResetGaussPointOperation ( )

inlinevirtualinherited

Definition at line 180 of file MechanicsMaterialModel.h.

◆ radialReturn()

void AMP::Operator::GeneralCladThermalCreepPlasticModel::radialReturn	(	const double *	stra_np1,
		double *	stre_np1,
		double *	ystre_np1,
		double *	eph_bar_plas_np1
	)

protected

Given the total strain, this function calculates the stress which is used to compute the internal force. The formula is as follows, \(f_{int} = {int}_{V} B^T \sigma dv\).

◆ setDebugPrintInfoLevel()

virtual void AMP::Operator::ElementPhysicsModel::setDebugPrintInfoLevel ( int print_level )

inlinevirtualinherited

Specify level of diagnostic information printed during iterations.

Parameters

[in] print_level zero prints none or minimal information, higher numbers provide increasingly verbose debugging information.

Definition at line 36 of file ElementPhysicsModel.h.

References AMP::Operator::ElementPhysicsModel::d_iDebugPrintInfoLevel.

◆ updateTime()

void AMP::Operator::MechanicsMaterialModel::updateTime ( double currTime )

inlineinherited

Definition at line 220 of file MechanicsMaterialModel.h.

References AMP::Operator::MechanicsMaterialModel::d_currentTime, and AMP::Operator::MechanicsMaterialModel::d_previousTime.

Member Data Documentation

◆ d_alpha

std::vector<double> AMP::Operator::GeneralCladThermalCreepPlasticModel::d_alpha

protected

A gauss point vector containing the Thermal Expansion Coefficient at each gauss point.

Definition at line 295 of file GeneralCladThermalCreepPlasticModel.h.

◆ d_checkCladOrPellet

bool AMP::Operator::MechanicsMaterialModel::d_checkCladOrPellet

protectedinherited

Definition at line 244 of file MechanicsMaterialModel.h.

Referenced by AMP::Operator::MechanicsMaterialModel::MechanicsMaterialModel().

◆ d_constitutiveMatrix

double AMP::Operator::GeneralCladThermalCreepPlasticModel::d_constitutiveMatrix[6][6]

protected

Stores the 6x6 constitutive matrix for each gauss point.

Definition at line 278 of file GeneralCladThermalCreepPlasticModel.h.

◆ d_currentTime

double AMP::Operator::MechanicsMaterialModel::d_currentTime

protectedinherited

The time at present.

Definition at line 229 of file MechanicsMaterialModel.h.

Referenced by AMP::Operator::MechanicsMaterialModel::MechanicsMaterialModel(), and AMP::Operator::MechanicsMaterialModel::updateTime().

◆ d_Delta_Time

double AMP::Operator::GeneralCladThermalCreepPlasticModel::d_Delta_Time

protected

The time increment (to be used in clad creep).

Definition at line 276 of file GeneralCladThermalCreepPlasticModel.h.

◆ d_E

std::vector<double> AMP::Operator::GeneralCladThermalCreepPlasticModel::d_E

protected

A gauss point vector containing the Young's Moduli at each gauss point.

Definition at line 290 of file GeneralCladThermalCreepPlasticModel.h.

◆ d_ElPl

std::vector<int> AMP::Operator::GeneralCladThermalCreepPlasticModel::d_ElPl

protected

A gauss point vector which contains the information whether a particular gauss has reached plastic state or still in the elastic regime.

Definition at line 335 of file GeneralCladThermalCreepPlasticModel.h.

◆ d_EquilibriumCreepStrain

std::vector<double> AMP::Operator::GeneralCladThermalCreepPlasticModel::d_EquilibriumCreepStrain

protected

A gauss point vector which stores the creep strain (scalar) at the previous equilibrium configuration.

Definition at line 321 of file GeneralCladThermalCreepPlasticModel.h.

◆ d_EquilibriumEffectivePlasticStrain

std::vector<double> AMP::Operator::GeneralCladThermalCreepPlasticModel::d_EquilibriumEffectivePlasticStrain

protected

A gauss point vector which stores the equivalent plastic strain at the previous equilibrium configuration.

Definition at line 317 of file GeneralCladThermalCreepPlasticModel.h.

◆ d_EquilibriumStrain

std::vector<double> AMP::Operator::GeneralCladThermalCreepPlasticModel::d_EquilibriumStrain

protected

A gauss point vector which stores the equilibrium strain.

Definition at line 310 of file GeneralCladThermalCreepPlasticModel.h.

◆ d_EquilibriumStress

std::vector<double> AMP::Operator::GeneralCladThermalCreepPlasticModel::d_EquilibriumStress

protected

A gauss point vector which stores the equilibrium stress.

Definition at line 307 of file GeneralCladThermalCreepPlasticModel.h.

◆ d_EquilibriumTemperature

std::vector<double> AMP::Operator::GeneralCladThermalCreepPlasticModel::d_EquilibriumTemperature

protected

A gauss point vector which stores the equilibrium temperature.

Definition at line 325 of file GeneralCladThermalCreepPlasticModel.h.

◆ d_EquilibriumThermalStrain

std::vector<double> AMP::Operator::GeneralCladThermalCreepPlasticModel::d_EquilibriumThermalStrain

protected

A gauss point vector containing the equilibrium Thermal Strain at each gauss point.

Definition at line 328 of file GeneralCladThermalCreepPlasticModel.h.

◆ d_EquilibriumYieldStress

std::vector<double> AMP::Operator::GeneralCladThermalCreepPlasticModel::d_EquilibriumYieldStress

protected

A gauss point vector which stores the yield stress at the previous equilibrium configuration.

Definition at line 313 of file GeneralCladThermalCreepPlasticModel.h.

◆ d_gaussPtCnt

unsigned int AMP::Operator::GeneralCladThermalCreepPlasticModel::d_gaussPtCnt

protected

A counter that keeps track of the number of the gauss points.

Definition at line 281 of file GeneralCladThermalCreepPlasticModel.h.

Referenced by postLinearGaussPointOperation(), postNonlinearAssemblyGaussPointOperation(), postNonlinearJacobianGaussPointOperation(), postNonlinearResetGaussPointOperation(), preLinearAssembly(), preNonlinearAssembly(), preNonlinearJacobian(), and preNonlinearReset().

◆ d_H

double AMP::Operator::GeneralCladThermalCreepPlasticModel::d_H

protected

Default value for the linear strain hardening coefficient.

Definition at line 268 of file GeneralCladThermalCreepPlasticModel.h.

◆ d_iDebugPrintInfoLevel

int AMP::Operator::ElementPhysicsModel::d_iDebugPrintInfoLevel

protectedinherited

Variable that controls the amount of diagnostic information that gets printed within this material model.

Definition at line 39 of file ElementPhysicsModel.h.

Referenced by AMP::Operator::ElementPhysicsModel::ElementPhysicsModel(), and AMP::Operator::ElementPhysicsModel::setDebugPrintInfoLevel().

◆ d_Is_Init_Called

bool AMP::Operator::GeneralCladThermalCreepPlasticModel::d_Is_Init_Called

protected

Checks whether init has been called already or not.

Definition at line 377 of file GeneralCladThermalCreepPlasticModel.h.

◆ d_jacobianReusesRadialReturn

bool AMP::Operator::GeneralCladThermalCreepPlasticModel::d_jacobianReusesRadialReturn

protected

Definition at line 375 of file GeneralCladThermalCreepPlasticModel.h.

◆ d_Lambda

std::vector<double> AMP::Operator::GeneralCladThermalCreepPlasticModel::d_Lambda

protected

A gauss point vector which contains a plasticity parameter at each gauss point.

Definition at line 332 of file GeneralCladThermalCreepPlasticModel.h.

◆ d_material

std::shared_ptr<AMP::Materials::Material> AMP::Operator::MechanicsMaterialModel::d_material

protectedinherited

Shared pointer to the materials object.

Definition at line 247 of file MechanicsMaterialModel.h.

Referenced by AMP::Operator::MechanicsMaterialModel::getMaterial(), and AMP::Operator::MechanicsMaterialModel::MechanicsMaterialModel().

◆ d_n

double AMP::Operator::GeneralCladThermalCreepPlasticModel::d_n

protected

Default value for the equivalent plastic strain exponent.

Definition at line 270 of file GeneralCladThermalCreepPlasticModel.h.

◆ d_Nu

std::vector<double> AMP::Operator::GeneralCladThermalCreepPlasticModel::d_Nu

protected

A gauss point vector containing the Poisson's Ratio at each gauss point.

Definition at line 293 of file GeneralCladThermalCreepPlasticModel.h.

◆ d_PlasticExponent

std::vector<double> AMP::Operator::GeneralCladThermalCreepPlasticModel::d_PlasticExponent

protected

A gauss point vector containing the equivalent plastic strain exponent at each gauss point.

Definition at line 302 of file GeneralCladThermalCreepPlasticModel.h.

◆ d_previousTime

double AMP::Operator::MechanicsMaterialModel::d_previousTime

protectedinherited

Time at the previous step.

Definition at line 231 of file MechanicsMaterialModel.h.

Referenced by AMP::Operator::MechanicsMaterialModel::MechanicsMaterialModel(), and AMP::Operator::MechanicsMaterialModel::updateTime().

◆ d_resetReusesRadialReturn

bool AMP::Operator::GeneralCladThermalCreepPlasticModel::d_resetReusesRadialReturn

protected

Definition at line 373 of file GeneralCladThermalCreepPlasticModel.h.

◆ d_Sig0

double AMP::Operator::GeneralCladThermalCreepPlasticModel::d_Sig0

protected

The initial Yield Stress.

Definition at line 272 of file GeneralCladThermalCreepPlasticModel.h.

◆ d_StrengthCoeff

std::vector<double> AMP::Operator::GeneralCladThermalCreepPlasticModel::d_StrengthCoeff

protected

A gauss point vector containing the linear strain hardening coefficient at each gauss point.

Definition at line 298 of file GeneralCladThermalCreepPlasticModel.h.

◆ d_tmp1CreepStrain

std::vector<double> AMP::Operator::GeneralCladThermalCreepPlasticModel::d_tmp1CreepStrain

protected

A gauss point vector which stores the creep strain (scalar) at the current configuration.

Definition at line 352 of file GeneralCladThermalCreepPlasticModel.h.

◆ d_tmp1EffectivePlasticStrain

std::vector<double> AMP::Operator::GeneralCladThermalCreepPlasticModel::d_tmp1EffectivePlasticStrain

protected

A gauss point vector which stores the equivalent plastic strain at the current configuration.

Definition at line 349 of file GeneralCladThermalCreepPlasticModel.h.

◆ d_tmp1Strain

std::vector<double> AMP::Operator::GeneralCladThermalCreepPlasticModel::d_tmp1Strain

protected

A gauss point vector which stores the strain at the current step.

Definition at line 343 of file GeneralCladThermalCreepPlasticModel.h.

◆ d_tmp1Stress

std::vector<double> AMP::Operator::GeneralCladThermalCreepPlasticModel::d_tmp1Stress

protected

A gauss point vector which stores the stress at the current step.

Definition at line 340 of file GeneralCladThermalCreepPlasticModel.h.

◆ d_tmp1Temperature

std::vector<double> AMP::Operator::GeneralCladThermalCreepPlasticModel::d_tmp1Temperature

protected

A gauss point vector which stores the temperature at the current step.

Definition at line 355 of file GeneralCladThermalCreepPlasticModel.h.

◆ d_tmp1ThermalStrain

std::vector<double> AMP::Operator::GeneralCladThermalCreepPlasticModel::d_tmp1ThermalStrain

protected

A gauss point vector containing the current Thermal Strain at each gauss point.

Definition at line 358 of file GeneralCladThermalCreepPlasticModel.h.

◆ d_tmp1YieldStress

std::vector<double> AMP::Operator::GeneralCladThermalCreepPlasticModel::d_tmp1YieldStress

protected

A gauss point vector which stores the yield stress at the current configuration.

Definition at line 345 of file GeneralCladThermalCreepPlasticModel.h.

◆ d_tmp2EffectivePlasticStrain

std::vector<double> AMP::Operator::GeneralCladThermalCreepPlasticModel::d_tmp2EffectivePlasticStrain

protected

A gauss point vector which stores the equivalent plastic strain at the current step while jacobian is being calculated.

Definition at line 368 of file GeneralCladThermalCreepPlasticModel.h.

◆ d_tmp2Stress

std::vector<double> AMP::Operator::GeneralCladThermalCreepPlasticModel::d_tmp2Stress

protected

A gauss point vector which stores the stress at the current step while jacobian is being calculated.

Definition at line 361 of file GeneralCladThermalCreepPlasticModel.h.

◆ d_tmp2YieldStress

std::vector<double> AMP::Operator::GeneralCladThermalCreepPlasticModel::d_tmp2YieldStress

protected

A gauss point vector which stores the yield stress at the current step while jacobian is being calculated.

Definition at line 364 of file GeneralCladThermalCreepPlasticModel.h.

◆ d_useContinuumTangent

bool AMP::Operator::MechanicsMaterialModel::d_useContinuumTangent

protectedinherited

Flag to check whether to use Continuum tangent is elasto plasticity or not.

Definition at line 241 of file MechanicsMaterialModel.h.

Referenced by AMP::Operator::MechanicsMaterialModel::MechanicsMaterialModel().

◆ d_UseCreepStrain

bool AMP::Operator::GeneralCladThermalCreepPlasticModel::d_UseCreepStrain

protected

This variable determines whether to use creep strain or not.

Definition at line 381 of file GeneralCladThermalCreepPlasticModel.h.

◆ d_useJaumannRate

bool AMP::Operator::MechanicsMaterialModel::d_useJaumannRate

protectedinherited

Flag to check whether to use Jaumann rate in updated lagrangian or not.

Definition at line 238 of file MechanicsMaterialModel.h.

Referenced by AMP::Operator::MechanicsMaterialModel::MechanicsMaterialModel().

◆ d_useMaterialsLibrary

bool AMP::Operator::MechanicsMaterialModel::d_useMaterialsLibrary

protectedinherited

A flag that is true if the AMP::materials library is used in this model and false otherwise.

Definition at line 233 of file MechanicsMaterialModel.h.

Referenced by AMP::Operator::MechanicsMaterialModel::MechanicsMaterialModel().

◆ d_UseThermalStrain

bool AMP::Operator::GeneralCladThermalCreepPlasticModel::d_UseThermalStrain

protected

This variable determines whether to use thermal strain or not.

Definition at line 379 of file GeneralCladThermalCreepPlasticModel.h.

◆ d_useUpdatedLagrangian

bool AMP::Operator::MechanicsMaterialModel::d_useUpdatedLagrangian

protectedinherited

Flag to check whether to use updated lagrangian or not.

Definition at line 236 of file MechanicsMaterialModel.h.

Referenced by AMP::Operator::MechanicsMaterialModel::MechanicsMaterialModel().

◆ default_alpha

double AMP::Operator::GeneralCladThermalCreepPlasticModel::default_alpha

protected

Default value of the thermal expansion coefficient.

Definition at line 274 of file GeneralCladThermalCreepPlasticModel.h.

◆ default_BURNUP

double AMP::Operator::GeneralCladThermalCreepPlasticModel::default_BURNUP

protected

The default burnup which is passed to the materials library when evalv is called.

Definition at line 261 of file GeneralCladThermalCreepPlasticModel.h.

◆ default_E

double AMP::Operator::GeneralCladThermalCreepPlasticModel::default_E

protected

The default value of the Young's Modulus.

Definition at line 264 of file GeneralCladThermalCreepPlasticModel.h.

◆ default_Nu

double AMP::Operator::GeneralCladThermalCreepPlasticModel::default_Nu

protected

The default value of the Poisson'd Ratio.

Definition at line 266 of file GeneralCladThermalCreepPlasticModel.h.

◆ default_OXYGEN_CONCENTRATION

double AMP::Operator::GeneralCladThermalCreepPlasticModel::default_OXYGEN_CONCENTRATION

protected

The default oxygen_concentration which is passed to the materials library when evalv is called.

Definition at line 257 of file GeneralCladThermalCreepPlasticModel.h.

◆ default_TEMPERATURE

double AMP::Operator::GeneralCladThermalCreepPlasticModel::default_TEMPERATURE

protected

The default temperature which is passed to the materials library when evalv is called.

Definition at line 253 of file GeneralCladThermalCreepPlasticModel.h.

◆ Plastic_Gauss_Point

unsigned int AMP::Operator::GeneralCladThermalCreepPlasticModel::Plastic_Gauss_Point

protected

How many gauss points have reached plasticity at the current stage.

Definition at line 286 of file GeneralCladThermalCreepPlasticModel.h.

Referenced by preNonlinearAssembly().

◆ Total_Gauss_Point

unsigned int AMP::Operator::GeneralCladThermalCreepPlasticModel::Total_Gauss_Point

protected

Total how many gauss points are there in this simulation.

Definition at line 284 of file GeneralCladThermalCreepPlasticModel.h.

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

src/operators/mechanics/GeneralCladThermalCreepPlasticModel.h

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ GeneralCladThermalCreepPlasticModel()

◆ ~GeneralCladThermalCreepPlasticModel()

Member Function Documentation

◆ compute_dE1_dsig_e()

◆ computeCreepStrain()

◆ computeEvalv()

◆ det_sign()

◆ getConstitutiveMatrix()

◆ getConstitutiveMatrixUpdatedLagrangian()

◆ getEffectiveStress()

◆ getEquivalentStrain()

◆ getExternalStress()

◆ getInternalStress()

◆ getInternalStress_UL()

◆ getMaterial()

◆ getStressForUpdatedLagrangian()

◆ globalReset()

◆ help_compute_E1()

◆ nonlinearInitGaussPointOperation()

◆ nonlinearJacobianGaussPointOperation()

◆ nonlinearJacobianGaussPointOperation_UL()

◆ nonlinearResetGaussPointOperation()

◆ nonlinearResetGaussPointOperation_UL()

◆ postLinearAssembly()

◆ postLinearElementOperation()

◆ postLinearGaussPointOperation()

◆ postNonlinearAssembly()

◆ postNonlinearAssemblyElementOperation()

◆ postNonlinearAssemblyGaussPointOperation()

◆ postNonlinearInit()

◆ postNonlinearInitElementOperation()

◆ postNonlinearInitGaussPointOperation()

◆ postNonlinearJacobian()

◆ postNonlinearJacobianElementOperation()

◆ postNonlinearJacobianGaussPointOperation()

◆ postNonlinearReset()

◆ postNonlinearResetElementOperation()

◆ postNonlinearResetGaussPointOperation()

◆ preLinearAssembly()

◆ preLinearElementOperation()

◆ preLinearGaussPointOperation()

◆ preNonlinearAssembly()

◆ preNonlinearAssemblyElementOperation()

◆ preNonlinearAssemblyGaussPointOperation()

◆ preNonlinearInit()

◆ preNonlinearInitElementOperation()

◆ preNonlinearInitGaussPointOperation()

◆ preNonlinearJacobian()

◆ preNonlinearJacobianElementOperation()

◆ preNonlinearJacobianGaussPointOperation()

◆ preNonlinearReset()

◆ preNonlinearResetElementOperation()

◆ preNonlinearResetGaussPointOperation()

◆ radialReturn()

◆ setDebugPrintInfoLevel()

◆ updateTime()

Member Data Documentation

◆ d_alpha

◆ d_checkCladOrPellet

◆ d_constitutiveMatrix

◆ d_currentTime

◆ d_Delta_Time

◆ d_E

◆ d_ElPl

◆ d_EquilibriumCreepStrain

◆ d_EquilibriumEffectivePlasticStrain

◆ d_EquilibriumStrain

◆ d_EquilibriumStress

◆ d_EquilibriumTemperature

◆ d_EquilibriumThermalStrain

◆ d_EquilibriumYieldStress

◆ d_gaussPtCnt

◆ d_H

◆ d_iDebugPrintInfoLevel

◆ d_Is_Init_Called