micromechanical::core::ContactLawBase< T > Struct Template Reference

Base class for contact laws. More...

#include <contactlaw.hpp>

Inheritance diagram for micromechanical::core::ContactLawBase< T >:

Public Member Functions
	ContactLawBase (const std::unordered_map< std::string, T > &props={})
	constructor
virtual	~ContactLawBase ()=default
	destructor
virtual std::vector< std::string >	symmetricContactScalars () const
	Symmetric contact scalar variables.
virtual std::vector< std::string >	symmetricContactVectors () const
	Symmetric contact vector variables.
virtual void	initialize (StateVariable< T > &sv)
	initialize the contact law
T	frictionCoefficient (const int idx, const StateVariable< T > &sv0, StateVariable< T > &sv) const
	calculate the friction coefficient combined with different criteria
Eigen::Matrix< T, 3, 3 >	forceDisplacement (const int idx, Eigen::Matrix< T, 3, 1 > &ddisp, Eigen::Matrix< T, 3, 3 > &Ke, const StateVariable< T > &sv0, StateVariable< T > &sv)
	integrate the force-displacement relation
virtual Eigen::Matrix< T, 3, 3 >	elasticStiffness (const int idx, T fn, const StateVariable< T > &sv0, StateVariable< T > &sv)=0
	Calculate the elastic stiffness matrix.
virtual T	CSL (const int idx, const StateVariable< T > &sv0, StateVariable< T > &sv) const
	calculate the critical state line
virtual T	yieldFunction (const int idx, const T fn, const T fr, const StateVariable< T > &sv0, StateVariable< T > &sv)
	Yield function for elastoplastic contact laws.
Eigen::Matrix< T, Eigen::Dynamic, Eigen::Dynamic >	yieldFunctions (const int idx, const Eigen::Matrix< T, Eigen::Dynamic, Eigen::Dynamic > &fn, const Eigen::Matrix< T, Eigen::Dynamic, Eigen::Dynamic > &fr, const StateVariable< T > &sv0, StateVariable< T > &sv)
	Calculate yield function for multiple times.
Eigen::Matrix< T, 3, 1 >	dfdforce0 (const int idx, const StateVariable< T > &sv0, StateVariable< T > &sv)
	Derivative of the yield function with respect to the force.
virtual Eigen::Matrix< T, 3, 1 >	dfdforce (const int idx, const StateVariable< T > &sv0, StateVariable< T > &sv)
	Derivative of the yield function with respect to the force.
virtual T	potentialFunction (const int idx, const T fn, const T fr, const StateVariable< T > &sv0, StateVariable< T > &sv)
	Potential function for elastoplastic contact laws.
Eigen::Matrix< T, 3, 1 >	dgdforce0 (const int idx, const StateVariable< T > &sv0, StateVariable< T > &sv)
	Derivative of the potential function with respect to the force.
virtual Eigen::Matrix< T, 3, 1 >	dgdforce (const int idx, const StateVariable< T > &sv0, StateVariable< T > &sv)
	Derivative of the potential function with respect to the force.
virtual Eigen::Matrix< T, 3, 1 >	plasticModulus0 (const int idx, const Eigen::Matrix< T, 3, 1 > &dgdforce, const StateVariable< T > &sv0, StateVariable< T > &sv)
	Plastic modulus for elastoplastic contact laws.
virtual T	plasticModulus (const int idx, const Eigen::Matrix< T, 3, 1 > &dgdforce, const StateVariable< T > &sv0, StateVariable< T > &sv)
	Plastic modulus for elastoplastic contact laws, including dgdforce.
T	plasticModulus1 (const int idx, const Eigen::Matrix< T, 3, 1 > &dgdforce, const StateVariable< T > &sv0, StateVariable< T > &sv)
	Plastic modulus for elastoplastic contact laws, including dgdforce.
virtual void	updateHardeningVariables (const int idx, const T dlambda, const Eigen::Matrix< T, 3, 1 > &ddispp, const StateVariable< T > &sv0, StateVariable< T > &sv)
	Update the hardening variables.
virtual void	yieldFunctionCorrection (const int idx, const Eigen::Matrix< T, 3, 3 > &Ke, const StateVariable< T > &sv0, StateVariable< T > &sv)
	Yield surface correction to keep the force state on the yield surface.
virtual void	maintainYieldSurface (const int idx, const Eigen::Matrix< T, 3, 1 > &ddisp, const Eigen::Matrix< T, 3, 1 > &dforce, const StateVariable< T > &sv0, StateVariable< T > &sv)
	Revert state variables from elastic state to maintain the force state on the yield surface.

Public Attributes
std::string	name = "Undefined"
	Name of the contact law.
std::shared_ptr< Material< T > >	material
	Material properties.
int	nstatev_custom = 0
	Number of custom state variables.
bool	plastic_displacement = false
	Flag to save the plastic displacement in the state variables.
std::shared_ptr< Options< T > >	options = std::make_shared<Options<T>>()
	options for the micromechanical model
std::shared_ptr< DebugVariable< T > >	debugVariable = std::make_shared<DebugVariable<T>>()
	debug variable
int	_phase = 0
	index of the phase
int	_step = 0
	current step
int	_mixedLoad = 0
	number of mixed load steps
int	_integration = 0
	number of integration steps
int	_increment = 0
	number of contact increments
int	_plasticCorrection = 0
	number of contact plastic corrections

Protected Member Functions
virtual Eigen::Matrix< T, 3, 3 >	integrate (const int idx, const Eigen::Matrix< T, 3, 1 > &ddisp, const Eigen::Matrix< T, 3, 3 > &Ke, const StateVariable< T > &sv0, StateVariable< T > &sv)
	integrate the force-displacement contact law, with a number of increments.
Eigen::Matrix< T, 3, 3 >	increment (const int idx, const Eigen::Matrix< T, 3, 1 > &ddisp, const Eigen::Matrix< T, 3, 3 > &Ke, const StateVariable< T > &sv0, StateVariable< T > &sv)
	Calculate one increment.
virtual Eigen::Matrix< T, 3, 3 >	stiffness (const int idx, const Eigen::Matrix< T, 3, 1 > &ddisp, const StateVariable< T > &sv0, StateVariable< T > &sv)=0
	calculate the elastoplastic stiffness matrix
virtual void	check (const int idx, const Eigen::Matrix< T, 3, 1 > &ddisp, const StateVariable< T > &sv0, StateVariable< T > &sv)
	check the convergence of the contact law
virtual void	preIntegration (const int idx, const Eigen::Matrix< T, 3, 1 > &ddisp, const StateVariable< T > &sv0, StateVariable< T > &sv)
	pre-processing before the integration
virtual void	postIntegration (const int idx, const Eigen::Matrix< T, 3, 1 > &ddisp, const StateVariable< T > &sv0, StateVariable< T > &sv)
	post-processing after the integration
virtual void	preIncrement (const int idx, const Eigen::Matrix< T, 3, 1 > &ddisp, const StateVariable< T > &sv0, StateVariable< T > &sv)
	pre-processing before the increment
virtual void	postIncrement (const int idx, const Eigen::Matrix< T, 3, 1 > &ddisp, const StateVariable< T > &sv0, StateVariable< T > &sv)
	post-processing after the increment
Eigen::Matrix< T, 3, 1 >	dfdforce1 (const int idx, const StateVariable< T > &sv0, StateVariable< T > &sv)
	Derivative of the yield function with respect to the force.
Eigen::Matrix< T, 3, 1 >	dgdforce1 (const int idx, const Eigen::Matrix< T, 3, 1 > &dfdforce, const StateVariable< T > &sv0, StateVariable< T > &sv)
	Derivative of the potential function with respect to the force.

Detailed Description

template<typename T>
struct micromechanical::core::ContactLawBase< T >

Base class for contact laws.

Constructor & Destructor Documentation

ContactLawBase()

template<typename T>

micromechanical::core::ContactLawBase< T >::ContactLawBase ( const std::unordered_map< std::string, T > & props = {} )

inlineexplicit

constructor

Parameters

props

material properties

~ContactLawBase()

template<typename T>

virtual micromechanical::core::ContactLawBase< T >::~ContactLawBase ( )

virtualdefault

destructor

Member Function Documentation

check()

template<typename T>

virtual void micromechanical::core::ContactLawBase< T >::check ( const int idx, const Eigen::Matrix< T, 3, 1 > & ddisp, const StateVariable< T > & sv0, StateVariable< T > & sv )

inlineprotectedvirtual

check the convergence of the contact law

Parameters

idx	index of the integration point
ddisp	displacement increment
sv0	initial state variable
sv	state variable

CSL()

template<typename T>

virtual T micromechanical::core::ContactLawBase< T >::CSL ( const int idx, const StateVariable< T > & sv0, StateVariable< T > & sv ) const

inlinevirtual

calculate the critical state line

Parameters

idx	index of the integration point
sv0	initial state variable
sv	state variable

Returns

the critical void ratio

Reimplemented in micromechanical::core::ExponentialBreakageCSL< T >, micromechanical::core::LogarithmicCSL< T >, and micromechanical::core::MCCCSL< T >.

dfdforce()

template<typename T>

virtual Eigen::Matrix< T, 3, 1 > micromechanical::core::ContactLawBase< T >::dfdforce ( const int idx, const StateVariable< T > & sv0, StateVariable< T > & sv )

inlinevirtual

Derivative of the yield function with respect to the force.

Parameters

idx	index of the integration point
sv0	initial state variable
sv	state variable

Returns

the derivative of the yield function with respect to the force

Reimplemented in micromechanical::contacts::CoulombContactLaw< T >, micromechanical::contacts::MCCContactLaw< T >, micromechanical::contacts::OSIMSANDContactLaw< T >, micromechanical::contacts::SANISANDContactLaw< T >, and micromechanical::contacts::SIMSANDContactLaw< T >.

Referenced by micromechanical::core::ElastoplasticContactLaw< T >::ExplicitCPA().

Here is the caller graph for this function:

dfdforce0()

template<typename T>

Eigen::Matrix< T, 3, 1 > micromechanical::core::ContactLawBase< T >::dfdforce0 ( const int idx, const StateVariable< T > & sv0, StateVariable< T > & sv )

inline

Derivative of the yield function with respect to the force.

Parameters

idx	index of the integration point
sv0	initial state variable
sv	state variable

Returns

the derivative of the yield function with respect to the force

dfdforce1()

template<typename T>

Eigen::Matrix< T, 3, 1 > micromechanical::core::ContactLawBase< T >::dfdforce1 ( const int idx, const StateVariable< T > & sv0, StateVariable< T > & sv )

inlineprotected

Derivative of the yield function with respect to the force.

Parameters

idx	index of the integration point
sv0	initial state variable
sv	state variable

Returns

the derivative of the yield function with respect to the force

Referenced by micromechanical::core::ElastoplasticContactLaw< T >::ExplicitCPA().

Here is the caller graph for this function:

dgdforce()

template<typename T>

virtual Eigen::Matrix< T, 3, 1 > micromechanical::core::ContactLawBase< T >::dgdforce ( const int idx, const StateVariable< T > & sv0, StateVariable< T > & sv )

inlinevirtual

Derivative of the potential function with respect to the force.

Parameters

idx	index of the integration point
sv0	initial state variable
sv	state variable

Returns

the derivative of the potential function with respect to the force

Reimplemented in micromechanical::contacts::MCCContactLaw< T >, micromechanical::contacts::OSIMSANDContactLaw< T >, micromechanical::contacts::SANISANDContactLaw< T >, and micromechanical::contacts::SIMSANDContactLaw< T >.

Referenced by micromechanical::core::ElastoplasticContactLaw< T >::ExplicitCPA().

Here is the caller graph for this function:

dgdforce0()

template<typename T>

Eigen::Matrix< T, 3, 1 > micromechanical::core::ContactLawBase< T >::dgdforce0 ( const int idx, const StateVariable< T > & sv0, StateVariable< T > & sv )

inline

Derivative of the potential function with respect to the force.

Parameters

idx	index of the integration point
sv0	initial state variable
sv	state variable

Returns

the derivative of the potential function with respect to the force

dgdforce1()

template<typename T>

Eigen::Matrix< T, 3, 1 > micromechanical::core::ContactLawBase< T >::dgdforce1 ( const int idx, const Eigen::Matrix< T, 3, 1 > & dfdforce, const StateVariable< T > & sv0, StateVariable< T > & sv )

inlineprotected

Derivative of the potential function with respect to the force.

Parameters

idx	index of the integration point
dfdforce	derivative of the yield function with respect to the force
sv0	initial state variable
sv	state variable

Returns

the derivative of the potential function with respect to the force

Referenced by micromechanical::core::ElastoplasticContactLaw< T >::ExplicitCPA().

Here is the caller graph for this function:

elasticStiffness()

template<typename T>

virtual Eigen::Matrix< T, 3, 3 > micromechanical::core::ContactLawBase< T >::elasticStiffness ( const int idx, T fn, const StateVariable< T > & sv0, StateVariable< T > & sv )

pure virtual

Calculate the elastic stiffness matrix.

Parameters

idx	index of the integration point
fn	normal force
sv0	initial state variable
sv	state variable

Returns

the elastic stiffness matrix

Implemented in micromechanical::contacts::HypoplasticContactLaw< T >, micromechanical::core::ChangStiffness< T >, micromechanical::core::ConstantStiffness< T >, and micromechanical::core::RichartStiffness< T >.

forceDisplacement()

template<typename T>

Eigen::Matrix< T, 3, 3 > micromechanical::core::ContactLawBase< T >::forceDisplacement ( const int idx, Eigen::Matrix< T, 3, 1 > & ddisp, Eigen::Matrix< T, 3, 3 > & Ke, const StateVariable< T > & sv0, StateVariable< T > & sv )

inline

integrate the force-displacement relation

Parameters

idx	index of the integration point
ddisp	displacement increment
Ke	elastic stiffness matrix
sv0	initial state variable
sv	state variable

Returns

the elastoplastic stiffness matrix

frictionCoefficient()

template<typename T>

T micromechanical::core::ContactLawBase< T >::frictionCoefficient ( const int idx, const StateVariable< T > & sv0, StateVariable< T > & sv ) const

inline

calculate the friction coefficient combined with different criteria

Referenced by micromechanical::contacts::HypoplasticContactLaw< T >::coefficients(), micromechanical::contacts::CoulombContactLaw< T >::dfdforce(), micromechanical::core::CSLBase< T >::tanphip(), micromechanical::core::CSLBase< T >::tanphipt(), micromechanical::contacts::CoulombContactLaw< T >::yieldFunction(), and micromechanical::contacts::SANISANDContactLaw< T >::yieldFunction().

Here is the caller graph for this function:

increment()

template<typename T>

Eigen::Matrix< T, 3, 3 > micromechanical::core::ContactLawBase< T >::increment ( const int idx, const Eigen::Matrix< T, 3, 1 > & ddisp, const Eigen::Matrix< T, 3, 3 > & Ke, const StateVariable< T > & sv0, StateVariable< T > & sv )

inlineprotected

Calculate one increment.

Parameters

idx	index of the integration point
ddisp	displacement increment
Ke	elastoplastic stiffness matrix
sv0	initial state variable
sv	state variable

Returns

the elastoplastic stiffness matrix

initialize()

template<typename T>

virtual void micromechanical::core::ContactLawBase< T >::initialize ( StateVariable< T > & sv )

inlinevirtual

initialize the contact law

Parameters

sv	state variable

Reimplemented in micromechanical::contacts::ExponentialContactLaw< T >, micromechanical::contacts::HyperbolicContactLaw< T >, micromechanical::contacts::HypoplasticContactLaw< T >, micromechanical::contacts::MCCContactLaw< T >, micromechanical::contacts::OSIMSANDContactLaw< T >, micromechanical::contacts::SANISANDContactLaw< T >, and micromechanical::contacts::SIMSANDContactLaw< T >.

integrate()

template<typename T>

virtual Eigen::Matrix< T, 3, 3 > micromechanical::core::ContactLawBase< T >::integrate ( const int idx, const Eigen::Matrix< T, 3, 1 > & ddisp, const Eigen::Matrix< T, 3, 3 > & Ke, const StateVariable< T > & sv0, StateVariable< T > & sv )

inlineprotectedvirtual

integrate the force-displacement contact law, with a number of increments.

Parameters

idx	index of the integration point
ddisp	displacement increment
Ke	elastic stiffness matrix
sv0	initial state variable
sv	state variable

Returns

the elastoplastic stiffness matrix

maintainYieldSurface()

template<typename T>

virtual void micromechanical::core::ContactLawBase< T >::maintainYieldSurface ( const int idx, const Eigen::Matrix< T, 3, 1 > & ddisp, const Eigen::Matrix< T, 3, 1 > & dforce, const StateVariable< T > & sv0, StateVariable< T > & sv )

inlinevirtual

Revert state variables from elastic state to maintain the force state on the yield surface.

Parameters

idx	index of the integration point
ddisp	displacement increment
dforce	force increment
sv0	initial state variable
sv	state variable

Reimplemented in micromechanical::contacts::SANISANDContactLaw< T >.

Referenced by micromechanical::core::ElastoplasticContactLaw< T >::ExplicitCPA().

Here is the caller graph for this function:

plasticModulus()

template<typename T>

virtual T micromechanical::core::ContactLawBase< T >::plasticModulus ( const int idx, const Eigen::Matrix< T, 3, 1 > & dgdforce, const StateVariable< T > & sv0, StateVariable< T > & sv )

inlinevirtual

Plastic modulus for elastoplastic contact laws, including dgdforce.

Parameters

idx	index of the integration point
dgdforce	derivative of the potential function with respect to the force
sv0	initial state variable
sv	state variable

Returns

the plastic modulus

Reimplemented in micromechanical::contacts::SANISANDContactLaw< T >.

plasticModulus0()

template<typename T>

virtual Eigen::Matrix< T, 3, 1 > micromechanical::core::ContactLawBase< T >::plasticModulus0 ( const int idx, const Eigen::Matrix< T, 3, 1 > & dgdforce, const StateVariable< T > & sv0, StateVariable< T > & sv )

inlinevirtual

Plastic modulus for elastoplastic contact laws.

Parameters

idx	index of the integration point
dgdforce	derivative of the potential function with respect to the force
sv0	initial state variable
sv	state variable

Returns

the plastic modulus

Reimplemented in micromechanical::contacts::MCCContactLaw< T >, micromechanical::contacts::OSIMSANDContactLaw< T >, and micromechanical::contacts::SIMSANDContactLaw< T >.

plasticModulus1()

template<typename T>

T micromechanical::core::ContactLawBase< T >::plasticModulus1 ( const int idx, const Eigen::Matrix< T, 3, 1 > & dgdforce, const StateVariable< T > & sv0, StateVariable< T > & sv )

inline

Plastic modulus for elastoplastic contact laws, including dgdforce.

Parameters

idx	index of the integration point
dgdforce	derivative of the potential function with respect to the force
sv0	initial state variable
sv	state variable

Returns

the plastic modulus

Referenced by micromechanical::core::ElastoplasticContactLaw< T >::ExplicitCPA().

Here is the caller graph for this function:

postIncrement()

template<typename T>

virtual void micromechanical::core::ContactLawBase< T >::postIncrement ( const int idx, const Eigen::Matrix< T, 3, 1 > & ddisp, const StateVariable< T > & sv0, StateVariable< T > & sv )

inlineprotectedvirtual

post-processing after the increment

Parameters

idx	index of the integration point
ddisp	displacement increment
sv0	initial state variable
sv	state variable

Reimplemented in micromechanical::core::NonlinearElasticContactLaw< T >.

postIntegration()

template<typename T>

virtual void micromechanical::core::ContactLawBase< T >::postIntegration ( const int idx, const Eigen::Matrix< T, 3, 1 > & ddisp, const StateVariable< T > & sv0, StateVariable< T > & sv )

inlineprotectedvirtual

post-processing after the integration

Parameters

idx	index of the integration point
ddisp	displacement increment
sv0	initial state variable
sv	state variable

potentialFunction()

template<typename T>

virtual T micromechanical::core::ContactLawBase< T >::potentialFunction ( const int idx, const T fn, const T fr, const StateVariable< T > & sv0, StateVariable< T > & sv )

inlinevirtual

Potential function for elastoplastic contact laws.

Parameters

idx	index of the integration point
fn	normal force
fr	shear force
sv0	initial state variable
sv	state variable

Returns

the yield function

preIncrement()

template<typename T>

virtual void micromechanical::core::ContactLawBase< T >::preIncrement ( const int idx, const Eigen::Matrix< T, 3, 1 > & ddisp, const StateVariable< T > & sv0, StateVariable< T > & sv )

inlineprotectedvirtual

pre-processing before the increment

Parameters

idx	index of the integration point
ddisp	displacement increment
sv0	initial state variable
sv	state variable

preIntegration()

template<typename T>

virtual void micromechanical::core::ContactLawBase< T >::preIntegration ( const int idx, const Eigen::Matrix< T, 3, 1 > & ddisp, const StateVariable< T > & sv0, StateVariable< T > & sv )

inlineprotectedvirtual

pre-processing before the integration

Parameters

idx	index of the integration point
ddisp	displacement increment
sv0	initial state variable
sv	state variable

Reimplemented in micromechanical::contacts::HypoplasticContactLaw< T >.

stiffness()

template<typename T>

virtual Eigen::Matrix< T, 3, 3 > micromechanical::core::ContactLawBase< T >::stiffness ( const int idx, const Eigen::Matrix< T, 3, 1 > & ddisp, const StateVariable< T > & sv0, StateVariable< T > & sv )

protectedpure virtual

calculate the elastoplastic stiffness matrix

Parameters

idx	index of the integration point
ddisp	displacement increment
sv0	initial state variable
sv	state variable

Returns

the elastoplastic stiffness matrix

Implemented in micromechanical::contacts::ElasticContactLaw< T >, micromechanical::contacts::ExponentialContactLaw< T >, micromechanical::contacts::HyperbolicContactLaw< T >, micromechanical::contacts::HypoplasticContactLaw< T >, micromechanical::core::ElastoplasticContactLaw< T >, and micromechanical::core::NonlinearElasticContactLaw< T >.

symmetricContactScalars()

template<typename T>

virtual std::vector< std::string > micromechanical::core::ContactLawBase< T >::symmetricContactScalars ( ) const

inlinevirtual

Symmetric contact scalar variables.

symmetricContactVectors()

template<typename T>

virtual std::vector< std::string > micromechanical::core::ContactLawBase< T >::symmetricContactVectors ( ) const

inlinevirtual

Symmetric contact vector variables.

updateHardeningVariables()

template<typename T>

virtual void micromechanical::core::ContactLawBase< T >::updateHardeningVariables ( const int idx, const T dlambda, const Eigen::Matrix< T, 3, 1 > & ddispp, const StateVariable< T > & sv0, StateVariable< T > & sv )

inlinevirtual

Update the hardening variables.

Parameters

idx	index of the integration point
dlambda	plastic multiplier
ddispp	plastic displacement increment
sv0	initial state variable
sv	state variable

Reimplemented in micromechanical::contacts::MCCContactLaw< T >, and micromechanical::contacts::SANISANDContactLaw< T >.

Referenced by micromechanical::core::ElastoplasticContactLaw< T >::ExplicitCPA().

Here is the caller graph for this function:

yieldFunction()

template<typename T>

virtual T micromechanical::core::ContactLawBase< T >::yieldFunction ( const int idx, const T fn, const T fr, const StateVariable< T > & sv0, StateVariable< T > & sv )

inlinevirtual

Yield function for elastoplastic contact laws.

Parameters

idx	index of the integration point
fn	normal force
fr	shear force
sv0	initial state variable
sv	state variable

Returns

the yield function

Reimplemented in micromechanical::contacts::CoulombContactLaw< T >, micromechanical::contacts::MCCContactLaw< T >, micromechanical::contacts::OSIMSANDContactLaw< T >, micromechanical::contacts::SANISANDContactLaw< T >, and micromechanical::contacts::SIMSANDContactLaw< T >.

Referenced by micromechanical::core::ElastoplasticContactLaw< T >::ExplicitCPA().

Here is the caller graph for this function:

yieldFunctionCorrection()

template<typename T>

virtual void micromechanical::core::ContactLawBase< T >::yieldFunctionCorrection ( const int idx, const Eigen::Matrix< T, 3, 3 > & Ke, const StateVariable< T > & sv0, StateVariable< T > & sv )

inlinevirtual

Yield surface correction to keep the force state on the yield surface.

Parameters

idx	index of the integration point
Ke	stiffness matrix
sv0	initial state variable
sv	state variable

Referenced by micromechanical::core::ElastoplasticContactLaw< T >::ExplicitCPA().

Here is the caller graph for this function:

yieldFunctions()

template<typename T>

Eigen::Matrix< T, Eigen::Dynamic, Eigen::Dynamic > micromechanical::core::ContactLawBase< T >::yieldFunctions ( const int idx, const Eigen::Matrix< T, Eigen::Dynamic, Eigen::Dynamic > & fn, const Eigen::Matrix< T, Eigen::Dynamic, Eigen::Dynamic > & fr, const StateVariable< T > & sv0, StateVariable< T > & sv )

inline

Calculate yield function for multiple times.

Parameters

idx	index of the integration point
fn	normal force
fr	shear force
sv0	initial state variable
sv	state variable

Returns

the yield function

Member Data Documentation

_increment

template<typename T>

int micromechanical::core::ContactLawBase< T >::_increment = 0

number of contact increments

Referenced by micromechanical::core::ElastoplasticContactLaw< T >::ExplicitCPA().

_integration

template<typename T>

int micromechanical::core::ContactLawBase< T >::_integration = 0

number of integration steps

Referenced by micromechanical::core::ElastoplasticContactLaw< T >::ExplicitCPA().

_mixedLoad

template<typename T>

int micromechanical::core::ContactLawBase< T >::_mixedLoad = 0

number of mixed load steps

Referenced by micromechanical::core::ElastoplasticContactLaw< T >::ExplicitCPA().

_phase

template<typename T>

int micromechanical::core::ContactLawBase< T >::_phase = 0

index of the phase

Referenced by micromechanical::core::ElastoplasticContactLaw< T >::ExplicitCPA().

_plasticCorrection

template<typename T>

int micromechanical::core::ContactLawBase< T >::_plasticCorrection = 0

number of contact plastic corrections

Referenced by micromechanical::core::ElastoplasticContactLaw< T >::ExplicitCPA().

_step

template<typename T>

int micromechanical::core::ContactLawBase< T >::_step = 0

current step

Referenced by micromechanical::core::ElastoplasticContactLaw< T >::ExplicitCPA().

debugVariable

template<typename T>

std::shared_ptr<DebugVariable<T> > micromechanical::core::ContactLawBase< T >::debugVariable = std::make_shared<DebugVariable<T>>()

debug variable

Referenced by micromechanical::core::ElastoplasticContactLaw< T >::ExplicitCPA().

material

template<typename T>

std::shared_ptr<Material<T> > micromechanical::core::ContactLawBase< T >::material

Material properties.

Referenced by micromechanical::contacts::MCCContactLaw< T >::checkConvergence(), micromechanical::contacts::HypoplasticContactLaw< T >::coefficients(), micromechanical::core::ExponentialBreakageCSL< T >::CSL(), micromechanical::core::LogarithmicCSL< T >::CSL(), micromechanical::core::MCCCSL< T >::CSL(), micromechanical::contacts::MCCContactLaw< T >::dfdforce(), micromechanical::contacts::SANISANDContactLaw< T >::dfdforce(), micromechanical::contacts::MCCContactLaw< T >::dgdforce(), micromechanical::contacts::OSIMSANDContactLaw< T >::dgdforce(), micromechanical::contacts::SANISANDContactLaw< T >::dgdforce(), micromechanical::contacts::SIMSANDContactLaw< T >::dgdforce(), micromechanical::contacts::HypoplasticContactLaw< T >::elasticStiffness(), micromechanical::core::ChangStiffness< T >::elasticStiffness(), micromechanical::core::ConstantStiffness< T >::elasticStiffness(), micromechanical::core::RichartStiffness< T >::elasticStiffness(), micromechanical::contacts::HypoplasticContactLaw< T >::initialize(), micromechanical::contacts::MCCContactLaw< T >::initialize(), micromechanical::contacts::SANISANDContactLaw< T >::initialize(), micromechanical::contacts::SANISANDContactLaw< T >::maintainYieldSurface(), micromechanical::contacts::SANISANDContactLaw< T >::plasticModulus(), micromechanical::contacts::MCCContactLaw< T >::plasticModulus0(), micromechanical::contacts::OSIMSANDContactLaw< T >::plasticModulus0(), micromechanical::contacts::SIMSANDContactLaw< T >::plasticModulus0(), micromechanical::contacts::ExponentialContactLaw< T >::stiffness(), micromechanical::contacts::HyperbolicContactLaw< T >::stiffness(), micromechanical::contacts::HypoplasticContactLaw< T >::stiffness(), micromechanical::contacts::MCCContactLaw< T >::updateHardeningVariables(), micromechanical::contacts::MCCContactLaw< T >::yieldFunction(), micromechanical::contacts::OSIMSANDContactLaw< T >::yieldFunction(), micromechanical::contacts::SANISANDContactLaw< T >::yieldFunction(), and micromechanical::contacts::SIMSANDContactLaw< T >::yieldFunction().

name

template<typename T>

std::string micromechanical::core::ContactLawBase< T >::name = "Undefined"

Name of the contact law.

nstatev_custom

template<typename T>

int micromechanical::core::ContactLawBase< T >::nstatev_custom = 0

Number of custom state variables.

options

template<typename T>

std::shared_ptr<Options<T> > micromechanical::core::ContactLawBase< T >::options = std::make_shared<Options<T>>()

options for the micromechanical model

Referenced by micromechanical::core::LogarithmicCSL< T >::CSL(), micromechanical::core::ChangStiffness< T >::elasticStiffness(), micromechanical::core::ElastoplasticContactLaw< T >::ExplicitCPA(), micromechanical::contacts::SANISANDContactLaw< T >::initialize(), micromechanical::contacts::SANISANDContactLaw< T >::maintainYieldSurface(), micromechanical::contacts::SANISANDContactLaw< T >::plasticModulus(), micromechanical::contacts::OSIMSANDContactLaw< T >::plasticModulus0(), micromechanical::contacts::SIMSANDContactLaw< T >::plasticModulus0(), micromechanical::contacts::OSIMSANDContactLaw< T >::yieldFunction(), and micromechanical::contacts::SIMSANDContactLaw< T >::yieldFunction().

plastic_displacement

template<typename T>

bool micromechanical::core::ContactLawBase< T >::plastic_displacement = false

Flag to save the plastic displacement in the state variables.

---

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

• include/micromechanical/core/contactlaw.hpp