Exponential contact law. More...

#include <exponential.hpp>

Inheritance diagram for micromechanical::contacts::ExponentialContactLaw< T >:

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Collaboration diagram for micromechanical::contacts::ExponentialContactLaw< T >:

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Public Member Functions
	ExponentialContactLaw (const std::map< std::string, T > &props={})

void	initialize (StateVariable< T > &sv) override
	initialize the contact law

Public Member Functions inherited from micromechanical::core::ContactLawBase< T >
	ContactLawBase (const std::map< std::string, T > &props={})
	constructor

virtual	~ContactLawBase ()=default
	destructor

virtual std::vector< std::string >	symmetricContactScalars ()
	Symmetric contact scalar variables.

virtual std::vector< std::string >	symmetricContactVectors ()
	Symmetric contact vector variables.

ContactLawBase &	operator= (const ContactLawBase &other)
	move operator

T	frictionCoefficient (int idx, const StateVariable< T > &sv0, const StateVariable< T > &sv)
	calculate the friction coefficient combined with different criteria

Eigen::Matrix< T, 3, 3 >	forceDisplacement (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

Public Member Functions inherited from micromechanical::core::ChangStiffness< T >
Eigen::Matrix< T, 3, 3 >	elasticStiffness (int idx, T fn, const StateVariable< T > &sv0, const StateVariable< T > &sv) override
	Calculate the elastic stiffness matrix.

Public Member Functions inherited from micromechanical::core::ExponentialBreakageCSL< T >
T	CSL (int idx, const StateVariable< T > &sv0, StateVariable< T > &sv) override
	calculate the critical state line

Public Attributes
std::string	name = "Exponential"

Public Attributes inherited from micromechanical::core::NonlinearElasticContactLaw< T >
std::string	type = "NonlinearElastic"
	Type of the contact law.

Public Attributes inherited from micromechanical::core::ContactLawBase< T >
std::shared_ptr< Material< T > >	material
	Material properties.

std::string	name = "Undefined"
	Name of the contact law.

std::string	type = "Undefined"
	Type of the contact law.

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::shared_ptr<Options<T>>(new Options<T>())
	options for the micromechanical model

std::shared_ptr< DebugVariable< T > >	debugVariable = std::shared_ptr<DebugVariable<T>>(new 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
Eigen::Matrix< T, 3, 3 >	stiffness (int idx, const Eigen::Matrix< T, 3, 1 > &ddisp, const StateVariable< T > &sv0, StateVariable< T > &sv) override
	calculate the elastoplastic stiffness matrix

Protected Member Functions inherited from micromechanical::core::NonlinearElasticContactLaw< T >
void	postIncrement (int idx, const Eigen::Matrix< T, 3, 1 > &ddisp, const StateVariable< T > &sv0, StateVariable< T > &sv) override
	post-processing after the increment

Eigen::Matrix< T, 3, 3 >	integrate (int idx, const Eigen::Matrix< T, 3, 1 > &ddisp, const Eigen::Matrix< T, 3, 3 > &Ke, const StateVariable< T > &sv0, StateVariable< T > &sv) override
	integrate the force-displacement contact law, with a number of increments.

Protected Member Functions inherited from micromechanical::core::ContactLawBase< T >
Eigen::Matrix< T, 3, 3 >	increment (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 void	check (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 (int idx, const Eigen::Matrix< T, 3, 1 > &ddisp, const StateVariable< T > &sv0, StateVariable< T > &sv)
	pre-processing before the integration

virtual void	postIntegration (int idx, const Eigen::Matrix< T, 3, 1 > &ddisp, const StateVariable< T > &sv0, StateVariable< T > &sv)
	post-processing after the integration

virtual void	preIncrement (int idx, const Eigen::Matrix< T, 3, 1 > &ddisp, const StateVariable< T > &sv0, StateVariable< T > &sv)
	pre-processing before the increment

Protected Member Functions inherited from micromechanical::core::CSLBase< T >
T	tanphip (int idx, const StateVariable< T > &sv0, StateVariable< T > &sv)

T	tanphipt (int idx, const StateVariable< T > &sv0, StateVariable< T > &sv)

Detailed Description

template<typename T>
struct micromechanical::contacts::ExponentialContactLaw< T >

Exponential contact law.

Note: 286 state variables

Constructor & Destructor Documentation

◆ ExponentialContactLaw()

template<typename T>

micromechanical::contacts::ExponentialContactLaw< T >::ExponentialContactLaw ( const std::map< std::string, T > & props = {} )

inlineexplicit

Member Function Documentation

◆ initialize()

template<typename T>

void micromechanical::contacts::ExponentialContactLaw< T >::initialize ( StateVariable< T > & sv )

inlineoverridevirtual

initialize the contact law

Parameters

sv	state variable

Reimplemented from micromechanical::core::ContactLawBase< T >.

References micromechanical::core::ExponentialBreakageCSL< T >::CSL().

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◆ stiffness()

template<typename T>

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

inlineoverrideprotectedvirtual

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

Todo: Fix calculation of Krn for exponential contact law

Implements micromechanical::core::NonlinearElasticContactLaw< T >.

References micromechanical::core::ExponentialBreakageCSL< T >::CSL(), micromechanical::core::StateVariable< T >::feta(), micromechanical::core::StateVariable< T >::fnc(), micromechanical::core::StateVariable< T >::force, micromechanical::core::ContactLawBase< T >::material, micromechanical::core::StateVariable< T >::scalars, micromechanical::core::CSLBase< T >::tanphip(), micromechanical::core::CSLBase< T >::tanphipt(), and micromechanical::core::StateVariable< T >::ur().

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Member Data Documentation

◆ name

template<typename T>

std::string micromechanical::contacts::ExponentialContactLaw< T >::name = "Exponential"

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

include/micromechanical/contacts/exponential.hpp

Public Member Functions

Public Attributes

Protected Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ ExponentialContactLaw()

Member Function Documentation

◆ initialize()

◆ stiffness()

Member Data Documentation

◆ name