load phase More...

#include <load.hpp>

Collaboration diagram for constitutive::LoadPhase< T >:

Public Member Functions
	LoadPhase (Eigen::Matrix< T, 6, 1 > initial, Eigen::Matrix< T, 6, 1 > final, Eigen::Matrix< T, 6, 1 > control, Eigen::Matrix< T, 6, 1 > total, const int steps=100, const T b=-1.0, const std::string &true_triaxial_control_type="none", const int &true_triaxial_major_axis=1, const int &true_triaxial_intermediate_axis=2)
	constructor
	LoadPhase ()
	default constructor
virtual	~LoadPhase ()=default
	destructor
bool	isCompatibleWith (const LoadPhase &previous) const
	check if the load phase is compatible with the previous load phase. A load phase is compatible with the previous load phase if initial stress/strain is the same as the final stress/strain of the previous load phase for the same control variable.
void	makeCompatibleWith (const LoadPhase &previous)
	make the load phase compatible with the previous load phase. The initial stress/strain is set to the final stress/strain of the previous load phase for the same control variable.
bool	isIsotropic (const T tol=1e-6) const
	check if the load phase is isotropic
virtual void	initialize (StateVariable< T > &sv) const
	initialize the state variables
std::tuple< Eigen::Matrix< T, 6, 1 >, Eigen::Matrix< T, 6, 1 > >	finalize (const Eigen::Matrix< T, 6, 6 > &K, const Eigen::Matrix< T, 6, 6 > &S, const Eigen::Matrix< T, 6, 6 > &E, const StateVariable< T > &sv0, StateVariable< T > &sv) const
	finalize the mixed load

Public Attributes
Eigen::Matrix< T, 6, 1 >	initial
	initial loading
Eigen::Matrix< T, 6, 1 >	final
	final loading
Eigen::Matrix< T, 6, 1 >	control
	control type of the load, 0 for stress, 1 for strain, -1 for ignored
Eigen::Matrix< T, 6, 1 >	total
	control whether the load is total or incremental, 0 for incremental, 1 for total
int	steps
	number of steps
T	b = -1.0
	intermediate stress ratio
std::string	true_triaxial_control_type
int	true_triaxial_major_axis = 1
	Major axis for true triaxial loading.
int	true_triaxial_intermediate_axis = 2
	Intermediate axis for true triaxial loading.

Detailed Description

template<typename T>
struct constitutive::LoadPhase< T >

load phase

Constructor & Destructor Documentation

◆ LoadPhase() [1/2]

template<typename T>

constitutive::LoadPhase< T >::LoadPhase	(	Eigen::Matrix< T, 6, 1 >	initial,
		Eigen::Matrix< T, 6, 1 >	final,
		Eigen::Matrix< T, 6, 1 >	control,
		Eigen::Matrix< T, 6, 1 >	total,
		const int	steps = 100,
		const T	b = -1.0,
		const std::string &	true_triaxial_control_type = "none",
		const int &	true_triaxial_major_axis = 1,
		const int &	true_triaxial_intermediate_axis = 2 )

inline

constructor

Parameters

initial	initial loading
final	final loading
control	control variable for the load, 0 for stress, 1 for strain, -1 for ignored
total	control whether the load is total or incremental, 0 for incremental, 1 for total
steps	number of steps
b	intermediate stress ratio
true_triaxial_control_type	Control type for true triaxial loading, "none" for no control, "sig1", "sig2", or sig3" for controlling the principal stresses, "no_epsv" for controlling the intermediate principal stress without generating volumetric strain
true_triaxial_major_axis	major axis for true triaxial loading
true_triaxial_intermediate_axis	intermediate axis for true triaxial loading

References b, control, final, initial, steps, total, true_triaxial_control_type, true_triaxial_intermediate_axis, and true_triaxial_major_axis.

Referenced by isCompatibleWith(), and makeCompatibleWith().

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◆ LoadPhase() [2/2]

template<typename T>

constitutive::LoadPhase< T >::LoadPhase ( )

inline

default constructor

References control, final, initial, steps, and total.

◆ ~LoadPhase()

template<typename T>

virtual constitutive::LoadPhase< T >::~LoadPhase ( )

virtualdefault

destructor

Member Function Documentation

◆ finalize()

template<typename T>

std::tuple< Eigen::Matrix< T, 6, 1 >, Eigen::Matrix< T, 6, 1 > > constitutive::LoadPhase< T >::finalize	(	const Eigen::Matrix< T, 6, 6 > &	K,
		const Eigen::Matrix< T, 6, 6 > &	S,
		const Eigen::Matrix< T, 6, 6 > &	E,
		const StateVariable< T > &	sv0,
		StateVariable< T > &	sv ) const

inline

finalize the mixed load

Parameters

K	elastic stiffness matrix
S	stress control matrix
E	strain control matrix
sv0	state variables at the beginning of the increment
sv	state variables at the end of the increment

Returns: extra stress and strain increments to be added

References b, constitutive::StateVariable< T >::eps, and constitutive::StateVariable< T >::sig.

◆ initialize()

template<typename T>

virtual void constitutive::LoadPhase< T >::initialize ( StateVariable< T > & sv ) const

inlinevirtual

initialize the state variables

Parameters

sv	state variables

References constitutive::StateVariable< T >::eps, and constitutive::StateVariable< T >::sig_().

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◆ isCompatibleWith()

template<typename T>

bool constitutive::LoadPhase< T >::isCompatibleWith ( const LoadPhase< T > & previous ) const

inline

check if the load phase is compatible with the previous load phase. A load phase is compatible with the previous load phase if initial stress/strain is the same as the final stress/strain of the previous load phase for the same control variable.

Parameters

previous previous load phase

Returns: true if compatible, false otherwise

References control, final, LoadPhase(), and total.

Referenced by constitutive::Load< T >::addLoadPhase().

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◆ isIsotropic()

template<typename T>

bool constitutive::LoadPhase< T >::isIsotropic ( const T tol = 1e-6 ) const

inline

check if the load phase is isotropic

Parameters

tol	absolute tolerance

Returns: true if isotropic, false otherwise

◆ makeCompatibleWith()

template<typename T>

void constitutive::LoadPhase< T >::makeCompatibleWith ( const LoadPhase< T > & previous )

inline

make the load phase compatible with the previous load phase. The initial stress/strain is set to the final stress/strain of the previous load phase for the same control variable.

Parameters

previous previous load phase

References control, final, LoadPhase(), and total.

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Member Data Documentation

◆ b

template<typename T>

T constitutive::LoadPhase< T >::b = -1.0

intermediate stress ratio

Referenced by finalize(), and LoadPhase().

◆ control

template<typename T>

Eigen::Matrix<T, 6, 1> constitutive::LoadPhase< T >::control

control type of the load, 0 for stress, 1 for strain, -1 for ignored

Referenced by isCompatibleWith(), LoadPhase(), LoadPhase(), and makeCompatibleWith().

◆ final

template<typename T>

Eigen::Matrix<T, 6, 1> constitutive::LoadPhase< T >::final

final loading

Referenced by isCompatibleWith(), LoadPhase(), LoadPhase(), and makeCompatibleWith().

◆ initial

template<typename T>

Eigen::Matrix<T, 6, 1> constitutive::LoadPhase< T >::initial

initial loading

Referenced by LoadPhase(), and LoadPhase().

◆ steps

template<typename T>

int constitutive::LoadPhase< T >::steps

number of steps

Referenced by LoadPhase(), and LoadPhase().

◆ total

template<typename T>

Eigen::Matrix<T, 6, 1> constitutive::LoadPhase< T >::total

control whether the load is total or incremental, 0 for incremental, 1 for total

Referenced by isCompatibleWith(), LoadPhase(), LoadPhase(), and makeCompatibleWith().

◆ true_triaxial_control_type

template<typename T>

std::string constitutive::LoadPhase< T >::true_triaxial_control_type

Initial value:

=

"none"

Control type for true triaxial loading, "none" for no control, "sig1", "sig2", or sig3" for controlling the principal stresses, "no_epsv" for controlling the intermediate principal stress without generating volumetric strain

Referenced by LoadPhase().

◆ true_triaxial_intermediate_axis

template<typename T>

int constitutive::LoadPhase< T >::true_triaxial_intermediate_axis = 2

Intermediate axis for true triaxial loading.

Referenced by LoadPhase().

◆ true_triaxial_major_axis

template<typename T>

int constitutive::LoadPhase< T >::true_triaxial_major_axis = 1

Major axis for true triaxial loading.

Referenced by LoadPhase().

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

include/constitutive/load.hpp

Public Member Functions

Public Attributes

Detailed Description

Constructor & Destructor Documentation

◆ LoadPhase() [1/2]

◆ LoadPhase() [2/2]

◆ ~LoadPhase()

Member Function Documentation

◆ finalize()

◆ initialize()

◆ isCompatibleWith()

◆ isIsotropic()

◆ makeCompatibleWith()

Member Data Documentation

◆ b

◆ control

◆ final

◆ initial

◆ steps

◆ total

◆ true_triaxial_control_type

◆ true_triaxial_intermediate_axis

◆ true_triaxial_major_axis