This is an implementation of elasticity based on projective peridynamics. For more details, please refer to[He et al. 2017] "Projective Peridynamics for Modeling Versatile Elastoplastic Materials". More...

#include <LinearElasticitySolver.h>

Inheritance diagram for dyno::LinearElasticitySolver< TDataType >:

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Collaboration diagram for dyno::LinearElasticitySolver< TDataType >:

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Public Types
typedef TDataType::Real	Real

typedef TDataType::Coord	Coord

typedef TDataType::Matrix	Matrix

typedef ::dyno::TBond< TDataType >	Bond

Public Types inherited from dyno::OBase
typedef std::vector< FBase * >	FieldVector

typedef std::map< FieldID, FBase * >	FieldMap

Public Member Functions
	LinearElasticitySolver ()

	~LinearElasticitySolver () override

	DEF_VAR_IN (Real, Horizon, "")
	Horizon A positive number represents the radius of neighborhood for each point.

	DEF_VAR_IN (Real, TimeStep, "")

	DEF_ARRAY_IN (Coord, X, DeviceType::GPU, "Rest Pos")
	Reference position.

	DEF_ARRAY_IN (Coord, Y, DeviceType::GPU, "Particle position")
	Deformed position.

	DEF_ARRAY_IN (Coord, Velocity, DeviceType::GPU, "Particle velocity")
	Particle velocity.

	DEF_ARRAYLIST_IN (Bond, Bonds, DeviceType::GPU, "Peridynamic bonds")
	Neighboring bonds.

	DEF_VAR (Real, Mu, 0.001, "Lame parameters: mu")
	Lame parameters m_lambda controls the isotropic part while mu controls the deviatoric part.

	DEF_VAR (Real, Lambda, 0.01, "Lame parameters: lambda")

	DEF_VAR (uint, IterationNumber, 30, "Iteration number")

Public Member Functions inherited from dyno::ConstraintModule
	ConstraintModule ()

	~ConstraintModule () override

std::string	getModuleType () override

Public Member Functions inherited from dyno::Module
	Module (std::string name="default")

	~Module (void) override

bool	initialize ()

void	update ()

void	setName (std::string name)

std::string	getName () override

virtual void	setParentNode (Node *node)
	Set the parent node.

Node *	getParentNode ()

SceneGraph *	getSceneGraph ()

bool	isInitialized ()

bool	attachField (FBase *field, std::string name, std::string desc, bool autoDestroy=true) override
	Attach a field to Base.

bool	isInputComplete ()
	Check the completeness of input fields.

bool	isOutputCompete ()

	DEF_VAR (bool, ForceUpdate, false, "")

void	setUpdateAlways (bool b)
	Set the update strategy for the module.

Public Member Functions inherited from dyno::OBase
	OBase ()

	~OBase () override

virtual std::string	caption ()
	Return the caption.

virtual bool	captionVisible ()
	Whether to hide the caption in the GUI.

virtual std::string	description ()
	Return a description for the node or module, override this function to support user-defined description.

bool	addField (FBase *data)
	Add a field to Base FieldID will be set to the name of Field by default.

bool	addField (FieldID name, FBase *data)
	Add a field to Base.

bool	addFieldAlias (FieldID name, FBase *data)

bool	addFieldAlias (FieldID name, FBase *data, FieldMap &fieldAlias)

bool	findField (FBase *data)
	Find a field by its pointer.

bool	findFieldAlias (const FieldID name)
	Find a field by its name.

bool	findFieldAlias (const FieldID name, FieldMap &fieldAlias)
	Find a field in fieldAlias by its name This function is typically called by other functions.

bool	removeField (FBase *data)
	Remove a field by its pointer.

bool	removeFieldAlias (const FieldID name)
	Remove a field by its name.

bool	removeFieldAlias (const FieldID name, FieldMap &fieldAlias)

FBase *	getField (const FieldID name)
	Return a field by its name.

std::vector< FBase * > &	getAllFields ()

template<typename T>
T *	getField (FieldID name)

bool	isAllFieldsReady ()
	Check the completeness of all required fields.

std::vector< FieldID >	getFieldAlias (FBase *data)

int	getFieldAliasCount (FBase *data)

void	setBlockCoord (float x, float y)

float	bx ()

float	by ()

bool	findInputField (FBase *field)

bool	addInputField (FBase *field)

bool	removeInputField (FBase *field)

std::vector< FBase * > &	getInputFields ()

bool	findOutputField (FBase *field)

bool	addOutputField (FBase *field)

bool	addToOutput (FBase *field)

bool	removeOutputField (FBase *field)

bool	removeFromOutput (FBase *field)

std::vector< FBase * > &	getOutputFields ()

bool	findParameter (FBase *field)

bool	addParameter (FBase *field)

bool	removeParameter (FBase *field)

std::vector< FBase * > &	getParameters ()

Public Member Functions inherited from dyno::Object
	Object ()

virtual	~Object ()

ObjectId	objectId ()

Protected Member Functions
void	constrain () override

virtual void	solveElasticity ()

void	preprocess () override

virtual void	enforceElasticity ()
	Correct the particle position with one iteration Be sure computeInverseK() is called as long as the rest shape is changed.

virtual void	computeMaterialStiffness ()

void	updateVelocity ()

void	computeInverseK ()

Protected Member Functions inherited from dyno::ConstraintModule
void	updateImpl () override

Protected Member Functions inherited from dyno::Module
virtual bool	initializeImpl ()

virtual void	postprocess ()

virtual bool	validateInputs ()

virtual bool	validateOutputs ()

virtual bool	requireUpdate ()

virtual void	updateStarted ()
	Two functions called at the beginning and end of update() used for debug.

virtual void	updateEnded ()

Protected Attributes
DArray< Real >	mBulkStiffness

DArray< Real >	mWeights

DArray< Coord >	mDisplacement

DArray< Coord >	mPosBuf

DArray< Matrix >	mF

DArray< Matrix >	mInvK

Protected Attributes inherited from dyno::OBase
std::vector< FBase * >	fields_input

std::vector< FBase * >	fields_output

std::vector< FBase * >	fields_param

Additional Inherited Members
Static Public Member Functions inherited from dyno::Object
static bool	registerClass (ClassInfo *ci)

static Object *	createObject (std::string name)

static std::map< std::string, ClassInfo * > *	getClassMap ()

static ObjectId	baseId ()
	Base Id.

Detailed Description

template<typename TDataType>
class dyno::LinearElasticitySolver< TDataType >

This is an implementation of elasticity based on projective peridynamics. For more details, please refer to[He et al. 2017] "Projective Peridynamics for Modeling Versatile Elastoplastic Materials".

Definition at line 28 of file LinearElasticitySolver.h.

Member Typedef Documentation

◆ Bond

template<typename TDataType>

typedef ::dyno::TBond<TDataType> dyno::LinearElasticitySolver< TDataType >::Bond

Definition at line 36 of file LinearElasticitySolver.h.

◆ Coord

template<typename TDataType>

typedef TDataType::Coord dyno::LinearElasticitySolver< TDataType >::Coord

Definition at line 34 of file LinearElasticitySolver.h.

◆ Matrix

template<typename TDataType>

typedef TDataType::Matrix dyno::LinearElasticitySolver< TDataType >::Matrix

Definition at line 35 of file LinearElasticitySolver.h.

◆ Real

template<typename TDataType>

typedef TDataType::Real dyno::LinearElasticitySolver< TDataType >::Real

Definition at line 33 of file LinearElasticitySolver.h.

Constructor & Destructor Documentation

◆ LinearElasticitySolver()

template<typename TDataType>

dyno::LinearElasticitySolver< TDataType >::LinearElasticitySolver ( )

◆ ~LinearElasticitySolver()

template<typename TDataType>

dyno::LinearElasticitySolver< TDataType >::~LinearElasticitySolver ( )

override

Member Function Documentation

◆ computeInverseK()

template<typename TDataType>

void dyno::LinearElasticitySolver< TDataType >::computeInverseK ( )

protected

◆ computeMaterialStiffness()

template<typename TDataType>

virtual void dyno::LinearElasticitySolver< TDataType >::computeMaterialStiffness ( )

protectedvirtual

Reimplemented in dyno::GranularModule< TDataType >.

◆ constrain()

template<typename TDataType>

void dyno::LinearElasticitySolver< TDataType >::constrain ( )

overrideprotectedvirtual

Implements dyno::ConstraintModule.

◆ DEF_ARRAY_IN() [1/3]

template<typename TDataType>

dyno::LinearElasticitySolver< TDataType >::DEF_ARRAY_IN	(	Coord	,
		Velocity	,
		DeviceType::GPU	,
		"Particle velocity"	)

Particle velocity.

◆ DEF_ARRAY_IN() [2/3]

template<typename TDataType>

dyno::LinearElasticitySolver< TDataType >::DEF_ARRAY_IN	(	Coord	,
		X	,
		DeviceType::GPU	,
		"Rest Pos"	)

Reference position.

◆ DEF_ARRAY_IN() [3/3]

template<typename TDataType>

dyno::LinearElasticitySolver< TDataType >::DEF_ARRAY_IN	(	Coord	,
		Y	,
		DeviceType::GPU	,
		"Particle position"	)

Deformed position.

◆ DEF_ARRAYLIST_IN()

template<typename TDataType>

dyno::LinearElasticitySolver< TDataType >::DEF_ARRAYLIST_IN	(	Bond	,
		Bonds	,
		DeviceType::GPU	,
		"Peridynamic bonds"	)

Neighboring bonds.

◆ DEF_VAR() [1/3]

template<typename TDataType>

dyno::LinearElasticitySolver< TDataType >::DEF_VAR	(	Real	,
		Lambda	,
		0.	01,
		"Lame parameters: lambda"	)

◆ DEF_VAR() [2/3]

template<typename TDataType>

dyno::LinearElasticitySolver< TDataType >::DEF_VAR	(	Real	,
		Mu	,
		0.	001,
		"Lame parameters: mu"	)

Lame parameters m_lambda controls the isotropic part while mu controls the deviatoric part.

◆ DEF_VAR() [3/3]

template<typename TDataType>

dyno::LinearElasticitySolver< TDataType >::DEF_VAR	(	uint	,
		IterationNumber	,
		30	,
		"Iteration number"	)

◆ DEF_VAR_IN() [1/2]

template<typename TDataType>

dyno::LinearElasticitySolver< TDataType >::DEF_VAR_IN	(	Real	,
		Horizon	,
		""	)

Horizon A positive number represents the radius of neighborhood for each point.

◆ DEF_VAR_IN() [2/2]

template<typename TDataType>

dyno::LinearElasticitySolver< TDataType >::DEF_VAR_IN	(	Real	,
		TimeStep	,
		""	)

◆ enforceElasticity()

template<typename TDataType>

virtual void dyno::LinearElasticitySolver< TDataType >::enforceElasticity ( )

protectedvirtual

Correct the particle position with one iteration Be sure computeInverseK() is called as long as the rest shape is changed.

◆ preprocess()

template<typename TDataType>

void dyno::LinearElasticitySolver< TDataType >::preprocess ( )

overrideprotectedvirtual

Reimplemented from dyno::Module.

◆ solveElasticity()

template<typename TDataType>

virtual void dyno::LinearElasticitySolver< TDataType >::solveElasticity ( )

protectedvirtual

Reimplemented in dyno::CoSemiImplicitHyperelasticitySolver< TDataType >, dyno::ElastoplasticityModule< TDataType >, and dyno::SemiImplicitHyperelasticitySolver< TDataType >.

◆ updateVelocity()

template<typename TDataType>

void dyno::LinearElasticitySolver< TDataType >::updateVelocity ( )

protected

Member Data Documentation

◆ mBulkStiffness

template<typename TDataType>

DArray<Real> dyno::LinearElasticitySolver< TDataType >::mBulkStiffness

protected

Definition at line 100 of file LinearElasticitySolver.h.

◆ mDisplacement

template<typename TDataType>

DArray<Coord> dyno::LinearElasticitySolver< TDataType >::mDisplacement

protected

Definition at line 103 of file LinearElasticitySolver.h.

◆ mF

template<typename TDataType>

DArray<Matrix> dyno::LinearElasticitySolver< TDataType >::mF

protected

Definition at line 106 of file LinearElasticitySolver.h.

◆ mInvK

template<typename TDataType>

DArray<Matrix> dyno::LinearElasticitySolver< TDataType >::mInvK

protected

Definition at line 107 of file LinearElasticitySolver.h.

◆ mPosBuf

template<typename TDataType>

DArray<Coord> dyno::LinearElasticitySolver< TDataType >::mPosBuf

protected

Definition at line 104 of file LinearElasticitySolver.h.

◆ mWeights

template<typename TDataType>

DArray<Real> dyno::LinearElasticitySolver< TDataType >::mWeights

protected

Definition at line 101 of file LinearElasticitySolver.h.

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

D:/Peridyno/peridyno/src/Dynamics/Cuda/Peridynamics/Module/LinearElasticitySolver.h

Public Types

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ Bond

◆ Coord

◆ Matrix

◆ Real

Constructor & Destructor Documentation

◆ LinearElasticitySolver()

◆ ~LinearElasticitySolver()

Member Function Documentation

◆ computeInverseK()

◆ computeMaterialStiffness()

◆ constrain()

◆ DEF_ARRAY_IN() [1/3]

◆ DEF_ARRAY_IN() [2/3]

◆ DEF_ARRAY_IN() [3/3]

◆ DEF_ARRAYLIST_IN()

◆ DEF_VAR() [1/3]

◆ DEF_VAR() [2/3]

◆ DEF_VAR() [3/3]

◆ DEF_VAR_IN() [1/2]

◆ DEF_VAR_IN() [2/2]

◆ enforceElasticity()

◆ preprocess()

◆ solveElasticity()

◆ updateVelocity()

Member Data Documentation

◆ mBulkStiffness

◆ mDisplacement

◆ mF

◆ mInvK

◆ mPosBuf

◆ mWeights