a property for computing strain associated to DEM::Element More...

#include <Strain.hpp>

Inheritance diagram for GranOO3::DEM::Strain:

[legend]

Public Member Functions
	Strain ()
	constructor More...

virtual	~Strain ()
	destructor More...

virtual std::string	info () const
	Display some useful info in the terminal More...

void	init ()
	just clear (set to zero) the _displacement_gradient and the _strain_tensor attributes More...

void	update_lsq (bool ignore_cracked_bond)
	update the strain tensors using the least quare method (lsq) More...

Public Member Functions inherited from GranOO3::Core::Prop< Element >
	Prop ()

virtual	~Prop ()

Element &	item ()

const Element &	item () const

void	set_item (Element &)

virtual void	set_color (const Core::Color &)

Core::Color &	get_color ()

float &	get_line_width ()

virtual void	add (SetOf< Prop< Element > > *)

virtual void	erase (SetOf< Prop< Element > > *)

virtual std::ostream &	write_ascii (std::ostream &out) const

virtual std::istream &	read_ascii (std::istream &in)

Public Member Functions inherited from GranOO3::Core::Base
virtual	~Base ()

size_t	numID () const

size_t	uID () const

void	set_numID (size_t val)

void	clear_numID ()

Physic::Material &	get_mat () const

void	set_mat (Physic::Material *)

Base &	item ()

const Base &	item () const

bool	is_same (const Base &) const

template<class T >
T &	cast_to ()

template<class T >
const T &	cast_to () const

template<class T >
bool	is () const

virtual bool	is (size_t) const

virtual const std::string &	get_ID () const

virtual Base &	clone ()

template<class T >
T &	clone_to ()

virtual std::ostream &	export_to_povray (std::ostream &out) const

Signal< Base & > &	deleted_signal ()

Public Member Functions inherited from GranOO3::Core::Null
	Null ()

virtual	~Null ()

Public Member Functions inherited from GranOO3::Core::Drawable
	Drawable ()

virtual	~Drawable ()

virtual void	draw ()

virtual void	draw_edge ()

virtual void	init_default_color ()

virtual std::ostream &	get_info (std::ostream &os) const

virtual const Color &	default_color () const

Color &	get_color ()

const Color &	get_color () const

virtual void	set_alpha (float alpha)

void	apply_color () const

void	apply_edge_color () const

void	apply_default_color ()

void	apply_selected_color ()

void	set_line_width (float)

float	get_line_width () const

float &	get_line_width ()

void	apply_line_width () const

bool	is_visible () const

void	set_visible (bool)

void	paint ()

void	paint_edge ()

unsigned int	get_item_glkey () const

Public Member Functions inherited from GranOO3::Core::Register< Base >
	Register ()

virtual	~Register ()

void	erase_from_all_setof ()

bool	belong_to_setof (const std::string &setOfId) const

bool	belong_to_setof (const SetOf< Base > &set) const

std::list< SetOf< Base > * > &	get_setof_list ()

unsigned long long int	get_numeric_ID () const

Public Member Functions inherited from GranOO3::Core::Register< type >
	Register ()

virtual	~Register ()

void	erase_from_all_setof ()

bool	belong_to_setof (const std::string &setOfId) const

bool	belong_to_setof (const SetOf< type > &set) const

std::list< SetOf< type > * > &	get_setof_list ()

unsigned long long int	get_numeric_ID () const

Public Member Functions inherited from GranOO3::Core::Register< Strain >
	Register ()

virtual	~Register ()

void	erase_from_all_setof ()

bool	belong_to_setof (const std::string &setOfId) const

bool	belong_to_setof (const SetOf< Strain > &set) const

std::list< SetOf< Strain > * > &	get_setof_list ()

unsigned long long int	get_numeric_ID () const

Private Member Functions
template<class Archive >
void	serialize (Archive &ar, const unsigned int)
	complete serializing of the item in the *.gdd format More...

Private Attributes
Geom::Tensor	_displacement_gradient
	the displacement gradient tensor (be aware, this tensor is not symmetrical) More...

Geom::SymTensor	_strain_tensor
	the strain tensor which is the main result of this property More...

Friends
class	boost::serialization::access

Additional Inherited Members
Public Types inherited from GranOO3::Core::Prop< Element >
typedef Element	Owner

Static Public Member Functions inherited from GranOO3::Core::Base
static Base &	get_by_numID (size_t)

static void	clear_all_numID ()

static unsigned int	get_sub_class_number ()

Static Public Member Functions inherited from GranOO3::Core::Drawable
static Drawable &	get_drawable_item_by_glkey (int)

static void	set_draw_precision (unsigned int p)

static void	increase_draw_precision ()

static void	decrease_draw_precision ()

static unsigned int	get_draw_precision ()

Static Public Attributes inherited from GranOO3::Core::Null
static Null	null = Null()

Protected Member Functions inherited from GranOO3::Core::Prop< Element >
virtual Base &	base_item ()

virtual const Base &	base_item () const

void	serialize (Archive &ar, const unsigned int)

Protected Member Functions inherited from GranOO3::Core::Base
	Base ()

Static Protected Member Functions inherited from GranOO3::Core::Base
static unsigned int	affect_class_rank_ID ()

Detailed Description

a property for computing strain associated to DEM::Element

The aim of this DEM::Element property is to compute strains associated to DEM::Element. Here, the method used for computing strains is based on the least square method. More details can be found in this publication [1].

[1] Damien André, Jérémie Girardot and Cédric Hubert (2019). A novel DEM approach for modeling brittle elastic media based on distinct lattice spring model. Computer Methods in Applied Mechanics and Engineering.

Constructor & Destructor Documentation

◆ Strain()

GranOO3::DEM::Strain::Strain ( )

constructor

Construct a new Strain element. Do not call this constructor. To build a new Strain instance, you must create a new property by invoking the Element::new_prop<Strain>() method of the Element class.

◆ ~Strain()

GranOO3::DEM::Strain::~Strain ( )

virtual

destructor

Destruct a Strain instance. Be aware, as Strain is a property, you must not invoke destructor by yourself, it could lead to unexpected behavior. Note that the Strain instances are automatically destructed when their associated elements are destructed.

Member Function Documentation

◆ info()

std::string GranOO3::DEM::Strain::info ( ) const

inlinevirtual

Display some useful info in the terminal

Reimplemented from GranOO3::Core::Prop< Element >.

◆ init()

void GranOO3::DEM::Strain::init ( )

just clear (set to zero) the _displacement_gradient and the _strain_tensor attributes

◆ serialize()

template<class Archive >

void GranOO3::DEM::Strain::serialize	(	Archive &	ar,
		const unsigned int	version
	)

private

complete serializing of the item in the *.gdd format

See also: the Domain classes to get additional info about I/O

◆ update_lsq()

void GranOO3::DEM::Strain::update_lsq ( bool ignore_cracked_bond )

update the strain tensors using the least quare method (lsq)

This method both update the values of the _displacement_gradient and the _strain_tensor attributes using the moving least square method. Be aware, If the element has not enough bonded neighbors (less than 4), the _displacement_gradient and the _strain_tensor are cleared.

Friends And Related Function Documentation

◆ boost::serialization::access

friend class boost::serialization::access

friend

Member Data Documentation

◆ _displacement_gradient

Geom::Tensor GranOO3::DEM::Strain::_displacement_gradient

private

the displacement gradient tensor (be aware, this tensor is not symmetrical)

◆ _strain_tensor

Geom::SymTensor GranOO3::DEM::Strain::_strain_tensor

private

the strain tensor which is the main result of this property

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

/home/granoo/granoo/Lib/GranOO3/DEM/Prop/Strain.hpp
/home/granoo/granoo/Lib/GranOO3/DEM/Prop/Strain.cpp
/home/granoo/granoo/Lib/GranOO3/DEM/Prop/Strain.dox

Public Member Functions

Private Member Functions

Private Attributes

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ Strain()

◆ ~Strain()

Member Function Documentation

◆ info()

◆ init()

◆ serialize()

◆ update_lsq()

Friends And Related Function Documentation

◆ boost::serialization::access

Member Data Documentation

◆ _displacement_gradient

◆ _strain_tensor