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GranOO
3.0
A robust and versatile workbench to build 3D dynamic simulations based on the Discrete Element Method
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a bond property able to associate and compute a full strain tensor to DEM::Bond
More...
#include <BondStrain.hpp>
Public Member Functions | |
BondStrain () | |
constructor More... | |
virtual | ~BondStrain () |
destructor More... | |
virtual std::string | info () const |
void | init () |
initialize the current value of the strain tensors More... | |
void | update () |
compute the current values of the strain tensors More... | |
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Prop () | |
virtual | ~Prop () |
Bond & | item () |
const Bond & | item () const |
void | set_item (Bond &) |
virtual void | set_color (const Core::Color &) |
Core::Color & | get_color () |
float & | get_line_width () |
virtual void | add (SetOf< Prop< Bond > > *) |
virtual void | erase (SetOf< Prop< Bond > > *) |
virtual std::ostream & | write_ascii (std::ostream &out) const |
virtual std::istream & | read_ascii (std::istream &in) |
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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 () |
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Null () | |
virtual | ~Null () |
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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 |
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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 |
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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 |
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Register () | |
virtual | ~Register () |
void | erase_from_all_setof () |
bool | belong_to_setof (const std::string &setOfId) const |
bool | belong_to_setof (const SetOf< BondStrain > &set) const |
std::list< SetOf< BondStrain > * > & | 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 instance in the *.gdd format More... | |
Private Attributes | |
Geom::SymTensor | _local_strain_tensor |
the strain tensor expressed in the local bond frame More... | |
Geom::SymTensor | _global_strain_tensor |
the strain tensor expressed in the global frame More... | |
Friends | |
class | boost::serialization::access |
Additional Inherited Members | |
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typedef Bond | Owner |
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static Base & | get_by_numID (size_t) |
static void | clear_all_numID () |
static unsigned int | get_sub_class_number () |
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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 () |
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static Null | null = Null() |
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virtual Base & | base_item () |
virtual const Base & | base_item () const |
void | serialize (Archive &ar, const unsigned int) |
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Base () | |
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static unsigned int | affect_class_rank_ID () |
a bond property able to associate and compute a full strain tensor to DEM::Bond
GranOO3::DEM::BondStrain::BondStrain | ( | ) |
constructor
Construct a new BondStrain. Do not call this constructor. To build a new BondStrain instance, you must create a new property by invoking the Bond::new_prop<BondStrain>() method of the Bond class.
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virtual |
destructor
Destruct a BondStrain instance. Be aware, as BondStrain is a property, you must not invoke destructor by yourself, it could lead to unexpected behavior. Note that the BondStrain instances are automatically destructed when their associated Bonds are destructed.
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inlinevirtual |
Reimplemented from GranOO3::Core::Prop< Bond >.
void GranOO3::DEM::BondStrain::init | ( | ) |
initialize the current value of the strain tensors
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private |
void GranOO3::DEM::BondStrain::update | ( | ) |
compute the current values of the strain tensors
Here, the complete method for computing strains is described in this paper [1]. In brief, a least square method is used for computing the strain related to each element (see the Strain class). The mean value of the strains of the 2 bonded element are taken for the current bond strain tensor. Then, this value is corrected with direct information that can be computed directly from the bond.
[1] André, D., Girardot, J., & Hubert, C. (2019). A novel DEM approach for modeling brittle elastic media based on distinct lattice spring model. Computer Methods in Applied Mechanics and Engineering, 350, 100-122.
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friend |
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private |
the strain tensor expressed in the global frame
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private |
the strain tensor expressed in the local bond frame