![]() |
GranOO
3.0
A robust and versatile workbench to build 3D dynamic simulations based on the Discrete Element Method
|
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... | |
Public Member Functions inherited from GranOO3::Core::Prop< Bond > | |
| 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) |
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< BondStrain > | |
| 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 | |
Public Types inherited from GranOO3::Core::Prop< Bond > | |
| typedef Bond | 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< Bond > | |
| 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 () |
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.
|
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.
|
inlinevirtual |
Reimplemented from GranOO3::Core::Prop< Bond >.
| void GranOO3::DEM::BondStrain::init | ( | ) |
initialize the current value of the strain tensors
|
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.
|
friend |
|
private |
the strain tensor expressed in the global frame
|
private |
the strain tensor expressed in the local bond frame