Mesh boundary nodes. More...

#include <Boundary.h>

Collaboration diagram for Boundary:

[legend]

Classes
struct	planeBoundary
	Represents the nodes and the type of restrictions. More...

Public Types
enum	BoundaryType { FREE , FIXED , SLIDING , EARTHQUAKE }
	Determines the type of restrictions to be imposed to the mesh. More...

enum	BoundaryPlane { X0 , Y0 , Z0 , Xn , Yn , Zn }
	Planes at the mesh boundary. More...

Public Member Functions
	Boundary ()
	Default constructor.

virtual	~Boundary ()
	Default destructor.

const planeBoundary *	getPlaneX0 () const
	Return the nodes lower than the plane X0, including ghosts.

const planeBoundary *	getPlaneY0 () const
	Return the nodes lower than the plane Y0, including ghosts.

const planeBoundary *	getPlaneZ0 () const
	Return the nodes lower than the plane Z0, including ghosts.

const planeBoundary *	getPlaneXn () const
	Return the nodes lower than the plane Xn, including ghosts.

const planeBoundary *	getPlaneYn () const
	Return the nodes lower than the plane Yn, including ghosts.

const planeBoundary *	getPlaneZn () const
	Return the nodes lower than the plane Zn, including ghosts.

void	setNodesPlaneX0 (const vector< int > &nodes_id)
	Configure the nodes lower than the plane X0, including ghosts.

void	setNodesPlaneY0 (const vector< int > &nodes_id)
	Configure the nodes lower than the plane Y0, including ghosts.

void	setNodesPlaneZ0 (const vector< int > &nodes_id)
	Configure the nodes lower than the plane Z0, including ghosts.

void	setNodesPlaneXn (const vector< int > &nodes_id)
	Configure the nodes lower than the plane Xn, including ghosts.

void	setNodesPlaneYn (const vector< int > &nodes_id)
	Configure the nodes lower than the plane Yn, including ghosts.

void	setNodesPlaneZn (const vector< int > &nodes_id)
	Configure the nodes lower than the plane Zn, including ghosts.

void	setRestrictions (Boundary::BoundaryType restriction)
	Configure the restrictions of the boundary nodes.

void	setRestrictionsFluid (Boundary::BoundaryType restriction)
	Configure the restrictions of the boundary nodes.

void	setRestrictions (Boundary::BoundaryPlane plane, Boundary::BoundaryType restriction)
	Configure the restrictions of the boundary nodes by plane.

void	setRestrictionsFluid (Boundary::BoundaryPlane plane, Boundary::BoundaryType restriction)
	Configure the restrictions of the boundary nodes by plane.

Private Attributes
Boundary::planeBoundary	planeX0
	boundary nodes at plane X0

Boundary::planeBoundary	planeY0
	boundary nodes at plane Y0

Boundary::planeBoundary	planeZ0
	boundary nodes at plane Z0

Boundary::planeBoundary	planeXn
	boundary nodes at plane Xn

Boundary::planeBoundary	planeYn
	boundary nodes at plane Yn

Boundary::planeBoundary	planeZn
	boundary nodes at plane Zn

Detailed Description

Mesh boundary nodes.

This class represents the mesh boundaries for setting up the boundary conditions of the numerical problem in terms of displacement, velocity and acceleration. In a mechanical numerical model the Lagrangian boundary conditions, like external loads, are set up into the particles representing the physical domain boundary, and during the nodal integration the mesh boundary conditions should be applied on the mesh boundaries. In particular, this class is created to apply these nodal BCs.

For a regular mesh, two planes are defined in each direction: X0–Xn, Y0–Yn, Z0–Zn, where the subscript 0 represents the minimum coordinate in that direction and n the maximum.

There are several types of BCs:

In fixed boundary condition, the node is fixed in all directions.
In sliding boundary condition, the node is only permitted to move in the direction perpendicular to the corresponding plane.
In free boundary condition, the node can move in all directions.
In earthquake boundary condition, nodal accelerations and velocities can be applied over time to introduce a seismic record in the model.

Definition of the planes for setting boundary conditions

*                      Boundaries of the Mesh
*                             
*                          +----------+
*                          |\          \ 
*                          | \ Plane Zn \ 
*    z                     |  \          \ 
*    |       Plane Y0 ------>  +----------+  <------ Plane Yn
*    |                     |   |          |
*    +---- y               +   |          |       
*     \                     \  | Plane Xn |
*      \                     \ |          |
*       x                     \|          |
*                              +----------+ 
*
* Plane X0 : Plane whose normal points in the negative X direction  
* Plane Xn : Plane whose normal points in the positive X direction
*

Note: If any boundary condition is defined in the input file, sliding boundary condition is chosen, by default, for all planes.

Member Enumeration Documentation

◆ BoundaryPlane

enum Boundary::BoundaryPlane

Planes at the mesh boundary.

Enumerator
X0
Y0
Z0
Xn
Yn
Zn

◆ BoundaryType

enum Boundary::BoundaryType

Determines the type of restrictions to be imposed to the mesh.

Enumerator
FREE
FIXED
SLIDING
EARTHQUAKE

Constructor & Destructor Documentation

◆ Boundary()

Boundary::Boundary ( )

inline

Default constructor.

◆ ~Boundary()

Boundary::~Boundary ( )

inlinevirtual

Default destructor.

Member Function Documentation

◆ getPlaneX0()

const planeBoundary * Boundary::getPlaneX0 ( ) const

inline

Return the nodes lower than the plane X0, including ghosts.

Returns: A pointer to planeBoundary in X0

◆ getPlaneXn()

const planeBoundary * Boundary::getPlaneXn ( ) const

inline

Return the nodes lower than the plane Xn, including ghosts.

Returns: A pointer to planeBoundary Xn

◆ getPlaneY0()

const planeBoundary * Boundary::getPlaneY0 ( ) const

inline

Return the nodes lower than the plane Y0, including ghosts.

Returns: A pointer to planeBoundary in Y0

◆ getPlaneYn()

const planeBoundary * Boundary::getPlaneYn ( ) const

inline

Return the nodes lower than the plane Yn, including ghosts.

Returns: A pointer to planeBoundary Yn

◆ getPlaneZ0()

const planeBoundary * Boundary::getPlaneZ0 ( ) const

inline

Return the nodes lower than the plane Z0, including ghosts.

Returns: A pointer to planeBoundary in Z0

◆ getPlaneZn()

const planeBoundary * Boundary::getPlaneZn ( ) const

inline

Return the nodes lower than the plane Zn, including ghosts.

Returns: A pointer to planeBoundary Zn

◆ setNodesPlaneX0()

void Boundary::setNodesPlaneX0 ( const vector< int > & nodes_id )

inline

Configure the nodes lower than the plane X0, including ghosts.

Parameters