Manual pages | Cast3M

$$$$ CONN     NOTICE  CHAT      11/09/12    21:15:33     7124           
                                             DATE     11/09/12
 
    Operateur CONNECTIVITE                   Voir aussi : NLOC
 
 
    CHAM1=CONN MODL1 |FLOT1 |'NORMAL'                    (MOT1);
                     |CHAM2 |'POINT'    POIN1             MOT1 ;
                            |'DROITE'   POIN1 POIN2       MOT1 ;
                            |'PLAN'     POIN1 POIN2 POIN3 MOT1 ;
                            |'TRANS'    POIN1             MOT1 ;
 

    Description :
    ___________ _
 
    The CONNECTIVITE operator defines the field by element CHAM1
 (CONNECTIVITE NON LOCAL subtype) for the elements of MODL1 which
 have not been modified, or for the elements modified with
 respect to a point, a straight line, or a plane, or else for the
 elements modified by translation. These elements are situated at
 a distance smaller than FLOT1 from each element of MODL1. This 
 distance may varry along the mesh holded by the model, and is then
 specified by the component 'NLAR' of the MCHAML CHAM1 (CARACTERISTIQUE
 subtype).
 
    Contents :
    __________
 
    'POINT'   : key word indicating that the connectivities are
                set up with respect to a mesh symmetrical in
                relation to a point, followed by :
 
     POIN1    : point of symmetry (POINT type)
 
    'DROITE'  : key word indicating that the connectivities are
                set up with respect to a mesh symmetrical with
                respect to a straight line, followed by :
 
     POIN1 |  : two points defining a straight line (POINT type)
     POIN2 |
 
    'PLAN'    : key word indicating that the connectivities are
                set up with respect to a mesh symmetrical with
                respect to a plane, followed by :
 
     POIN1 |  : three points defining a plane (POINT type)
     POIN2 |
     POIN3 |
 
    'TRANS'   : key word indicating that the connectivities are
                set up with respect to a mesh translated with
                respect to a vector, followed by :
 
     POIN1    : vector of translation (POINT type)
 
     MOT1     : word referring to the name of constituent (optional in
                the 'NORMAL' case )
 
 
    Note :
    ________
 
    This operator works as a pre-processor for "non-local" calculations
 (see the NLOC operator).
 
    Caution :
    _________
 
    MODL1 must be composed of a single constituent and must be
 associated with a mesh made of a single geometrical area.
 
    MOT1 is used to distinguish the connectivities which are associated
 with a model. If the connectivities differ, the name of their
 constituent will also have to be different.
 
    Example :
    _________
 
 
    Given the rectangular mesh
    MESH1 generated by means of          P4  X------------X  P3
    four points P1,P2,P3,P4, or              |            |
    given MMOD, a model associated           |    MESH1   |
    with MESH1.                              |            |
                                         P1  X------------X  P2
 
    A non-local calculation is requested (see NLOC operator) on MESH1;
    MESH1 contains two axes of symmetry P1-P4 and P1-P2. Considering
    L the typical length, the connectivity to be issued will be as
    follows :
 
 
    CONN1='CONN' MMOD L 'NORMAL' 'INTERIEUR';
    CONN2='CONN' MMOD L 'DROITE' P1 P2 'BORD P1-P2';
    CONN3='CONN' MMOD L 'DROITE' P1 P4 'BORD P1-P4';
    CONN4='CONN' MMOD L 'POINT'  P1    'COIN MANQUANT P1';
    CONN_TOT=CONN1 'ET' CONN2 'ET' CONN3 'ET' CONN4;