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$$$$ @CLDHC   NOTICE  CHAT      11/09/12    21:15:27     7124           
                                             DATE     11/09/12

    Procedure @CLDHC           Voir aussi: @CLIM, @KEFF, KEFFT
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        RIG1 F1 = @CLDHC MAIL0 TAB1;
    
    Auteurs:   L. GELEBART (CEA Saclay DEN/DMN/SRMA)
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    Date :     09/2006
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    Exemple associe :     test_AMITEX.dgibi
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    Contact :   lionel(dot)gelebart(at)cea(dot)fr
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    Purpose :
    ---------
    This procedure allows to build the stiffness matrix and the
    nodal forces associated to a set of uniform kinematic 
    boundary conditions with a prescribed mean stress.
    
    Comments :
    --------------
    MAIL0 : Mesh defined in a square parallelepiped
            volume (MAILLAGE)
    TAB1  : Applied mean stress (TABLE) according to :
               TAB1.1 = SXX, 
               TAB1.2 = SYY, 
               TAB1.3 = SZZ, 
               TAB1.4 = SXY, 
               TAB1.5 = SXZ, 
               TAB1.6 = SYZ,
    RIG1  : Stiffness matrix (RIGIDITE)
    F1    : Nodal forces (CHPOINT)  
               
    Remarques :
    -----------
       To speed up calculations when using the procedure @KEFF,
       use preferentially @CLDH instead of @CLDHC
       This preocedure works with porosities connected
       to the parallelepiped boundary of the volume element
       only if they are periodic