5. Examples

5.1. Example of use in 3D

Take the case of an unmeshed crack, and a calculation of equivalent stress intensity factors in the presence of cohesive forces.

The crack was defined by:

fiss= DEFI_FISS_XFEM (MODELE =MO,

TYPE_DISCONTINUITE = “COHESIF”,

DEFI_FISS =_F (FONC_LN = funk1,

FONC_LT = funk2,

GROUP_MA_BORD = group_ma,),

);

After the mechanical calculation having given a result res, the post-treatment to obtain the intensity factors of the equivalent stresses is carried out by:

table_k= CALC_G (OPTION =” CALC_K_G “,

RESULTAT = res,

INST = inst_end,

THETA =_F (FISSURE = fiss,

NB_POINT_FOND = nb_pts,),

LISSAGE = F (LISSAGE_THETA = “LAGRANGE”,

LISSAGE_G = “LAGRANGE_NO_NO”),

)