example
=====

We want to build a reinforced concrete beam section, with two cylindrical steel reinforcements, with a diameter of 32.

We create a data structure named GFcomportant two groups of fibers:

• one is named SBET, and is created with a plane mesh,

• the other is named SACI, and is created with two point fibers for steels.

MASEC1 = LIRE_MAILLAGE (UNITE = 21)

GF= DEFI_GEOM_FIBRE (

SECTION =_F (GROUP_FIBRE =' SBET ', MAILLAGE_SECT = MASEC1,

TOUT_SECT =' OUI ',

COOR_AXE_POUTRE =( 0., 0.),),

FIBRE =_F (GROUP_FIBRE =' SACI ',

CARA =' DIAMETRE ',

VALE =( 0.05, -0.2, 32.E-3,

-0.05, -0.2, 32.E-3),

COOR_AXE_POUTRE =( 0., 0.),),

)