6. D modeling#
6.1. Characteristics of the mesh#
The mesh of the beam is composed of a SEG2 element.
The mesh of the section is composed of 4 quadrilateral elements.
Node group \(\mathit{ENC}\) is composed of node \(\mathit{P1}\).
Node group \(\mathit{CHA}\) is composed of node \(\mathit{P2}\).
6.2. Characteristics of modeling#
This is a POU_D_TGM model (elements with 3 Gauss points). The spin angle is \(90°\).
Modeling:
MOPOU = AFFE_MODELE (MAILLAGE = MAPOU,
AFFE =_F (TOUT =” OUI “, PHENOMENE =” MECANIQUE”,
MODELISATION =” POU_D_TGM “,),
)
Boundary conditions:
BLOCAGE = AFFE_CHAR_MECA (MODELE =MO,
DDL_IMPO =_F (GROUP_NO =” ENC “,
DX=0.0, DY=0.0, DZ=0.0, DRX =0.0, =0.0, DRY =0.0, DRZ =0.0,),
)
Mechanical loading:
CHARGE = AFFE_CHAR_MECA (MODELE =MO,
FORCE_NODALE =_F (GROUP_NO =” CHA “, FX=100, FY=100, FZ=100. ),
)
Assignment of the characteristics of the elements:
POUCA_0 = AFFE_CARA_ELEM (MODELE = MOPOU, GEOM_FIBRE =GF
POUTRE =_F (GROUP_MA =( “POUTRE”),
SECTION =” RECTANGLE “,
CARA =( “HY”, “HZ”), VALE =( 0.2,0.1),
PREC_AIRE =5., PREC_INERTIE =10.,),
ORIENTATION =_F (GROUP_MA =( “POUTRE”), CARA =” ANGL_VRIL “, VALE =0.0,),
MULTIFIBRE =_F (GROUP_MA =( “POUTRE”), GROUP_FIBRE =( “SBET”,),)
)
6.3. Tested values and results#
Coordinated mesh SG01 |
Point integration |
Sub-point |
Reference |
|
COOR_X |
2 |
1 |
1 |
0.997265255 |
COOR_X |
2 |
2 |
2 |
1.038090084 |
COOR_X |
2 |
3 |
3 |
1.002734745 |
COOR_X |
2 |
4 |
4 |
0.961909916 |
COOR_Y |
2 |
1 |
1 |
0.961909916 |
COOR_Y |
2 |
2 |
2 |
1.002734745 |
COOR_Y |
2 |
3 |
3 |
1.038090084 |
COOR_Y |
2 |
4 |
4 |
0.997265255 |
COOR_Z |
2 |
1 |
1 |
1.040824829 |
COOR_Z |
2 |
2 |
2 |
0.959175171 |
COOR_Z |
2 |
3 |
3 |
0.959175171 |
COOR_Z |
2 |
4 |
4 |
1.040824829 |
All the tolerances are the ones by default: \(1.0E-3\).