4. B modeling#
4.1. Characteristics of modeling#
Volume elements MECA_PENTA15
Discretization: |
beam \(\mathrm{AB}\): 60 meshes PENTA15 (2 stitches in the section) |
Boundary conditions: |
|
|
DDL_IMPO: (TOUT :” OUI “DZ: 0.) (GROUP_NO: G_1 DX: 0., DY: 0) |
4.2. Characteristics of the mesh#
Mesh: |
Number of nodes: 368 Number of meshes and type: 60 PENTA15 |
4.3. Tested values#
Identification |
Solution for semi-analytic |
Reference SAMCEF |
Aster |
% difference |
% difference |
ASTER - SAMCEF » |
|||||
frequency |
in HZ |
in HZ |
|||
consistent matrix |
|||||
flexure 1 |
54.18 |
56.84 |
56.84 |
56.82 |
— 0.038% |
flexure 2 |
171.94 |
180.00 |
180.00 |
179.96 |
— 0.022% |
flexure 3 |
384.40 |
401.00 |
400.93 |
— 0.018% |
|
flexure 4 |
697.24 |
723.20 |
723.41 |
|
|
flexure 5 |
1112.28 |
1145.41 |
1146.41 |
|
|
diagonal matrix |
|||||
flex 1 |
54.18 |
56.84 |
56.84 |
56.76 |
— 0.149% |
flexure 2 |
171.94 |
180.00 |
180.00 |
179.51 |
— 0.272% |
flex 3 |
384.40 |
401.00 |
401.00 |
399.25 |
— 0.437% |
flexure 4 |
697.24 |
723.20 |
— 0.583% |
||
flexure 5 |
1112.28 |
1145.41 |
— 0.740% |