8. Modeling A#
8.1. Characteristics of modeling#
We take advantage of the symmetries of the problem to model only one eighth of the sphere.
The modeling tested is 3D_ HHO with formulation LINEAIRE.
8.2. Characteristics of the mesh#
The 246-node mesh contains 30 HEXA20 elements.
8.3. Tested sizes and results#
The stress trace and the cumulative plastic deformation are tested for the most eccentric and the least eccentric Gauss points.
MODELISATION =”3D_ HHO “and DEFORMATION =” GDEF_LOG”
Identification |
Reference type |
Reference value |
Tolerance |
Least offset Gauss point - \(\mathit{tr}(\sigma)\) - Pa |
“ANALYTIQUE” |
-864634851 |
|
Outermost Gauss point - \(\mathit{tr}(\sigma)\) - Pa |
“ANALYTIQUE” |
282024733 |
|
Least offset Gauss point - \(p\) |
“ANALYTIQUE” |
0.1484523239275907 |
|
Outermost Gauss point - \(p\) |
“ANALYTIQUE” |
5.028991914e-5 |
|
8.4. notes#
The formulation HHO gives good results.