3. Modeling A#

3.1. Characteristics of modeling#

Elasto-plastic calculation on a plane stress model (C_ PLAN). A mesh adaptation is carried out at each time step, followed by a projection and balancing phase. For adaptation, software HOMARD is provided with a very fine description of the geometry of the hole in order to properly follow its outline. Otherwise, concentrations of non-physical stresses appear.

3.2. Characteristics of the mesh#

An initial mesh that includes 91 TRIA6 and 210 nodes is used.

_images/100000000000017F000002082A934D62AD506976.png

3.3. Tested sizes and results#

We test the value of the stress components at the end of loading:

Component

Type of reference

Value

Tolerance

SIGM_NOEU — \(\mathit{SIYY}\) in \(B\)

AUTRE_ASTER

250.17 MPa

0.40%

SIGM_NOEU — \(\mathit{SIXX}\) in \(A\)

AUTRE_ASTER

-218.93 MPa

6.00%