5. C modeling#

5.1. Characteristics of modeling#

We use a 3D_SI modeling with sub-integrated HEXA8 elements stabilized by the assumed strain method. The mesh used is an extrusion of the modeling A mesh over a height of \(\mathrm{0,1}m\) with a single element in the thickness. All degrees of freedom are blocked according to \(Z\) in order to approximate the hypothesis of plane deformations used in models A and B.

5.2. Characteristics of the mesh#

Number of knots: 1054

Number of meshes: 1731

QUAD4: 1052

HEXA8: 480

5.3. Tested sizes and results#

We test the \(\mathit{SIYY}\) coordinate of the stress tensor at various points in the \(\mathit{IJ}\) path compared to the D (AUTRE_ASTER) modeling:

Curvilinear abscissa

Reference

Precision

Test

0.0

234.122

\(1\times {10}^{-2}\)

AUTRE_ASTER

1.53224

256.988

\(1\times {10}^{-2}\)

AUTRE_ASTER

3.26890

300.287

\(1\times {10}^{-2}\)

AUTRE_ASTER

3.80797

267.555

\(1\times {10}^{-2}\)

AUTRE_ASTER

4.40378

183.498

\(1\times {10}^{-2}\)

AUTRE_ASTER

In addition, we test (in non-regression):

  • ERME_ELEM and ERME_ELNO (residual error)

  • The SIXX and SIYY constraint at node B