4. B modeling#

It is identical to modeling A, except for the subsequent load: it is updated according to the geometry. We’re going to \(0.7\) in a \(0.1\) time step. So there are 7 charging steps.

4.1. Characteristics of modeling#

Modeling COQUE_3D

Element MEC3QU9H (3D solid shell) - Regular mesh

_images/Object_12.svg

4.2. Characteristics of the mesh#

Number of knots: 320

Number of meshes and type: 64 QUAD9

The mesh is half as fine as that of the reference solution.

4.3. Tested features#

  • Modeling COQUE_3D in geometric nonlinear.

  • The static algorithm for updating large rotations GROT_GDEP from STAT_NON_LINE.

4.4. Tested values#

The reference values come from the Samcef software. They are given for information purposes only.

History of vertical displacement \(\mathit{DZ}\) at the loaded node

Instant

Surface Force \(\mathit{fz}\)

Reference (Samcef)

0.4

0.4

—3.93E—01

0.7

0.7

—5.13E—01

4.5. notes#

Since the rotations are not very large, all you have to do is use the default value of COEF_RIGI_DRZ = 0.00001 (value generally used in linear analysis).