B modeling
==============

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


Characteristics of modeling
-----------------------------------

Modeling COQUE_3D

Element MEC3QU9H (3D solid shell) - Regular mesh


.. image:: images/Object_12.svg
    :width: 291
    :height: 126


.. _RefImage_Object_12.svg:


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.


Tested features
-----------------------


* Modeling COQUE_3D in geometric nonlinear.


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


Tested values
---------------

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

**History of vertical displacement** :math:`\mathit{DZ}` **at the loaded node**


.. csv-table::

    "**Instant**", "**Surface Force** :math:`\mathit{fz}` ", "**Reference**
    **(Samcef)**"



.. csv-table::

    "0.4", "0.4", "—3.93E—01"
    "0.7", "0.7", "—5.13E—01"



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).