D modeling
==============


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

3D modeling:


.. csv-table::

    "Number of nodes:", ":math:`27`"
    "Number of stitches:", ":math:`8` HEXA8"


The D modeling uses AFFE_CHAR_MECA, the solver GCR, and the pre-conditioner LDLT_SP. The distribution by group of elements is used for elementary calculations. A resolution is carried out with MECA_STATIQUE (by applying pressure) then a resolution with STAT_NON_LINE (by applying a subsequent pressure). The second resolution makes it possible to validate the correct functioning of the distributed matrix for a non-symmetric matrix.