Modeling A
==============


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

3D modeling is used.


Characteristics of the mesh
----------------------------

The mesh contains 1128 elements of type HEXA8.


* The first calculation is done with the contact in formulation CONTINUE and without macro-elements;


* The second calculation is done with the contact in formulation CONTINUE and the cube is represented by a macroelement;


* The third calculation is done with the contact in formulation DISCRETE and the cube is represented by a macroelement;


Tested sizes and results
------------------------------

The vertical displacement and reaction are tested at point :math:`A`.

First calculation (without macro-element) — Contact in formulation CONTINUE — **Reference**

.. csv-table::

    "**Identification**", "**Reference type**", "**Reference value**", "**Tolerance**"
    "Point :math:`A` - :math:`\mathit{DZ}` ", "'ANALYTIQUE'", "0", "1.00E-012"
    "Point :math:`A` - :math:`\mathit{RZ}` ", "'NON_REGRESSION'", "-1.380156E+009", "1.00E-006"


Second calculation (with macro-element) — Contact in formulation CONTINUE

.. csv-table::

    "**Identification**", "**Reference type**", "**Reference value**", "**Tolerance**"
    "Point :math:`A` - :math:`\mathit{DZ}` ", "'ANALYTIQUE'", "0", "1.00E-012"
    "Point :math:`A` - :math:`\mathit{RZ}` ", "'AUTRE_ASTER'", "-1.380156E+009", "1.00E-006"


Third calculation (with macro-element) — Contact in formulation DISCRETE

.. csv-table::

    "**Identification**", "**Reference type**", "**Reference value**", "**Tolerance**"
    "Point :math:`A` - :math:`\mathit{DZ}` ", "'ANALYTIQUE'", "0", "1.00E-012"
    "Point :math:`A` - :math:`\mathit{RZ}` ", "'AUTRE_ASTER'", "-1.380156E+009", "1.00E-006"



notes
---------

All three calculations give exactly the same results.