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

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

3D modeling


.. image:: images/Object_36.png
    :width: 2.6264in
    :height: 2.2984in


.. _RefImage_Object_36.png:


.. image:: images/Object_49.png
    :width: 2.6339in
    :height: 2.152in


.. _RefImage_Object_49.png:

Height: :math:`h=1.00m` Width: :math:`l=1.00m` Thickness: :math:`e=1.00m`

The following meshes are defined:

:math:`\text{S\_ARR}` :math:`\mathrm{NO3}\mathrm{NO7}\mathrm{NO8}\mathrm{NO4}`

:math:`\text{S\_AVT}` :math:`\mathrm{NO1}\mathrm{NO2}\mathrm{NO6}\mathrm{NO5}`

:math:`\text{S\_DRT}` :math:`\mathrm{NO1}\mathrm{NO5}\mathrm{NO8}\mathrm{NO4}`

:math:`\text{S\_GCH}` :math:`\mathrm{NO3}\mathrm{NO2}\mathrm{NO6}\mathrm{NO7}`

:math:`\text{S\_INF}` :math:`\mathrm{NO1}\mathrm{NO2}\mathrm{NO3}\mathrm{NO4}`

:math:`\text{S\_SUP}` :math:`\mathrm{NO5}\mathrm{NO6}\mathrm{NO7}\mathrm{NO8}`

The travel limit conditions imposed are:

On the side :math:`\text{S\_INF}`: :math:`\mathrm{DZ}=0`

On the side :math:`\text{S\_ARR}`: :math:`\mathrm{DY}=0`

On the side :math:`\text{S\_GCH}`: :math:`\mathrm{DX}=0`

The load consists of the same drying field and the same FORCE_FACE applied to :math:`\text{S\_SUP}`. A constant temperature of :math:`T=20°C` and a constant humidity of :math:`h=1` are uniformly imposed on the structure.

We charge in compression from :math:`0` to :math:`20\mathrm{MPa}` in :math:`10s`. and we maintain the load for 1 year.


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

.. csv-table::

    "Number of knots:", "21"
    "Number of meshes and types", "1 HEXA86 QUAD4"


**Table** 4.2-1


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

We test the values of :math:`{\varepsilon }_{\mathrm{xx}}^{\mathrm{fl}}` and :math:`{\varepsilon }_{\mathrm{zz}}^{\mathrm{fl}}` at node :math:`\mathrm{NO6}`, for the times 45, 245, and 365 days.

.. csv-table::

    "Variables", "Day", "Order number", "Reference"
    ":math:`{\varepsilon }_{\mathrm{xx}}^{\mathrm{fl}}` ", "45", "10", "2.82160e-4"
    ":math:`{\varepsilon }_{\mathrm{zz}}^{\mathrm{fl}}` ", "45", "10", "-1.41079e-03"
    ":math:`{\varepsilon }_{\mathrm{xx}}^{\mathrm{fl}}` ", "245", "50", "3.8520e-04"
    ":math:`{\varepsilon }_{\mathrm{zz}}^{\mathrm{fl}}` ", "245", "50", "-1.92587e-03"
    ":math:`{\varepsilon }_{\mathrm{xx}}^{\mathrm{fl}}` ", "365", "74", "3.8692e-04"
    ":math:`{\varepsilon }_{\mathrm{zz}}^{\mathrm{fl}}` ", "365", "74", "-1.934608e-03"


**Table** 4.3-1