Reference problem
=====================


Geometry
---------

We consider a model structure in the form of a horizontal square slab having :math:`1.3m` thickness and :math:`10m` sides, supported in four corners by springs. The slab mesh contains three subdomains meshed in triangles and quadrangles with three interfaces: a compliant interface (coincident nodes) between sub-domains :math:`\mathit{DALQ1}` and :math:`\mathit{DALQ2}` and two non-compliant interfaces between sub-domains :math:`\mathit{DALT3}` and :math:`\mathit{DALQ1}` and :math:`\mathit{DALQ2}`.


.. image:: images/10000000000002D4000001AC7589B147924EE1FD.png
    :width: 6.3374in
    :height: 3.4508in


.. _RefImage_10000000000002D4000001AC7589B147924EE1FD.png:


Material properties
----------------------

The slab is made of reinforced concrete modelled using the global law GLRC_DAMAGE.


Boundary conditions and loads
-------------------------------------

The slab is supported by four springs whose stiffness is specified. The slab is loaded by a uniform surface pressure whose appearance in time is determined by a function.


Initial conditions
--------------------

Nil.