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


Geometry
---------

The geometry is a cube with a side of :math:`1m`.


.. image:: images/10000000000002A9000001EAF7840BF799183D95.png
    :width: 4.3307in
    :height: 3.1138in


.. _RefImage_10000000000002A9000001EAF7840BF799183D95.png:


Meshing
--------

The mesh is made with 1 HEXA8.


Materials
---------

The material is BETON_RAG. The necessary characteristics are those related to damage and creep phenomena.

**Do not** **not use the material characteristics of** "BETON_RAG" **of this test case for studies. They are not physical, they are used for mathematical verification.**

MATFLUA **= DEFI_MATERIAU (**

**ELAS =** **_F (E** **=** 32000.0E+06, # unit [Pa]

**NU =** 0.25, **)**) **,**#****without****unit**

**BETON_RAG =** **_F (**

**#** **mechanical characteristics**

**ENDO_MC** **=** 1.95, **#** ***without** **unit**

**ENDO_MT** **=** 2.00, **#** ***without** **unit**

**ENDO_SIGUC** **=** -35.00E+06, # unit [Pa]

**ENDO_SIGUT** **=** -3.18E+06, # unit [Pa]

**ENDO_DRUPRA =** 0.15,

**# characteristics for creep**

**FLUA_SPH_KR =** 89000.0E+06, # unit [Pa]

**FLUA_SPH_KI =** 22000.0E+06, # unit [Pa]

**FLUA_SPH_NR =** 156000.0E+06, # unit [Pa.Day]

**FLUA_SPH_NI =** 410000.0E+06, # unit [Pa.Day]

**FLUA_DEV_KR =** 42000.0E+06, # unit [Pa]

**FLUA_DEV_KI =** 22000.0E+06, # unit [Pa]

**FLUA_DEV_NR =** 117000.0E+06, # unit [Pa.Day]

**FLUA_DEV_NI =** 840000.0E+06, # unit [Pa.Day]

**)**,

**)**


Boundary, contact and loading conditions
----------------------------------------

For the cube free of lateral deformations
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The following movements are imposed on the faces:

• BAS :DZ = 0

• GAUCHE :DY = 0

• ARRIERE :DX = 0

• HAUT: forced displacement or imposed constraint.


For the confined cube
~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The following loads are imposed on the faces:

• BAS :DZ = 0

• GAUCHE, DROIT :DY = 0

• ARRIERE, AVANT :DX = 0

• HAUT: forced displacement or imposed constraint.


Modeling
------------

The modeling is 3D.