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

Loading
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Initially, the load was modelled by a *time history* of a uniform load q1 = 10,000 N/m (as below).


.. image:: images/1000020100000184000000969C3BC3C06EE98DC2.png
    :width: 4.0417in
    :height: 1.5626in


.. _RefImage_1000020100000184000000969C3BC3C06EE98DC2.png:

**Figure** 1.1-1

In code-aster, this is therefore converted into nodal loads, shown below.


.. image:: images/1000000000000FA0000008CAA3FFA98E39A5EA7C.png
    :width: 6.5445in
    :height: 2.2535in


.. _RefImage_1000000000000FA0000008CAA3FFA98E39A5EA7C.png:

**Figure** 1.1-2

The magnitude of the nodal forces varies as a function of time as shown in Figure 1.1-1 with q1 = 1, t1 = 2.38e-2 (s) and t2 = 5.95e-2 (s).


Liaisons
--------


* Embedding PT_5 (DX=DY=DZ= DRX = = DRY = DRZ =0)


* Embedding PT_32 (DX=DY=DZ= DRX = = DRY = DRZ =0)


Geometry
---------


* Beam PT_5 to PT_12 and PT_23 to PT_32


.. csv-table::

    "Characteristics", "Value", "Unit"
    "Inertia", "19.43*106", "mm4"
    "Area", "2 872", "mm²"


Table 1.3-1


* Beam PT_12 to PT_23


.. csv-table::

    "Characteristics", "Value", "Unit"
    "Inertia", "83.56*106", "mm4"
    "Area", "5 356", "mm²"


Table 1.3-2


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


* Beam PT_5 to PT_12 and PT_23 to PT_32


.. csv-table::

    "Characteristics", "Value", "Unit"
    "Young's module", "200,000"," MPa"
    "Poisson's ratio", "0.30", "[-]"
    "Density", "7,800", "kg/m3"


Table 1.4-1


* Beam PT_12 to PT_23


.. csv-table::

    "Characteristics", "Value", "Unit"
    "Young's module", "200,000"," MPa"
    "Poisson's ratio", "0.30", "[-]"
    "Density", "7,916", "kg/m3"


Table 1.4-2


Bibliographical references
---------------------------


1. VPCS: Guide to the validation of structural calculation software packages: "test SDLL03 -89", SFM, AFNOR technique.