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

Loading
----------

The mobile load with an intensity Fy = -48,000 N moves at a speed of 10 m/s for 1 s. The damping in question is zero.

For modeling in code-aster, the load will be modeled by a nodal force at a node on the :math:`{x}_{i}` axis whose maximum value (value at time t2) is calculated from the zone of influence. The nodal force is varied as a function of time as follows:


.. image:: images/1000020000000FA0000008CA168931E3F80DAF5E.png
    :width: 4.3098in
    :height: 1.7783in


.. _RefImage_1000020000000FA0000008CA168931E3F80DAF5E.png:

**Figure** 1.1-1

In code-aster, the maximum values and the peak time associated with each node are shown in the following figure:


.. image:: images/1000000000000FA0000008CA94EF01E8E213CE03.png
    :width: 6.889in
    :height: 3.8752in


.. _RefImage_1000000000000FA0000008CA94EF01E8E213CE03.png:

**Figure** 1.1-2


Liaisons
--------


* Support PT_5 (DY=DZ= DRX = = DRY =0; KX = 100 N/m and KRZ = 0.1 N.m/rad)


* Support PT_100 (DX=DY=DZ= DRX = = DRY =0; KRZ = 0.1 N.m/rad)


Geometry
---------


.. csv-table::

    "Characteristics", "Value", "Unit"
    "Inertia", "5*106", "Mm4"
    "Area", "12,500", "mm²"
    "Shear coefficient", "0.8497", "[-]"


Table 1.3-1


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


.. csv-table::

    "Characteristics", "Value", "Unit"
    "Young's module", "210,000"," MPa"
    "Poisson's ratio", "0.30", "[-]"
    "Density", "8,000", "kg/m3"


Table 1.4-1


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


1. VPCS: Guide to the validation of structural calculation software packages: "test SDLL07 -89", SFM, AFNOR technique.