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


Geometry
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Consider a rectangular steel plate of :math:`\mathrm{2m}\mathrm{\times }\mathrm{1m}\mathrm{\times }\mathrm{1cm}`.


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

The material is isotropic elastic whose properties are:


* :math:`E=210000\mathit{MPa}`


* :math:`\nu =0.3`


Boundary conditions and loads
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The plate is simply supported on its 4 corners: the translations are blocked, the rotations are free.


Initial conditions
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Not applicable for modal analysis.