Reference problem
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Geometry
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.. image:: images/10000000000001C3000001BD45AB5C65E891043D.png
    :width: 4.602in
    :height: 4.5409in


.. _RefImage_10000000000001C3000001BD45AB5C65E891043D.png:

Figure 1.1:

We consider a two-dimensional plane structure in which a notch is present. The structure is a square plate with side 1; it is notched by a notch with a radius of 0.05 inclined at 30° from the horizontal.