Reference problem
====


Geometry
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It is a material point: a state of homogeneous stresses and deformations. This can be represented by a single finite element, with appropriate boundary conditions, as in SSNP14 and SSNP15.


Boundary conditions and loads
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A loading path defined by a tensile component and a shear component is imposed, in the following manner:


.. image:: images/10000000000001E6000000BAA60C9A305B939BA2.png
    :width: 3.7673in
    :height: 1.4764in


.. _RefImage_10000000000001E6000000BAA60C9A305B939BA2.png:


Material properties
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The behavior is Von Mises elastoplastic, with isotropic work hardening. Work hardening is linear.


.. image:: images/100000000000028500000105A91C860A49A06314.png
    :width: 3.9681in
    :height: 1.5571in


.. _RefImage_100000000000028500000105A91C860A49A06314.png: