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


Geometry
---------


.. image:: images/1001A262000069D500006DC31EFA4D68D80F2E63.svg
    :width: 314
    :height: 325


.. _RefImage_1001A262000069D500006DC31EFA4D68D80F2E63.svg:


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

Elastoplastic material without work hardening

:math:`E=3.E+07\mathrm{MPa}`

:math:`\nu =0.3`

:math:`{\sigma }_{y}=3.E+04\mathrm{MPa}`


Boundary conditions and loads
-------------------------------------

Point :math:`A`: :math:`{u}_{x}=0`

Point :math:`B`: :math:`{u}_{y}=0.`

The following loading (= internal pressure) is applied:

:math:`p=1.737{p}_{0}` (near the ruin) with :math:`{p}_{0}=658.257\mathrm{MPa}` (end of the linear regime)

Load :math:`p` is applied in 50 identical increments.