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


Geometry
---------

The geometry is restricted to the crack tip noted :math:`B`.


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

The material is elasto-plastic. It is not necessary to provide traction curves, as the test does not perform a finite element calculation. Quantities such as temperature and energy recovery rates are directly extracted from tables. Only the material parameters useful for post-processing are provided:


* Poisson's ratio :math:`\nu =0.3`


* Young's module

    .. image:: images/1000020100000640000004B0207721657B4355AE.png
        :width: 5.3937 in
        :height: 4.0354 in


    .. _RefImage_1000020100000640000004B0207721657B4355AE.png:


* Tenacity :math:`{K}_{\mathit{IC}}` given in the form of a temperature-dependent curve, under the keyword factor RUPT_FM of the command DEFI_MATERIAU


.. image:: images/1000020100000640000004B0C02E7C32602F996B.png
    :width: 5.3937in
    :height: 4.0311in


.. _RefImage_1000020100000640000004B0C02E7C32602F996B.png: