Features and verification
===============================

The law of behavior is inseparable from the D_ PLAN_GRAD_SIGM modeling. We can therefore only do plane modeling. The description of the parameters as well as the identification tips are given in section :ref:`4.4 <RefNumPara__31562568>`.

The law of behavior ENDO_HETEROGENE as well as the D_ PLAN_GRAD_SIGM modeling are verified by the following test cases:


.. csv-table::

    "SSNV147 ", "Modeling crack initiation with the ENDO_HETEROGENE model ", "[:external:ref:`V6.03.147 <V6.03.147>`]"
    "SSNV148 ", "Calculation of the stress intensity factor by the regularization of stresses with ENDO_HETEROGENE ", "[:external:ref:`V6.03.148 <V6.03.148>`]"


Note:

In parallel computing, when a calculation is performed on several processors with law ENDO_HETEROGENE, nothing guarantees the uniqueness of the solution because of the boot thresholds generated randomly. It is possible to have a machine sensitivity of the order of 1.E -3%. In some cases, there may be numerical non-convergence problems. That is why it is advisable to deactivate data distribution with AFFE_MODELE/DISTRIBUTION =' CENTRALISE '.