But === The purpose of this command is to calculate, in post-processing, a nonlinear mechanical calculation elasto-plastic, the probability of cleavage from the Beremin model as well as the Weibull constraint. This command returns a table and a MED file (optional). The macro command works in D_ PLAN, C_ PLAN, AXIS or in 3D. The Beremin model is described in detail in the reference material [:ref:`R7.02.04 `]. Tips for using this model are given in the documentation [:ref:`U2.05.08 `]. The test case for using POST_BEREMIN is available in [:external:ref:`V1.01.163 `].