.. _U2.10.01:

**u2.10.01** Instructions for using the coupling between Code_Aster and the behavior laws module UMAT
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**Summary:**

Here we describe the use of the coupling between *Code_Aster* and the behavioral law integration module UMAT, a "user" routine whose arguments are specified by the Abaqus code.

Attention: the use of these laws of behavior "by custom" implies a specific validation for the study under consideration, because we are outside the field qualified of*Code_Aster*.




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    Modalit_s_d_utilisation_des_routines_de_type_UMAT