Abaqus 16.14 with UMAT subroutine completing analysis preprocessor, but when entering first increment nothing happends . Which can be the problem?

Gurutz Cortabiterte @Gurutz-Cortabiterte

27 April 2023 0 4K Report

I ran the analysis without UMAT, and everything went well. However, when I implemented the UMAT, everything seemed to go well until the first increment started, and Abaqus stopped calculating. It can remain like that for hours without any increment being resolved.

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