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Hello,
we try to simulate rubber with subcase NL GEOM, there is no error occurs but can't convergence.
thanks
Please refer to this file for details condition
Please advice
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This message is generally following different modeling error messages: “STIFFNESS MATRIX IS NOT DEFINITE”, “…TOO LARGE ENERGY VALUE”.
Often, it was about the constraint conditions or too large time step. Please check you BC’s and try to reduce the initial time step and see if this helps.
