NL GEOM Not covergence

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

Hello,

 

we try to simulate rubber with subcase NL GEOM, there is no error occurs but can't convergence.

thanks

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2020

    Please refer to this file for details condition

     

    Please advice

    Unable to find an attachment - read this blog

  • Rahul Rajan_21763
    Rahul Rajan_21763 New Altair Community Member
    edited May 2016

    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.
     

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