Superimpose subcase results in linear static analysis

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

Hello,

 

I am trying to run a linear static analysis which has 36 loadsteps. I need to apply these loadsteps in sequence and need the results from the previous step to be retained for the next step. I am trying to use the statsub(preload) card but it gives an error that subcases cannot be nested. What is the right way to do this in a linear static analysis.

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2017

    Hi Swapnil,

     

    Have you tried CNTNLSUB?

     

    The CNTNLSUB is used to continue a nonlinear solution from a preceding nonlinear subcase, and thus create complex loading sequences.

     

    Please note that this works with non-linear solutions. So you can start with NLSTAT instead of linear static. 

     

    I would also suggest you to go through CNTNLSUB comments section on OptiSrtuct help for more information about the same. 

     

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