strain energy is NaN problem

Yu JH
Yu JH Altair Community Member
edited January 2023 in Community Q&A

*** ERROR # 7053 ***
 The strain energy of Element id = 227397 is NaN.

 

I'm getting this error consistently. I tried remeshing every component and give a different value of forces and still getting this error. What's possible cause of this error? I tried searched what is this about but getting no info about this. I'm using optistruct nlexpl.

Tagged:

Answers

  • Adriano_Koga
    Adriano_Koga
    Altair Employee
    edited January 2023

    Are you using any timestep control (mass scaling)?

    Maybe this particular element is deforming too much. It is hard to tell by looking only t this message.

    Can you provide a few more detaisl about your model, and what are you trying to run?

  • Yu JH
    Yu JH Altair Community Member
    edited January 2023
    Adriano A. Koga_21884 said:

    Are you using any timestep control (mass scaling)?

    Maybe this particular element is deforming too much. It is hard to tell by looking only t this message.

    Can you provide a few more detaisl about your model, and what are you trying to run?

    I found that element quality was not that good.

    Recommended range violations:
     ------------------------------------------------------------------------------
     Element     Property          # of     Recommended Range    Max.  Viol.  Elem.
                                   Viol.     Lower     Upper    Value  type    No.
     ------- ------------------- -------- --------- --------- --------- --- -------
     HEXA    Edge Angle                 7        --     60.00     60.87  U    96212

    I remeshed with penta element and it is running without problem yet. So my understanding is element without good equality caused the problem.

     

Categories