error 15

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

Hi , I am running topology optimization , i am running the model with volume fraction constraint of different values 0.1 and 0.15. I got my run successfully with volume fraction constraint of 0.15. But i am getting problem with model with volume fraction constraint 0f 0.1. I am getting error like this

ITERATION 7

ERROR # 15 FROM SUBROUTINE eofb

CTETRA element 1104687 is distorted (negative Jacobian).

***** FATAL INPUT DATA ERROR *****

This error occurs in subroutine slvdrv

***** FATAL ERROR ENCOUNTERED *****

************************************************************************

Pls give some suggestion on this

Thanks

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited June 2008

    A volume fraction of 0.1 is really to low to get meaningful results.

    Why are you trying such a low value?

    Greg.

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