*** INTERNAL PROGRAMMING ERROR # 261 ***

Pedro Neves
Pedro Neves Altair Community Member
edited October 2020 in Community Q&A

Hi, I'm trying to do a linear buckling analysis with a 2D shell element. I don't know why, sometimes the analysis runs with no problems (right now, I tried to do it with an element size of 25mm and it gave no problems), but when I try to minimize the element size it gives me the next error 

 

*** INTERNAL PROGRAMMING ERROR # 261 ***
 Error while read/writing ia segment.
 Starting entry = 1.
 Specified length = 566805.
 Expected length = 174.

 *** INTERNAL PROGRAMMING ERROR ***
   in file 'fiospa_new.F', at location # 1425.

       ioerr(1) =          4
       ioerr(2) =          1
 ****  ABORTING RUN DUE TO AN INTERNAL ERROR  ****
 

I'll attach 2 models, one with 25mm element size, where the analysis it's alright, and another with 15mm element size, where I get the error

Unable to find an attachment - read this blog

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2018

    Hi Pedro Neves,

     

    I'm able to run 15mm model but i was getting error while running 25mm  model. Then, I re-applied the constrain and load. Now it works fine.

    Please try the same.

     

    Thank you

     

     

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2018

    Hi Pedro Neves 

     

    Is your issue resolved?..

     

    Thank you

     

  • Pedro Neves
    Pedro Neves Altair Community Member
    edited December 2018

    Sorry @Premanand Suryavanshi, I didn't receive the notification of your answer and I only went to my posts now. I don't really remember how I solved the problem, but I was able to run the analysis somehow. Thanks for the help anyway!

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