NonLinear Bending

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

Hello,

could someone help me? I want to bend my plate using moment until its collapse. but everytime I run it with optistruct, the SPCF Moment always going up like pict below.

image.png.075dc5ead899455eb9b32de70a94a44b.png

 

I want to make the moment going down like pict below. In every journal I read it always going down.

 

image.png.ef60c1da4dd0121af98e4281542ccb51.png

 

 

and every time I add more moment to my model, it wont be converged anymore

 

anybody know whats wrong with my model? or my setting?

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Answers

  • Adriano A. Koga
    Adriano A. Koga
    Altair Employee
    edited September 2020

    Hi,

    Are you using LGDISP in your model?

    NLPARM(LGDISP) in the loadstep activates it.

    What about your mesh? Is it refined enough?

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited September 2020
    Altair Forum User said:

    Hi,

    Are you using LGDISP in your model?

    NLPARM(LGDISP) in the loadstep activates it.

    What about your mesh? Is it refined enough?

    Yes, I use LGDISP in NLPARM (NINC  1000) and I've activated it in loadstep too.

    my mesh is so simple, I think it's good enough for analysis

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