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_Koga
    Adriano_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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