Large Displacement

FaroukM
FaroukM Altair Community Member
edited October 2020 in Community Q&A

Hi everyone ! 

 

I'm trying to study large displacement of 2D model in OptiStruct in order to compare the results with our FE solver ! 

 

In my solver, I'm using Saint Venant Kirfchhof behaviour law to resolve Non-Linear Large Displacement problem. 

 

When I perform the same simulation with OptiStruct I find something weird ! Maybe it's due to behaviour law in OptiStuct ... For sure I'm using the wrong one (not SVK one). 

 

My question  : Is there is a way, in OptiStruct, to write a subroutine (SVK behaviour law) ... and run the simulation using the user behaviour law (written in the subroutine) ? 

 

Best regards,  

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Answers

  • Rahul Rajan_21763
    Rahul Rajan_21763 New Altair Community Member
    edited July 2019

    Please refer attached material to use user defined material in OptiStruct.

    Unable to find an attachment - read this blog

  • FaroukM
    FaroukM Altair Community Member
    edited July 2019

    Thanks mate for your answer :)/emoticons/default_smile.png' srcset='/emoticons/smile@2x.png 2x' title=':)' width='20' /> 

     

    I have some questions :

     

    1- *dll file represent what exactly ? Library or package for user defined material ? 

    2 -  To define Saint Venant Kirchhof behaviour law, I should modify : 
    +,PROPERTY,210000.0,0.4,320.0,500.0,0.0,180.0,1.2e+2 ??! 

     

    Cheers ! 

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