How can I modify BAR element to be deformed with 'tension only'?

W. T
W. T New Altair Community Member
edited June 2022 in Community Q&A

I will make a FE model of a cervical spine with ligaments. I will model the ligaments to be 1D elements and want to modify them to be deformed with 'tension only.'

Would you suggest the process to prepare this model? How can I do that?  

Thank you for your answer.

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Answers

  • Alihan Alayoğlu_22549
    Alihan Alayoğlu_22549 Altair Community Member
    edited June 2022

    Use gap elements overlapping with each bar element. Set Ka=1e20 and Kb=1 -I hope you'r not workin on micromechanics :)- for the PGAP property. System will act like rigid at compression loads and represent a natural bar element behavior at tension loads. Select FLIP from Card Edit-CID Options for reverse.

     

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