Find and delete elements that fail validity check

etrud011
etrud011 Altair Community Member
edited October 2020 in Community Q&A

Hello,

 

I would like to know how to find elements that fail the validity check and then delete them. Is there a method to do so in tcl?

 

Thank you

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Answers

  • vipin_22401
    vipin_22401 Altair Community Member
    edited September 2018

    Hi @etrud011,

     

    you can record the command using F10 panel and use it accordingly, for example

     

    *createmark elements 1 'displayed'
    *createmark elements 2
    *elementtestjacobian elements 1 0.7 2 2 0 '  2D Jacobian  '
    *deletemark elems 2

  • Pandurang
    Pandurang Altair Community Member
    edited September 2018

    *createmark elems 1 displayed

    hm_getelementsqualityinfo 1 0 2;

    *deletemark elems 2

  • etrud011
    etrud011 Altair Community Member
    edited September 2018

    Thank you Pandurang and Vipin!

     

    I am trying to delete tetra4 elements with aspect ratio above 10^5. But hypermesh is telling me that the aspect ratio some of those elements is 4.12 and will not create a mark on them for deletion. Optistruct will not start because there is a validity check fail due to aspect ratios above 10^5. How is that possible?

     

    The code I am using is below;

    *createmark elems 1 'all'

    #does not find problems elements
    set elems_ids2 [hm_getelemcheckelems 1 3 aspect above 100000]

     

    It does not find the problem elements. Also I do not understand how to use 'hm_getelementsqualityinfo 1 0 2;', it returns zeros each time.

     

    Edit2: The problem was that I was looking at the wrong aspect ratio type.

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