zero moment of inertia

Harry Zhang
Harry Zhang New Altair Community Member
edited December 2022 in Community Q&A

when I run S-Frame, I got a problem of "zero moment of inertia about z axis" for a section 2L102X76X7.9, how can I deal with this issue?

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Answers

  • Matthew_Sauer1
    Matthew_Sauer1
    Altair Employee
    edited December 2022

    Hi Harry,

    Thanks for getting in touch.  This message should not be thought of as an error, but rather something the solver in S-FRAME wants to make you aware of.

    For steel database sections, S-FRAME will read the section properties from the steel database verbatim.  In the case of some section databases, certain values are not provided, and as such S-FRAME will keep the magnitude of that property as zero.  S-FRAME's solver will then report if that section property is zero, during analysis.

     

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    If you do want to remove this message, you can always enter a non-zero value for the moment of inertia about the Z-axis.

    Regards,
    Matthew Sauer

    Altair Support

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