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Quick Euler Buckling question

  1. Mar 17, 2010 #1
    I should probably know the answer to this but anyway....

    I want to compute the critical buckling load for a simple 3D rectangular cross-section beam, though the thickness in the z-direction is small.


    If a load is applied in the negative y direction, which direction do I use for my second moment of area value? Ixx or Iyy?

    Thanks for any info.

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  2. jcsd
  3. Mar 17, 2010 #2


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    How about trying both, then using the results to decide what buckling plane is most likely?
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