9 Replies Latest reply on Mar 12, 2014 12:00 PM by Bill McEachern

    Buckling analysis: Buckling Load Factor, factor of safety and design buckling load?

    Philip Eddy Eriksen

      Hello!

       

      Situation:

      I`m doing a buckling analysis on a "simply-supported" pinned-end solid beam  (IPE-profil) with high slenderness ratio and with a

      concentraded/stationary load on the middle on top of the topflange. The topflange is retained against rotation about the

      x-axis (the beams neutral axis).  The results from the simulation then show buckling of the web. The load is 1 N, so the critical buckling load

      will be 1 N multiplied with the BLF if I understanded this correctly?

       

      The main question:

      The critical buckling load is based on Euler`s theory and elastic behavior, right?

      How do I decide the factor of safety in witch im searching for the design buckling load?

       

      I have read that a safety factor of 4 is a good estimate, but how is this number determined?

       

      Thanks!