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Homework Statement
I want to find the euler buckling for a open I beam( middle section like a box) that is subjected to three point bending with a point load on top.
I am not so interest in a solution but explanation on how this could be worked out using the euler equation for buckling.
Homework Equations
Pcr=(PI^2)EI/L I am pretty sure this is for a column with pinned ends but don't know how to work out one for an i beam in 3 point bending
The Attempt at a Solution
Don't want a solution can put numbers in myself