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Difference between Euler's critical load and Buckling Analysis "F" parameter

User: "LFSS"
Altair Community Member
Updated by LFSS

Hello, all

I've got a trussed structure I'm woring on, but when I call a buckling analysis, it gives me this result:
image 
But, when I extract the element forces via ELFORCE, it gives that, in that particular member, Ive got a 167N force, which I used to calculate manually Euler's critical load. Pcrit equals 42N, but the F paramenter in OptiStruct (which should give the ratio of Euler's load with the acting load) gives me a far lower ratio. Any clue why that is?

 

thanks in advance! 

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