Moment causing buckling

  • Thread starter roanoar
  • Start date
  • #1
13
0
Can a moment about the end of something cause buckling or does it need to be an applied force?

For instance the uploaded image

Thanks!
 

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Answers and Replies

  • #2
8
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Although I do not know your end conditions from your drawing, a end applied moment cannot cause buckling. Buckling arise from the deflection equation E I y'' = M where M is proportional to the lateral deflection, y. In your problem, M, shown above, is just your end applied load and is never a function of the deflection.
 
  • #3
13
0
thank you!
 
  • #4
8
0
No problem,

I thought I would reply with some additions. My colleague informed me that you can get localized buckling after the beam has deformed. Localized buckling means that it can kink at the edges.
 
  • #5
13
0
I see. That does make sense. Would that lead to structural failure though?
 
  • #6
8
0
I honestly don't know. I would suspect, however, that the failure criterion that you need to worry about is the bending stresses due to the deflection.
 

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