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Deflection of a tube beam where hollow is off-center

  1. Jun 29, 2012 #1
    So I am trying to figure out how I can calculate the deflection and ultimate bending moment capacity of a hollow tube beam when the hollow portion is not concentric. A regular concentric tube is easy enough but this has me out of my depth.

    I assume that it will no longer be symetric in its reaction and capacity but I am not really sure.

    Any tips, links, or general thoughts to get me started in the right direction would be greatly appreciated.

    Thanks...

    RKM
     
  2. jcsd
  3. Jun 29, 2012 #2

    haruspex

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    Is the axis of the bending moment in the same plane as the the two cylindrical axes?
     
  4. Jul 2, 2012 #3
    Hmmm.. I want to say "no" but I can also see that complicates the problem considerably, the axis of deflection is (I think) no longer in the direction of the load :-(

    Let's say "yes" for now and then if my brain doesn't explode trying to wrap itself around that problem I will try to tack the more complex case later.

    RKM
     
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