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In-Plane torsion of a ring?

  1. Feb 27, 2009 #1

    dav2008

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    Hello,

    Does anyone have any suggestions on how to approach torsion of a thin-walled thin ring/oval?

    so if this is a top view of the ring: O then the torque would be applied with the torque vector pointing as O--> (ring is fixed at the opposite end).
     
  2. jcsd
  3. Feb 27, 2009 #2

    dav2008

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    I guess one thought is to treat it as a varying cross-section and integrate, but it's not a circular cross-section so the typical Tr/J formula wouldn't apply.
     
  4. Feb 27, 2009 #3

    FredGarvin

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    So the torque is really a moment that is trying to "fold" the o-ring in half?

    What are the rest of the boundary conditions?
     
  5. Feb 27, 2009 #4

    dav2008

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    Last edited by a moderator: May 4, 2017
  6. Mar 11, 2009 #5
    So, what do you want to know? Can your question be answered as a rigid body dynamics problem?
     
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