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Homework Help: Castigliano's Theorem for Trusses

  1. Dec 14, 2012 #1
    Can we get the rotation(Slope) of a TRUSS member, let's say a warren truss using Castigliano's Theorem? Thanks.
  2. jcsd
  3. Dec 30, 2012 #2
    In principle, yes, but it depends on the nature of the joints and the loading as to how difficult that is going to be. Even in a pin-jointed frame loaded only at the nodes, where negligible end rotation of members will occur, the joint as a whole may deflect along two axes and imply MEMBER rotations, as distinct from the member end rotations that would arise if the loading was not nodal.
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