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Homework Help: Calculating traction fields

  1. May 18, 2012 #1
    1. The problem statement, all variables and given/known data

    Question (specifically part b):

    attachment.php?attachmentid=47395&stc=1&d=1337342357.png

    Solution:

    attachment.php?attachmentid=47396&stc=1&d=1337342357.png

    3. The attempt at a solution

    My issue is that I don't agree with [itex]\Gamma^{0}_{3}[/itex] and [itex]\Gamma^{1}_{3}[/itex], surely if they're given by [itex][n][/itex] they should be given by [itex]\mp(0,0,\rho g x_{3})[/itex]. The answers they have don't make sense, because traction fields should satisfy [itex]t(-n,x) =-t(n,x)[/itex] (i.e. every reaction has an equal and opposite reaction).

    Can someone point out to me where I'm going wrong?
     

    Attached Files:

  2. jcsd
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