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Sign convention of shear stress

  1. Aug 18, 2016 #1
    1. The problem statement, all variables and given/known data
    In the in the first image , it's shown that the shear stresses has positive sign, whereas in the second image e (circled blue part) has different sign convention,which is positive and negative, which is correct?

    2. Relevant equations


    3. The attempt at a solution
    IMO, the second image is wrong
     

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  2. jcsd
  3. Aug 23, 2016 #2
    Thanks for the thread! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post? The more details the better.
     
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