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Sign convention of shear stress confusion

  1. Dec 17, 2016 #1
    1. The problem statement, all variables and given/known data
    In my book , i was told that when the shear stress turn a plane of element clockwise , then the shear stress is positive ,
    In this question , we can notice the shear stress of 40 will turn the plane clockwise , why the author plot the stress at A = (80,-40) ? Shouldn't it be at A = (80,40) ?
    2. Relevant equations


    3. The attempt at a solution
     

    Attached Files:

  2. jcsd
  3. Feb 16, 2017 #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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