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Homework Help: Direction of shear stress

  1. Nov 26, 2016 #1
    1. The problem statement, all variables and given/known data
    In the notes , i noticed that the shear stress on the top plane and the front plane will 'meet together' at the edge . I dont understand it why the direction is like that .

    2. Relevant equations

    3. The attempt at a solution
    Is it possible for both the shear stress to become like this (opposite direction ) ?

    Attached Files:

  2. jcsd
  3. Nov 27, 2016 #2


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    say fonz you are not paying attention, by now you should know that every vertical shear stress VQ/It in the xy plane is accompanied by a longitudinal equal stress in the z direction in the xz plane.
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