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Mohr's Circle Problem

  1. Nov 10, 2012 #1
    1. The problem statement, all variables and given/known data
    Here is the question with the solution from the textbook and my solution:

    I don't understand the textbook solution because in their Mohr's circle the max shear stress is 65 Mpa. However, as stated in the problem, the max shearing stress is 80Mpa and this occurs 45 degrees from when the normal stress is max.

    Is my solution correct? Or have I been doing this wrong the entire time? Thanks!
  2. jcsd
  3. Nov 12, 2012 #2
    Does anyone know? :S
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