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Homework Help: Planes stress in a truss

  1. Dec 14, 2016 #1
    1. The problem statement, all variables and given/known data

    For part b , i think one of the angle either $$\theta_s$$ or $$\theta_p$$ is wrong
    For the second question , what is plane stress ?

    2. Relevant equations

    3. The attempt at a solution

    1.) Because in mohr's circle, the maximum shear stress on the vertical axis , for the maximum normal stress , it's on the horizontal axis , right ?

    Attached Files:

    Last edited: Dec 14, 2016
  2. jcsd
  3. Dec 14, 2016 #2
    I am sorry that the title of the topic is confusing . I think the part a is not related to part b
  4. Dec 15, 2016 #3
  5. Dec 15, 2016 #4
    Or is my sketch of mohr's circle is wrong ?
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