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Help with shear stress and angle of twist

  1. Dec 8, 2013 #1
    A solid shaft 100mm diameter which transmits 75kw at 150 rev/min.

    the question is asking me to find the max shear stress and angle of twist per metre of the shaft length.

    G=80GN/m^2

    I was under the impression to find the angle of twist you needed the length in the first place. None of the examples in class had length missing.
    I worked the shear stress out as 2.4mNm^2

    Thanks for any help
     
  2. jcsd
  3. Dec 8, 2013 #2

    SteamKing

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    "the question is asking me to find the max shear stress and angle of twist per meter of the shaft length."

    I'm unfamiliar with units of 'mNm^2' for stress.

    Anywho, if you want any help on this question, you need to provide some of your work.
     
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