Von mises and Tresca Yield criterion - theory of plasticity

  1. 1. The problem statement, all variables and given/known data
    Please help me with this homework, I have not understood much even I've tried to read many books about the 2 criterion. The reason maybe my teacher write english on blackboard but he explains in korean so i cant understand what is the condition of the tube in this homework :P


    2. Relevant equations
    In my opinion, this one is about 2 above criterion, I have to complete the part 2, please see the attached picture!
    The second condition must be pure shear stress or something.
    I have uploaded the picture and word file of this homwork, please see for more detail

    http://imageshack.us/photo/my-images/690/hw3plasticity.png/
    http://www.mediafire.com/?pxr4b7ea8zbqycx

    3. The attempt at a solution
    Best regards,
     
  2. jcsd
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