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Tresca criterion in terms of invariants

  1. Dec 8, 2016 #1
    Hi,

    The Tresca Critrion is given in the form of non continuous equations:

    Max(½|σ12|,½|σ23|,½|σ31|) = k

    How did they come up with the invarient equation

    f(J2,θ) = 2√J2 * sin(θ+⅓π)-2k, θ from (0 to 60)
     
  2. jcsd
  3. Dec 13, 2016 #2
    Thanks for the thread! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post? The more details the better.
     
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