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Stress and Strain ratios in sheet metal?

  1. May 2, 2016 #1
    Hello!

    I'm having some trouble understanding stress and strain rations in sheet metal forming. I understand that they're constants, but how do you calculate them? Or are they usually given?

    Thank you!
     
  2. jcsd
  3. May 2, 2016 #2

    Nidum

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    Science Advisor
    Gold Member

    Could you tell us more specifically what type of problem your question relates to ?
     
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