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Relationship between displacement and stress

  1. Dec 2, 2015 #1
    Hi, Am I right in saying that if the gradient of displacement is negative then stress is negative as in a simple elastic case, sigma = E*du/dx? thanks.
     
  2. jcsd
  3. Dec 2, 2015 #2
    Yes. It means that the rod is being compressed.
     
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