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Homework Help: Strain in different direction

  1. Oct 6, 2016 #1
    1. The problem statement, all variables and given/known data
    the tensile force is applied at x direction to the cube , the cube will decrease in size in y and z direction , right ?
    according to notes,
    the strain in x direction εx = σxy/ E , where σy = normal stress in y direction ,

    2. Relevant equations

    3. The attempt at a solution
    Which is correct ? I think the εx = σx / E make sense , so i think it's correct , because the force is applied in x direction .
    Correct me if i am wrong

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    Last edited: Oct 6, 2016
  2. jcsd
  3. Oct 7, 2016 #2
    Get rid of this horrible book. There are typos in 2 out of the 3 equations it presents on just this single page. I will no longer answer any questions about the information in this book.
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