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Calculating fracture strength

  1. Sep 22, 2012 #1
    Hi, I was wondering what the equation is to calculate theoretical fracture strength if you know the elastic modulus and flexural fracture stress?

    1. The problem statement, all variables and given/known data

    The flexural fracture stress for ordinary (i.e., soda-lime) glass is around 30–70 MPa. Based
    purely on the elastic modulus, what is the theoretical fracture strengthof this glass? How can
    the difference between reality and theory be explained?

    2. Relevant equations

    The elastic modulus for glass is 69 GPa.

    Thanks
     
  2. jcsd
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