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Homework Help: Question about a brittle material with a flaw

  1. Sep 5, 2007 #1
    Would the graph of a brittle steel with a flaw in it (from load 0 to sharp-notch strength, or SNS) somewhat resemble a graph of f(x) = (e^x) - 1? I know this seems like a weird question, but I'm analyzing some data gathered at the lab, and I can't seem to make sense of it.
  2. jcsd
  3. Sep 8, 2007 #2


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    How much plastic/permanent deformation does the test achieve.

    Are the uniform and total elongation close?

    With a large enough flaw, I would expect failure might occur before UTS, and maybe even before YS is achieved.
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