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Table of fatigue strengths for different steels

  1. Jul 3, 2005 #1
    I'm looking at a table of fatigue strengths for different steels. I would like to know what the figures mean. For instance, for S235 under streching/pressure it says [tex]0\pm160[/tex] and [tex]130\pm130[/tex]. I believe the values are supposed to be average tension pluss/minus amplitude tension, but I'm not sure. I'm hoping someone can explain this to me, and so maybe I can understand the Smith-diagrams soon as well.
     
  2. jcsd
  3. Jul 3, 2005 #2

    brewnog

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    Pretty much. The values will be mean stress (not tension), followed by the stress amplitude for the particular fatigue test used.
     
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