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jdoshi1-Visitor
1-Visitor
January 31, 2016
Question

creo 2.0

  • January 31, 2016
  • 2 replies
  • 3452 views

anybody know how to get factor of safety of part after analysis ??

here , I want to get fos of part.

Capture.JPG


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2 replies

U
unickque1-Visitor
1-Visitor
February 1, 2016

Factor of safety is defined as FS = allowable value / actual value

So in your example, suppose the allowed deformation is 8mm, then your FS on deformation = 8 / 4.2 = 1.9

For stress, the material's yield stress is usually used as allowable (FS on plastic deformation) or sometimes the material's ultimate stress (FS on failure).

Or if your part is loaded repeatedly, you might want to calculate the FS on fatigue. This can get complicated, but for steel a good first estimate is to use the materials fatigue strength as allowable. (Fatigue strength is the maximum stress that the material can endure indefinately, so the asymptote in the S-N-curve).

    J
    jdoshi1-VisitorAuthor
    1-Visitor
    February 1, 2016

    Thanx, but we needed FS at everypoint of component in analysis for our project.

    J
    JonathanHodgson13-Aquamarine
    13-Aquamarine
    February 1, 2016

    If the analysis is linear, just apply a scaling factor of (1/allowable value) in the results window (you might need to have more than one load set to enable this option).

    It will give you exactly the same plot, just with the numbers scaled... (I'm not sure quite what additional information this will provide).

      D
      DenisJaunin15-Moonstone
      15-Moonstone
      February 1, 2016

      Hello Jainam,

      On the simulation of your parts I see that constraints are very high.

      I'm wrong can be.

      I do not know what is the material on the basis of its forms?

      Kind regards.

      Denis.

        J
        jdoshi1-VisitorAuthor
        1-Visitor
        February 1, 2016

        thank you sir.

        in this part may force value change.

        but with the help of FOS. I want to optimise my part.

        Jainam Doshi

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