Stress result

Dear Sirs,

In AutoPIPE, how can I know a stress (sustained, expansion) at a point is compression or tension? All of the stress in the result grid are positive so I cant know by its sign (- or +).

And if a pipe is bent, the stress will be tension in 1 side and compression in another side, so how can I know it?

Thanks very much!

Parents Reply
  • :(

    It seems that everyone is busy! But I have found the reason why AutoPIPE provides Sustained, Expansion, etc. But it doesn't mention clearly about stress components which include shear, axial and hoop.

    I am doing B31.3 so the result grid doesn't show shear, hoop, axial stresses. Is there anyway that i could get them in AutoPIPE (under all load combination GR+P+T)? Because it will need for our crack evaluation (you know the different component will affect deferentially to the phenomenon).

    Thank very much.

Children
  • Hello Flashing, 

    When analyzing with ASME B31.3, there are 2 different output report / grid sections: 

    1. General Stress

    2. Code Compliance / Stress

    The General Stress report has all the information that you are talking about for non-code combinations. While the Code compliance report has has all the requirements for code calculations. 

    See  image below:

    Regards,

    Mike Dattilio
    Bentley Systems Design Analyst
    Design Engineering Analysis group
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