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Comments, Questions, and Answers about ASME B31.1 Piping Code Calculation Issues

Item #1: After changing the piping code edition from ASME B31.1 2010 to 2012 in AutoPIPE, the results are different, why?

Item #2: With ASME B31.1 piping code, which equation does the program uses for thermal stress in AutoPIPE?

Item #3: What is the correct method to apply the option of analyzing SAM load case moments in Eq 13 instead of Eq. 12 in the code using ASME B31.1 piping code in AutoPIPE?

Item #4: ASME B31.1 reference equation numbers seem to be wrong in AutoPIPE Reports.

Item #5: When comparing the hand calculated hoop stress results with that calculated by AutoPIPE are different, why?

Item #6: What value of Bend radius is AutoPIPE using when calculating the SIF of a 3/4" NPS, when radius = short, Long, 3D, or 5D ?

Item #7: How does the program calculate ASME B31.1 allowable values in AutoPIPE?

Item #8: Why is AutoPIPE automatically using ASME B31.J for SIF and flexibility calculations in ASME B31.1 2020?

Item #9: What is the significance of Bending stresses in ASME B31.1 2018?

See Also

Piping Code Calculations

Bentley AutoPIPE