Is there a way to manually input the SIF for an eccentric reducer without having to enter the cone angle, r2, and L2 while using the 2020 version of B31.3?

Parents
  • Sean and Mike,

    I tried using the 6 deg that Sean had suggested and I still get the same warning messages (sharing below now). Mike, thank you for pointing me to those sections. It did give me some more insight into the SIF factor and how it is calculated. My main problem is that it wants me to enter the cone angle, r2 value, and L2 value in the latest version of AUTOpipe where in the previous version I don't remember it doing this. Here are the warning messages I receive. Any help is much appreciated!

  • Greetings, 

    Please noted that most of the latest ASME codes require the use of ASME B31.J for SIF calculations where before they where calculated based on an appendix with in the given code. And, since manufacturers vary dimensions on piping components not controlled by a standard, the user must entre values for dimensions required for these new SIF calculations ; i.e. cone angle, r2, l2, etc..    

    With regards to these other warning messages you had shown above, again are from the requirements of ASME B31.J. Suggest that you review the warning, AutoPIPE help, and the code to understand what happens if one or more of the warning are ignored.

    Regards,
    Mike Dattilio
    Design Analysis Engineering Group
    Senior Analyst Bentley Systems Inc
    =============================================================================

Reply
  • Greetings, 

    Please noted that most of the latest ASME codes require the use of ASME B31.J for SIF calculations where before they where calculated based on an appendix with in the given code. And, since manufacturers vary dimensions on piping components not controlled by a standard, the user must entre values for dimensions required for these new SIF calculations ; i.e. cone angle, r2, l2, etc..    

    With regards to these other warning messages you had shown above, again are from the requirements of ASME B31.J. Suggest that you review the warning, AutoPIPE help, and the code to understand what happens if one or more of the warning are ignored.

    Regards,
    Mike Dattilio
    Design Analysis Engineering Group
    Senior Analyst Bentley Systems Inc
    =============================================================================

Children
No Data