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AutoPIPE Wiki Flange Analysis - AutoPIPE
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          • -Flange Analysis - AutoPIPE
            • Q. Even with "zero loads and moments"; still AutoPIPE's Flange analysis results says the connection fails, why?
            • Q. Does the flange analysis in AutoPIPE determine expected leakage rates or just leakage?
            • Q. Flange analysis module, Load tab, why is Operating Pressure field is limited to 3000 psi in AutoPIPE?
            • Q. Flange Analysis Trouble shooting tips and tricks in AutoPIPE
            • Q. Flange calculation based on Gasket Seating note and ASME III Appendix XI - 2010 using AutoPIPE.
            • Q. Flange calculations only considers -ve axial force otherwise all other values are 0.00 in AutoPIPE Flange analysis reports, why?
            • Q. Flange data does not seem to be correct in AutoPIPE flange analysis module?
            • Q. Gasket Effective width does not match the ASME code value in AutoPIPE's Flange Analysis module, why?
            • Q. How do I perform an ASME Section VIII Div 1 / 2 or Appendix XI Flange Analysis in AutoPIPE?
            • Q. How to add a new material to the AutoPIPE's Flange Analysis library?
            • Q. How to add user defined Flange Pressure data for ANSI Check analysis method in AutoPIPE's Flange Analysis module?
            • Q. How to calculate the Effective Dia from Flange Analysis report in AutoPIPE?
            • Q. How to define gasket thickness in flange analysis module?
            • Q. How to perform an ANSI Check Flange Analysis with AutoPIPE
            • Q. Performing an AutoPIPE ANSI flange analysis, a specific flange always Fails to be analyze, Max Ratio = 0.00, why?
            • Q. Under what circumstances should "Consider Bolt Spacing Correction" option be enabled on the Analysis Tab of AutoPIPE's flange Analysis module?
            • Q. Warning - The Bolt spacing correction factor is greater than 1 because... message appears in AutoPIPE's report, why?
            • Q. What load case combinations are added to the Flange Analysis dialog? what is the selection criteria?
            • Q. When Int. press ration >1.0, does this mean that the Flange failed in AutoPIPE?
            • Q. Why are B16.5 or B14.7 selection options not shown on the Flange / bolt Dimensions dropdown listing when using AutoPIPE Flange Analysis module?
            • Q. Why does Max Ratio = 0.00 and Notes = Fail for flange in AutoPIPE Flange analysis module?
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    Flange Analysis - AutoPIPE

    The Result > Flange > Flange Check command will display the Flange Analysis dialog, enabling the user to apply several different flange analysis methods on every flange in the model. Standard flange data can be recalled from dimension and material libraries. For nonstandard (user-defined or NS) flange dimensions and material allowable stresses can be provided by the user.

    The Flange Analysis dialog can be used to analyze any flange in the model based on one of the following four analysis method options:

    1. ASME Section VIII, Division 1, Mandatory Appendix 2, Rules for Bolted Flange Connections with Ring Type Gaskets

    2. ASME Section VIII, Division 2, Section 4.16, Design Rules for Flanged Joints

    3. ASME Section III, Appendix XI, Rules for Bolted Flange Connections for Class 2 and 3 Components and Class MC Vessels

    4. ANSI Flange Loading Check

    Note:

    1. See Flange Analysis Troubleshooting tips and tricks

    2. See the following link for Flange Analysis Enhancements

    3.  For details on calculations performed, see AutoPIPE help section:

    Help ribbon> Contents button> Contents Tab> Reference Information> Analysis Considerations> Flange Check

    Comments, Questions, and Answers

    1. "Flange Analysis" sub-report in AutoPIPE
    2. Perform an ANSI Check Flange Analysis
    3. Flange calculations only considers -ve axial force, otherwise all other force values are 0.00
    4. Performing an ANSI flange analysis; a specific flange always Fails to be analyze, why?
    5. When Int. press ratio >1.0, does this mean that the Flange failed
    6. Perform an ASME Section VIII Div 1 / 2 or Appendix XI Flange Analysis
    7. Operating Pressure field is limited to 3000 psi
    8. Determine expected leakage rates 
    9. Load case combinations available to the Flange Analysis
    10. Library flange data does not seem to be correct
    11. No options are shown on the Flange / bolt Dimensions dropdown listing
    12. "Zero loads and moments": connection failed
    13. Add user defined Flange Pressure data
    14. Gasket Effective width does not match the ASME code value Flange Analysis module, why?
    15. Max Ratio = 0.00 and Notes = Fail
    16. "Consider Bolt Spacing Correction" option
    17. Calculate the Effective Dia
    18. Define Gasket thickness
    19. Flange calculation based on Gasket Seating note

    Warning messages:

    1. The Bolt spacing correction factor is greater than 1 because..
    2. The Gasket Material [SPIRAL-WOUND ALLOY WITH MINERAL FIBER FILL] is not available in the GasketMaterials Table.
    3. The required information is missing for this Flange analysis 

    See Also

    Modules (i.e. Flange, Hanger, Rotating Equip, TTA)

    Bentley AutoPIPE

    • leakage
    • AutoPIPE
    • Flange Analysis
    • Module
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    • Mike Dattilio Created by Bentley Colleague Mike Dattilio
    • When: Thu, Jul 18 2013 12:38 PM
    • Mike Dattilio Last revision by Bentley Colleague Mike Dattilio
    • When: Fri, Jan 13 2023 1:25 PM
    • Revisions: 61
    • Comments: 0
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