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  • Q. Flange calculation based on Gasket Seating note and ASME III Appendix XI - 2010 using AutoPIPE.

    Applies To Product(s): AutoPIPE Version(s): ALL; Area: Date Logged & Current Version Jan 2023 12.08.04.009 Problem: How does the note on AutoPIPE flange report affect the calculation of Flange stresses. Example…

  • 02. How to calculate Von Mises category combinations allowable using AutoPIPE?

    Applies To Product(s): AutoPIPE Version(s): ALL; Area: Date Logged & Current Version Dec 2022 12.08.03.015 Problem: How to calculate Von Mises category combinations allowable using AutoPIPE? Solution: Open…

  • Hoop stress

    Hello, I have some questions regarding the hoop stress calculation by AutoPIPE. I've tried to calculate the hoop stress myself compared to AutoPIPE Result. The result will be shown below. The hoop stress is 33.16 MPa according to ASME B31.4 code…

  • 06. Results Summary combinations appear to be missing from AutoPIPE's output report, why?

    Applies To Product(s): AutoPIPE Version(s): ALL; Area: Date Logged & Current Version Juky 2022 12.08.01.010 Problem: In this scenario, there are six load com bination cases: 1. GR+Max 2. Amb to T1 3. Amb…

  • 09. How to calculate the Hoop stress and Hoop allowable for ASME B31.8?

    Applies To Product(s): AutoPIPE Version(s): ALL; Area: calculation Date Logged & Current Version July 2022 12.08.01.010 Problem: According to AutoPIPE help Stress Design pressure P = 6750psi Nominal outside…

  • Metal stress-strain curve for non-linear analysis

    Hello, I tried to find the metal stress-strain curve used for non-linear analysis on Autopipe help, but I couldn't. Can you please share the curve ? Thanks Arash

  • W97-213: Corroded thickness is required for sustained stress in B31.3... message in AutoPIPE

    Applies To Product(s): AutoPIPE, Version(s): 2004, XM, & V8i Environment: N/A Area: warning message Original Author: Bentley Technical Support Group Problem…

  • What does it mean for 'N' and 'F' signs indicated in 'point name' column, as well as negative and positive signs in 'face' column in the report

  • 01.h.02 - Detail explanation of the Code Compliance settings "Note" in the Analysis Summary section of AutoPIPE's output report

    Applies To Product(s): AutoPIPE Version(s): All Area: Report Original Author: Bentley Technical Support Group Date Logged & Current Version Feb. 2020 12.04.00.13 Problem: The following…

  • 03. Why note "No operating loads analyzed..." appears after the CODE COMPLIANCE setting in the Analysis summary report of AutoPIPE?

    Applies To Product(s): AutoPIPE Version(s): ALL; Area: Report Date Logged & Current Version Nov. 2020 12.04.00.13 Problem: Why note "No operating loads analyzed..." appears after the CODE COMPLIANCE setting…

  • 06i. How to model miss aligned pipe pulled back into original position using AutoPIPE?

    Applies To Product(s): AutoPIPE Version(s): ALL; Area: Modeling Date Logged & Current Version Sept 2020 12.04.00.13 Problem: Find out how much external force would be needed to realign pipe back into original…

  • Calculated allowable displacement stress included sustained load margin

    Why is not the calculated allowable displacement stress, amb. to T3, like this in my result? SA=f(1,25(Sc+Sh)-SL)=1(1,25(137,9+118,29)-9,76)=310 N/mm² (AutoPipe says 271,82N/mm²)

  • Ambient temperature/thermal stress range

    Hi, I have question about ambient temperature and thermal stress range. I have made the test, I set ambient temperature Amb = -100 deg and set operating temperature T1=+100 deg. I have thermal stress from Amb to T1 example 230 MPa. If I set the…

  • 08. How does AutoPIPE calculate ASME B31.1 Hoop stress?

    Applies To Product(s): AutoPIPE Version(s): ALL; Area: Date Logged & Current Version May 2019 12.01.00.09 Problem: How does AutoPIPE calculate ASME B31.1 Hoop stress? Solution: Please see the following AutoPIPE…

  • 08. How to calculate the Hydrotest Hoop stress and Allowable values in AutoPIPE?

    Applies To Product(s): AutoPIPE Version(s): ALL; Area: Results Date Logged & Current Version Oct. 2018 11.04.00.10 Problem: How to calculate the Hydrotest Hoop stress and Allowable in AutoPIPE? Give the…

  • 06. AutoPIPE FAQ Question 116: Why are membrane stresses from pipe support not included in AutoPIPE?

    Applies To Product(s): AutoPIPE Version(s): 2004, XM, V8i Area: Analysis Original Author: Bentley Technical Support Group Date Logged & Current Version June 2015 09.06.02.06 Problem…

  • Axial stresses

    "Bolarinwa" wrote: How can the axial stresses be accounted for/included and printed out with the output results? Looking at the attached file, what does the value under A01 F+ stand for taking the stress under A01 F- as the max displacement stress…

  • 2 semi anchor on one line

    "khodayar" wrote: hi, I have noticed that if we put 2 directional anchors(stop) on one straight line autopipe won't show any over stress between 2 dir. anchors!!! how come?? please advised.

  • Longitudinal stress

    "Bolarinwa" wrote: Hi, i was wondering... what formula those autopipe uses in calculating the longitudinal stress due to pressure, bending stress and the code stress? ad how are they evaluated at anchor points?

  • Result output

    "Bolarinwa" wrote: Q1: I know you can do that (ref: Re:Axial stresses), but the values of these axial stresses at each node of the pipe is not included in the results output (is there any way these values can be viewed? Should the axial force be considered…

  • RE: Stress relaxation in AutoPIPE

    Hello Joe, Typically a person would model the piping and support system in an as-built condition. Afterwards, various loads would have been applied to represent different operating conditions and then run an analysis to see how the piping arrangement…

  • 03. What are the maximum longitudinal stress results for General Pipe stress different from the DNV code calculations when using AutoPIPE?

    Applies To Product(s): AutoPIPE Version(s): ALL; Original Author: Bentley Technical Support Group Date Logged & Current Version Feb. 2017 11.00.00.22 Problem: Could you please explain why the maximum longitudinal…

  • "General Stress" sub-report using Results> Output Report in AutoPIPE

    Comments, Questions, and Answers about AutoPIPE's General Stress Output report : Item #1: Does AutoPIPE displays "Von Mises combined stress" as well as "Tresca combined stress" on the output report? Item #2: Are the stresses (Octahedral Shear Stress…

  • 04. How to find the axial stress at a section to be correlated with axial force in the pipe steel at the same cross section in AutoPIPE's General Stress output report?

    Applies To Product(s): AutoPIPE Version(s): ALL; Environment: N/A Area: Report Original Author: Bentley Technical Support Group Date Logged & Current Version March. 2017 11.00.00.22 Problem: …

  • 11. How to determine the actual stress at a node point after performing a modal analysis using AutoPIPE?

    Applies To Product(s): AutoPIPE Version(s): ALL; Environment: N/A Area: Report Original Author: Bentley Technical Support Group Date Logged & Current Version Jan. 2017 10.01.00.09 Problem: How…
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