• B31J SIFs causes E801-1: FATAL ERROR

    Jonathan Bernhardt
    Jonathan Bernhardt
    Hello, Ever since we started using B31J I've been getting E801-1 errors when trying to run the analysis. This has happened more than once unfortunately. I've read the Q&A about E801-1 and it doesn't seem to refer to this issue, other then mentioning…
    • 4 months ago
    • AutoPIPE
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  • Siphonic PVC pipe system

    Ivan Alonso Fonseca
    Ivan Alonso Fonseca
    Good afternoon We are making a stress analysis on a storm siphonic system with PVC 1120, and we found this article about modeling PVC on AutoPIPE: Model Plastic Pipe in AutoPIPE - PlantFLOW Files - AutoPIPE - Bentley Communities We think the simplest…
    • over 1 year ago
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  • B31.3 Appendix S S301

    heldersw
    heldersw
    Has anyone ever made the S301 example of B31.3 2020 appendix S in SI units? The axial force results are quite different from the results of the standard, however the horizontal displacements are correct. The examples provided by the autopipe software…
    • over 1 year ago
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  • Fluid Transients in AutoPIPE

    Brody Ford
    Brody Ford
    Hi all, it seems the fluid transient module in AutoPIPE works by calculating the differential pressure in each pipe leg and applying the resulting force in a single direction at the point which experiences the higher pressure first. If you're manually…
    • over 2 years ago
    • AutoPIPE
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  • How to design clamp support in vertical pipe?

    Rasel Sultan
    Rasel Sultan
    Hi Everyone, I have a query regarding a clamp support in vertical pipe. I am sharing a picture showing the support type. The clamp is sitting on the grating. I need expert suggestion on this kind of support. Thank you Rasel
    • Answered
    • over 3 years ago
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    • AutoPIPE Forum
  • B31.3 LATEST CODE COMPLIANCE (September 2019)

    Lionel Naude
    Lionel Naude
    It is September 2019. I understand that ASME B31.3:2018 was released some time ago? My version of Autopipe is still giving a Code compliance statement to the 2016 version of the above Code. As far as I can tell, this version of Autopipe Advanced is…
    • Answered
    • over 4 years ago
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  • Modelling Branch Connection - Modified 2-Point Method

    Sean Pellerin
    Sean Pellerin
    Hi, I am using the following approach to model a branch connection and was wondering if this is appropriate. A 45 deg lateral is shown in the diagram for clarity (all segments are in the XY-plane) but I am proposing to be able to use this for any…
    • Answered
    • over 4 years ago
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  • B31.3 2016 stress equations on tees are non-conservative?

    Lone Star Expat
    Lone Star Expat
    Saw this article that states the formulas for the bending stress in tee's can be non-conservative - does B31J need to used instead? Did the formulas change from 2014-2018? http://www.whatispiping.com/asme-b31-3-issue (pasted below) About Author…
    • over 4 years ago
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  • Fitting dimensions to use with ASME B31J?

    Matt Stewart
    Matt Stewart
    I'm looking for at least nominal values for welding tee crotch thickness and crotch radius, along with reducer alpha angle and flat length for use in calculating SIF's per ASME B31J. Does anyone have a reference that provides these values? I'm looking…
    • over 5 years ago
    • AutoPIPE
    • AutoPIPE Forum
  • How to put value"soil reaction coefficient" on soil properties?

    Yusuke Yamaguchi
    Yusuke Yamaguchi
    I'm beginner Autopipe. I am modeling underground pipeline and i wound like to input soil information but i don' know how to put "soil reaction coefficient". Additionaly,i also don't know what are k1,k2 and p1. Please let me know those problems.
    • over 5 years ago
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  • Allowable Stress Difference in Tee Connections

    Andrew Peterson
    Andrew Peterson
    Hello, I am working on a model in v11.2 with the AUTOPIPE library, B31.3 Process Piping Code, B313-16 Material, A269-TP316L Pipe Material, & wall thickness is 2 mm. When I run the code stresses in thermal expansion, I am getting different values for…
    • over 5 years ago
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  • B31.3 material stress allowables

    HVN
    HVN
    Im using AP v 11.02.00.10 for a pipe stress analysis. The analysis under consideration is a piping system designed to B31.3 2016. Im using the AUTODIN library (since I need to model EN 1092-1 flanges), and material lib B313-16. Piping material is SA312…
    • over 5 years ago
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  • Cumulative Damage

    KANN
    KANN
    How may the cumulative fatigue damage at each point in a piping system be calculated using AutoPIPE and B31.3 Equation 1d?
    • Answered
    • over 7 years ago
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  • Allowable stesses on NS materials

    Mark Upston
    Mark Upston
    "Karl Johan Watne" wrote: Since SuperDuplex ASTM A790 Grade S32750 is not part of the material library AUTOB313, I have added this as a NS material and entered the material properties. For some reason AutoPIPE reports different allowable stresses for…
    • Answered
    • over 14 years ago
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    • AutoPIPE Forum
  • S_h with two Temp Conditions

    Mark Upston
    Mark Upston
    "Steven Perry" wrote: I have noticed that AutoPIPE will apply to all occasional cases the lower strength/higher temperature S_h from B31.3 when two temperature cases are defined even when the occasional cases use the lower temperature as the base case…
    • Answered
    • over 14 years ago
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    • AutoPIPE Forum
  • SIF

    Mark Upston
    Mark Upston
    "khodayar" wrote: hello, in a gas project,we are dealing with large bore pipes.in many cases the ratio of D/t is greater than 100.so the B31.3 SIFs are not valid. first I want to know if Auto pipe is a suitable software to dealing with this large bore…
    • over 14 years ago
    • AutoPIPE
    • AutoPIPE Forum
  • Elevated Temperature Fluid Service & appendix V for B31.3 piping systems

    HVN
    HVN
    I was reviewing B31.3 para 302.2.4, which deals with the option to allow a piping system to undergo pressure and/or temperatures variations that are above the design pressure and design temperature. Most of the calculations involved need to be done by…
    • Answered
    • over 6 years ago
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    • AutoPIPE Forum
  • Incorporation of B31J-2017 into AutoPIPE

    HVN
    HVN
    Hi, when will the latest revision of B31J (the 2017 edition ) be included in AutoPIPE? As with the latest release, a 2015 draft version is included;
    • Answered
    • over 6 years ago
    • AutoPIPE
    • AutoPIPE Forum
  • Flange Analysis Glitch?

    Kevin Jones
    Kevin Jones
    I am performing a flange analysis on a piping system with a large number of flanges of multiple types (lapjoint, slip-on, etc.). I have entered all the data required, run the analysis but when I go back to review the results, data I have input has changed…
    • over 7 years ago
    • AutoPIPE
    • AutoPIPE Forum
  • Does AutoPIPE calculate the effective section modulus at tee junctions?

    Nick.90
    Nick.90
    According to B31.3 section 319.4.4.(c) in the flexibility calculations the bending stress at the branch of a tee is calculated using the effective section modulus. Does AutoPIPE automatically calculate the effective section modulus for all branches…
    • over 7 years ago
    • AutoPIPE
    • AutoPIPE Forum
  • B31.3 2014 - Include axial force option

    Shamrose Chaudhry
    Shamrose Chaudhry
    Since ASME B31.3 2012 Edition, stresses due to axial forces have been added to both Sustained and Displacement(Thermal) stresses formula's, does checking or unchecking this option change anything in the result?
    • over 7 years ago
    • AutoPIPE
    • AutoPIPE Forum
  • Extracting (or separating) steel model out of AutoPIPE V8i Select back to STAAD

    Christopher Foley
    Christopher Foley
    Hello all, I have a unique situation and wonder if the software has a solution. We have a linked AutoPIPE V8i Select / STAAD PRO file. Sometime after the STAAD steel model was integrated in to the AutoPIPE model, the original STAAD model was lost. Is…
    • over 9 years ago
    • AutoPIPE
    • AutoPIPE Forum
  • AutoPIPE

    John Whailin
    John Whailin
    Does AutoPIPE comply with the requirements of ASME B31.3 with regards to the crotch radius rx of tees, also the thickness of of the tee at the crotch radius Tc.
    • over 10 years ago
    • AutoPIPE
    • AutoPIPE Forum
  • Swagelok fittings in AutoPIPE

    dagnew
    dagnew
    Hi, I'm needing to analyze a piping system to B31.3 using AutoPIPE. Tubing and Swagelok fittings are extensively used; in many cases there are only short runs of pipe between fittings. Does anyone have any tips on how to model Swagelok fittings in…
    • over 12 years ago
    • AutoPIPE
    • AutoPIPE Forum
  • Bend forces in Autopipe

    Saurav Challani
    Saurav Challani
    Dear All, I am a University student, working with Autopipe for one of our project. I was asked one question during the project review that how does Autopipe calculates the bend forces (as we do not define the velocity or flow in the pipeline) ?? …
    • over 10 years ago
    • AutoPIPE
    • AutoPIPE Forum
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