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AutoPIPE Wiki Pipe and Vessel Stress Analysis - Wiki
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    • Calculation
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    • allowable stress
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    • 04. How to calculate the tensile stress in bolts of an AutoPIPE Vessel model?

      Tanaji Gaikwad
      Tanaji Gaikwad
      Applies To Product(s): AutoPIPE Vessel Version(s): ALL Area: Modeling Date Logged & Current Version June 2018 40.06.00.07 Problem: How to calculate the tensile stress in bolts of an AutoPIPE Vessel model? …
      • 1 month ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 01. Does the calculation of a body flange according to ASME VIII, div 1, consider a rigidity criterion in an AutoPIPE Vessel model?

      Tanaji Gaikwad
      Tanaji Gaikwad
      Applies To Product(s): AutoPIPE Vessel Version(s): ALL Area: Report Date Logged & Current Version June 2018 40.06.00.07 Problem: Does the calculation of a body flange according to ASME VIII, div 1, consider…
      • 1 month ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 02. How to check for bolt load calculations for longitudinal saddle load generated during bundle pullout?

      Tanaji Gaikwad
      Tanaji Gaikwad
      Applies To Product(s): AutoPIPE Vessel Version(s): ALL Area: Calculations Date Logged & Current Version Oct 2018 40.07.00.007 Problem: How to check for bolt load calculations for longitudinal saddle load generated…
      • 1 month ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 01. What is the formula used for hydro-test pressure calculations per CODAP Div. 1 used for Shell and Tube Heat Exchangers in AutoPIPE Vessel?

      Tanaji Gaikwad
      Tanaji Gaikwad
      Applies To Product(s): AutoPIPE Vessel Version(s): ALL Area: Calculations Date Logged & Current Version Sept. 2017 40.04.00.08 Problem: Formula for calculation of hydro-test pressure as per CODAP Div.1 is: …
      • 1 month ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 10. Why are the ASME 2019 - appendix A-2 calculation for Tubesheet with tubes expanded + seal welded not performed?

      JamieP
      JamieP
      Applies To Product(s): AutoPIPE Vessel Version(s): ALL Area: Report Date Logged & Current Version July 2020 41.05.00.008 Problem: When making calculations of a tubesheet with tubes expanded + seal welded, the…
      • over 3 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 22. What units are used for and how is the Bend Radius calculated when importing a PCF file into AutoPIPE?

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Version(s): ALL; Area: Import Date Logged & Current Version May 2020 12.03.00.17 Problem: What units are used for and how is the Bend Radius calculated when importing a PCF file…
      • over 3 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 04. En13480 hoop stress appears to incorrect per code equation in AutoPIPE

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Version(s): 2004, XM, V8i Area: Report Original Author: Bentley Technical Support Group Date Logged & Current Version July 2015 09.06.02.06 Problem…
      • over 3 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 09. How is the Time Independent Design Stress, f, calculated according to EN 13480-2017 in AutoPIPE for Austenitic Steels (A > 35%)?

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Version(s): ALL; Area: Date Logged & Current Version April 2020 12.03.00.17 Problem: How are is the Time Independent Design Stress, f, calculated according to EN 13480-2017 in…
      • over 2 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 08. Why are the results for Creep Rupt = 0.00, Blank, or not printed in the output report for En13480 piping code in AutoPIPE?

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Version(s): ALL; Area: Calculation Date Logged & Current Version April. 2018 11.03.00.08 Problem: Why are the results for Creep Rupt = 0.00, Blank, or not printed in the output…
      • over 3 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 07. In EN13480, is there a feature to choose a damping ratio dependent on the particular frequency in AutoPIPE?

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Version(s): 2004, XM, V8i, CONNECT; Area: Analysis Original Author: Bentley Technical Support Group Date Logged & Current Version June. 2016 10.01.00.09 …
      • over 3 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 25. How are the seismic load is calculated in AutoPIPE Vessel?

      JamieP
      JamieP
      Applies To Product(s): AutoPIPE Vessel Version(s): ALL Area: REport Date Logged & Current Version April 2020 41.04.00.013 Problem: How are the seismic load is calculated in AutoPIPE Vessel? Solution: The…
      • over 3 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • Q. ANSI Check Flange Loading Calculations, for some load cased Operating pressure appears to not be added to Equivalent pressure in AutoPIPE, why?

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Version(s): ALL; Area: Date Logged & Current Version April 2020 12.03.00.17 Problem: ANSI Check Effective flange pressure equals P operating plus P eq. For a number of load cases…
      • 8 months ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 01. How to calculate the Thermal Expansion Coefficient in AutoPIPE?

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Version(s): ALL; Area: Properties Date Logged & Current Version March 2020 12.02.00.14 Problem: AutoPIPE thermal expansion is measured in " In/100 ft ". However most material…
      • over 3 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 07 How does AutoPIPE Nozzle determine values of Kc, Cc, KL and CL corresponding to values of gamma and beta (B1/B2 and B2/B1)?

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Nozzle Version(s): ALL; Area: Results Date Logged & Current Version Feb 2020 08.11.08.35 Problem: Questions about determine values of Kc, Cc, KL and CL 1 : How does the program…
      • over 2 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 06. How to calculate ro, RM, and T for Semi elliptical 2:1 shell in AutoPIPE Nozzle?

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Nozzle Version(s): ALL; Area: Results Date Logged & Current Version Feb 2020 08.11.08.35 Problem: How to calculate ro, RM, t for Semi elliptical 2:1 shell in AutoPIPE Nozzle?…
      • over 2 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 01. How to calculate B31.8 -2003 code allowable of per code equation:

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Version(s): 2004, XM, V8i Area: Calculation Original Author: Bentley Technical Support Group Date Logged & Current Version Jan 2015 09.06.01.10 Problem…
      • over 1 year ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 02. How to calculate the combined stress for a node point, equation used, and individual values being applied in the AutoPIPE equation?

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Version(s): 2004, XM, V8i Area: Original Author: Bentley Technical Support Group Date Logged & Current Version Jan 2015 09.06.01.10 Problem: Exactly…
      • over 3 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 03. ASME B31.8, the hoop stress uses the D/t ratio to decide which formula to use, thin or thick, what is AutoPIPE doing?

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Version(s): 2004, XM, V8i Area: Original Author: Bentley Technical Support Group Date Logged & Current Version Jan 2015 09.06.01.10 Problem: The…
      • over 3 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 07. How can I set the RESTRAINED pipe option for B31.8 2007 onshore / underground piping

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Version(s): 2004, XM, V8i Area: Calculation Original Author: Bentley Technical Support Group Date Logged & Current Version Jan 2015 09.06.01.10 Problem…
      • over 3 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 05. ASME B31.8, AutoPIPE does not seem to consider the bending stresses in the pipe due to large diameter elastic bends ( 1200 m). it only reports the stresses due to pressure , temperature and gravity?

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Version(s): 2004, XM, V8i Area: Calculation Original Author: Bentley Technical Support Group Date Logged & Current Version Jan 2015 09.06.01.10 Problem…
      • over 3 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 04. Using ASME B31.8 2012-2016, how is the hoop stress being calculated in AutoPIPE?

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Version(s): 2004, XM, V8i Area: Calculation Original Author: Bentley Technical Support Group Date Logged & Current Version Jan 2015 09.06.01.10 Problem…
      • over 3 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • RCC-M Piping Code Calculation Issues in AutoPIPE

      Mike Dattilio
      Mike Dattilio
      Note: Please see the following AutoPIPE help section: Help > Contents> Contents Tab> Reference Information> Code Compliance Calculations> select a piping code to see the calculations performed by AutoPIPE. Comments, Questions, and Answers about DNV…
      • over 3 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 01. Hoop Stress Allowable is 0.00 (zero) for a piping system analyzed in AutoPIPE per En 13480, why?

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Version(s): ALL Area: Results Original Author: Bentley Technical Support Group Date Logged & Current Version Mar. 2015 09.06.01.11 Problem: Hoop…
      • over 3 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 02. SIF calculations at TEEs are all the same when analyzed per EN13480 -2012 piping code in AutoPIPE, why?

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Version(s): 2004, XM, V8i Area: Calculation Original Author: Bentley Technical Support Group Date Logged & Current Version Mar. 2015 09.06.01.11 Problem…
      • over 3 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 01. Why is Von Mises stress calculations different than automatically calculated ASD in AutoPIPE ?

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Version(s): ALL; Area: Calculations Date Logged & Current Version April. 2018 11.03.00.08 Problem: By calculating the Von Mises stress in a separate way, the result it is different…
      • over 3 years ago
      • AutoPIPE
      • AutoPIPE Wiki
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