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AutoPIPE Wiki Pipe and Vessel Stress Analysis - Wiki
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    • All tags
    • Calculation
    • AutoPIPE
    • 09.03.00.08
    • allowable
    • allowable stress
    • ASME
    • B31.3
    • B31.4
    • B31.8
    • bend
    • Code Compliance
    • critical
    • defect
    • DNV
    • En13480
    • Hoop
    • ISO 14692
    • Known Issues
    • NC
    • ND
    • Nuclear
    • Piping Code
    • Report
    • results
    • SIF
    • stress
    • Von Mises
    • 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
    • 02. DNV 2012 references a new definition of bending, but AutoPIPE help is different

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Version(s): ALL; Area: Calculations Date Logged & Current Version April. 2014 09.06.00.15 Problem: In the AutoPIPE on line manual (help/contents/code/DNV 2012/ASD) there are references…
      • over 3 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 03. ASD results are lower than the hoop stress results

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Version(s): ALL; Area: Calculation Date Logged & Current Version April. 2014 09.06.00.15 Problem: AutoPIPE's (automatic) calculation of the ASD is lower than the hoop stress and…
      • over 3 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 05. Results for DNV code combinations Collapse and Prop Buck are 0.00 or very small when using AutoPIPE

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Version(s): ALL; Area: Calculations Date Logged & Current Version April. 2014 09.06.00.15 Problem: The results for DNV code combinations Collapse and Prop Buck are 0.00 or very…
      • over 3 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 08. Explain Load Controlled Buckling check “stress value” and "allowable value” in AutoPIPE's output report

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Version(s): ALL; Area: Report Date Logged & Current Version April. 2014 09.06.00.19 Problem: Regarding the LCC (Load Controlled condition) check according to DNV 2012 (section…
      • over 3 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 05. How are Actual OD, Corrosion Allow, and Mill tol. used in AutoPIPE's analysis calculations?

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Version(s): ALL; Area: Calculations Date Logged & Current Version Jan 2020 12.02.00.14 Problem: How are the pipe properties (ex.Actual OD, Corrosion Allow, Mill tol., etc..) used…
      • over 3 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 19. Bending Stress reported by AutoPIPE is different from hand calculated values, why?

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Version(s): ALL; Area: Code Stress Date Logged & Current Version Dec 2019 12.02.00.14 Problem: When plugging in the outputted values for in and out of plane bending moments, stress…
      • over 3 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 03. How is the automatic bend radius (ie. Short, Long, 3D, 5D) calculated in AutoPIPE?

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Version(s): ALL; Area: Input listing, Bend Date Logged & Current Version Nov 2019 12.02.00.14 Problem: How does AutoPIPE calculate the Short, Long, 3D, and 5D bend radius for…
      • over 3 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 18. Would code stress results be the same regardless of which piping code was used in AutoPIPE?

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Version(s): ALL; Area: Results Date Logged & Current Version May 2019 12.01.00.10 Problem: Would code stress results be the same regardless of which piping code was used in AutoPIPE…
      • over 4 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 08. How does AutoPIPE calculate ASME B31.1 Hoop stress?

      Mike Dattilio
      Mike Dattilio
      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…
      • over 4 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 06. Does AutoPIPE calculate the required pipe wall thickness?

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Version(s): ALL; Area: Calculation Date Logged & Current Version April 2019 12.00.00.14 Problem: Does AutoPIPE calculate the required pipe wall thickness? Solution: At this…
      • over 3 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 02. How does AutoPIPE calculate the weight of a typical pipe fittings (i.e. Tee, elbow, reducer, etc..)?

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Version(s): ALL; Environment: N/A Area: Modeling Original Author: Bentley Technical Support Group Date Logged & Current Version Nov. 2016 10.01.00.09 Problem: …
      • over 5 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 07. How are the ASME B31.3 longitudinal pressure stress calculated in AutoPIPE?

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Version(s): V8i, CONNECT; Area: Calculations Original Author: Bentley Technical Support Group Date Logged & Current Version Oct. 2015 10.00.00.10 Problem…
      • over 5 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 02. How to find out what SIF does AutoPIPE use for stress calculations in each point, for example in tees using ASME ND 1992+1993 addenda?

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Version(s): 2004, XM, V8i Area: Analysis Original Author: Bentley Technical Support Group Date Logged & Current Version Jan 2015 09.06.01.10 Problem…
      • over 4 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 03. Can you please explain what is zero moment and its involvement in ASME ND equation 10 code stress combination for thermal case?

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Version(s): 2004, XM, V8i Area: Analsyis Original Author: Bentley Technical Support Group Date Logged & Current Version Jan 2015 09.06.01.10 Problem…
      • over 4 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 04. Where should then Non-repeated Anchor Movement (e.g. Building Settlement) be accounted for if not in ASME ND Equation 10a in AutoPIPE?

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Version(s): 2004, XM, V8i Area: Analysis Original Author: Bentley Technical Support Group Date Logged & Current Version Jan 2015 09.06.01.10 Problem…
      • over 4 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 05. How to define building settlement for a Nuclear codes?

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Version(s): ALL Area: Modeling Original Author: Bentley Technical Support Group Date Logged & Current Version Jan 2015 09.06.01.10 Problem: How to…
      • over 4 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 06. Why does the calculated allowable for "ASME ND (2007) PRE-VERIFICATION STRESS REPORT", Eq 8, Load case = GR, not match the hand calculated value in AutoPIPE?

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Version(s): 2004, XM, V8i Area: analysis Original Author: Bentley Technical Support Group Date Logged & Current Version Jan 2015 09.06.01.10 Problem…
      • over 4 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 03. Calculation of fa (allowable expansion stress range) for austenictic steel 1.4301 X5CrNi18-10 is significant difference between hand calculation and AutoPIPE Results, WHY?

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Version(s): 2004, XM, V8i Area: calculations Original Author: Bentley Technical Support Group Date Logged & Current Version May 2015 09.06.02.06 Problem…
      • over 3 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 03. Why are the HOOP stress results different throughout the AutoPIPE model?

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Version(s): All Area: Report Original Author: Bentley Technical Support Group Date Logged & Current Version May 2015 09.06.02.06 Problem: Why are…
      • over 4 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • "Code Compliance" sub-report using Results> Output Report in AutoPIPE

      Mike Dattilio
      Mike Dattilio
      Comments, Questions, and Answers: Note: see " Piping Code Calculations - AutoPIPE " wiki for more Code specific calculations and reporting errors Item #1: What is the meaning of: [xx%] [TR] w/sus. load margin Item #2: Why are Code stress results…
      • over 1 year ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 06. What value of Bend radius is AutoPIPE using when calculating the SIF of a 3/4" NPS, when radius = short, Long, 3D, and 5D ?

      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 July 2015 09.06.02.06 Problem…
      • over 5 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 05. How to calculate AutoPIPE's En13480 calculation for pressure extension stress

      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 July 2015 09.06.02.06 Problem…
      • over 3 years ago
      • AutoPIPE
      • AutoPIPE Wiki
    • 02. For ASME B31.4, why are the fields "Use nominal thickness" and "Use nom. Thk. for Hoop" unchecked in AutoPIPE V8i 09.06.00.15?

      Mike Dattilio
      Mike Dattilio
      Applies To Product(s): AutoPIPE Version(s): V8i Area: Calculations Original Author: Bentley Technical Support Group Date Logged & Current Version Aug. 2015 09.06.02.06 Problem: …
      • over 5 years ago
      • AutoPIPE
      • AutoPIPE Wiki
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