What is BentleyTSG? Bentley Technical Support Group (TSG) is dedicated to assisting our SELECT subscribers with technical problems encountered in Bentley applications. Technical problems include defects in the software, user errors, enhancement requests, and general problems associated with using Bentley’s software. TSG, however, is not responsible for training users on the proper use of our software. Most training issues ("How do I …") can be resolved by reading the Help files available with each application and through tutorials provided with the software. Our analysts are technically minded and reserved primarily for users who have production issues because of problems with the software or user inflicted errors. It would be detrimental to our users if our limited resources spent their time training users on how to use the software. Bentley has a Professional Services group who are dedicated to providing professional consulting and training. If you are interested in receiving formal training on any Bentley application, login to SELECT services Online http://www.bentley.com/en-US/training/products/ or contact your Account Manager In addition, due to liability and lawsuit issues, Bentley TSG, cannot assist you in design decisions (ex. how to fix over stress, what piping code should be used, etc..) or construction details established by individual clients, engineering firms, project documentation, and/or code specific documentation. What to do when a problem has occurred or log an enhancement request? Use the following link here to access Bentley's Support Services : Participate in Bentley Communities Explore your learning resources Take advantage of the CONNECTION Center (i.e. Log / Track Service Request, Bentley Communities, Software Downloads, etc..) Note: user's log in is required. If there is a problem contact Bentley for web assistance. 1. Log a Service Request - instructions here Every problem / enhancement request with AutoPIPE should start by logging a Service Request from the CONNECTION Center . Each Service Request has a unique number associated to it to enable easy tracking of a reported issues/enhancements. When contacting Bentley, any analyst can refer to that number and have immediate access to all the account information and details on all communication between the user, analyst, and development team's responses. Users are encouraged to refrain from sending technical questions directly to Bentley Personnel because those people maybe out of the office and may not get to the communication for a considerable amount of time. By logging a Service request the next available analyst will see the new issue and act on it immediately. Once a Service Request has been logged, the designated user will receive an automated response, recommend replying to it with additional detailed information or files (attach all models, screen shots, etc. in one ZIP file), and CC any additional Bentley Personnel as required. This ensures that all email communications are correctly logged for future reference. Users are able to review the status on existing or completed service request by following the instructions here . 2. Provide Problem Details or Enhancement Request Details: When logging a service request provide ample details to clearly present the error / enhancement: What version of AutoPIPE are you using (Help> About> 8 digit number) What exactly is the problem / error / enhancement Submit a step-by-step procedure to reproduce the issue with the related Node number. If having a problem entering data into a dialog screen, must have exact steps of sequence with which data was entered and exactly what occurred as a result. Note: The development team cannot fix / investigate an issue that cannot be reproduced. Create highlighted screen shots as needed to clearly show the error / enhancement. Issues where AutoPIPE results are being challenged, In addition to a model's APC file (see AutoPIPE Help for details), please provide details calculations in MS Excel or Math CAD format for review by the Development team. The calculations should based on values documented in the output report. Again, provide clear details of your calculations and where exactly AutoPIPE appears to be incorrect. If quoting a section from a code, provide the code name, code year, section, and paragraph designation. Helpful to copy clip just the paragraph of concern to be included when sending your information for review. Issues that require the user's computer information, Please provide the computer's system information using the following: 1) Start> Programs> Accessories> System Tools> System Information. 2) After the program has been opened, select File> Save> save file 3) Send me a copy of systemname.NFO file for review. Also, perform the following: 1) Start DOS command, select Start> Run> type "cmd" 2) Type, cd .. until c:\> is shown 3) Type, c:\> Dir /s /o /ogne>systemname.txt 4) Send a copy of the systemname.txt for review Note: 1. You may need internal IT to provide user access when following the procedure above. 2. These files may be large and can be shrunk by adding it to a ZIP file. Issues where the program crashes: 1) Can a movie be recorded / or exact steps to Reproduce the crash in AutoPIPE. a. does this occur in all models or one specific model (send AutoPIPE APC file for review) 2) After the program crashes then open the Windows Start menu, and type the following in the text box at the bottom: Event Viewer 3) Select Event Viewer from the results list. 4) In the window that appears, expand Windows Logs on the left sidebar, and select Application Log. 5) After a few moments, a list should populate on the right. 6) Find the error listing with the same timestamp as the error that was just reproduced. 7) Note the faulting module name. See the attached screenshot for an example. Note: The faulting module will show what library was executing code when the crash occurred. In some cases, this information will provide a clue, especially if the module is provided by Bentley. Provide the text or a screenshot of the error listing. Some issues require further in depth review of event logs. In these cases create 4 log files for each category under Window logs: 1. Application, 2. Security, 3.Setup, 4. System > Open Event Viewer, Expand Windows Logs, Right Click "Application" > Select "Save All events as" , navigate to a folder location, name file "Application.EVTX" > Repeat for reaming 3 log files changing the filename to accordingly. > Add all files to a ZIP and send for review. Issues requiring some debugging: For special cases where the information above does not pin point the actual cause of the problem, recommend performing the following for those who has installed AutoPIPE which failed to start normally or terminated abnormally: " How to download and install debugging tool for windows ", install WinDbg. After WInDBG software has been Installed per the instructions above, perform the following: 1) Open WinDBG (Start > Programs > Debugging Tools for Windows > WinDBG). 2) Select "File > Open Executable". 3) For AutoPIPE select "autopipe.exe" or for AutoPIPE Vessel Select "prodia2.exe" ...from folder where program was installed and press Open button. 4) Press No if a message is given about saving information. 5) Press F5 2x. AutoPIPE will now run. 6) Use AutoPIPE as usual to create the error. 7) After the program crashes, stops working, or is closed, go to WinDBG program and Stop Debugging from menu: "Debug > Stop Debugging". 8) Copy / Paste the text log in a text file and send a copy of the DEBUG log to Bentley for review. 3. Send your AutoPIPE model for review: Starting with AutoPIPE v09.05.xx.xx and higher, there is a feature that gathers all the model files required and adds them into a single file with the file extension *.APC. This is the best ways of transporting a file between user, archiving, and sending for review by Bentley Analyst. Please see the following AutoPIPE help section: Help > Contents> Search Tab> enter "APC", press List Topics button, double click on the "Save Archive" topic from the list provided to see more information on how to create this file in your version of the program. Example: Using AutoPIPE CONNECT 10.01.00..08: a. Select File> Save As> Archive b. Provide a name for the file, press OK to continue c. Enable features for APC file on the following Dialog, press OK to continue. d. the APC file is now in the location specified in first step above. Note: If the APC file is too large, the file size can be significantly reduced by recreating another APC file and disable the Results check-box in the above image. If the APC file is still to large, again the file size can be significantly reduced by recreating 3rd APC file but this time disable both Results & Reports check-boxes as shown below: 4. Attach all files into a single ZIP file. To make it easier when sending an email and storing files, we recommend adding all files to a ZIP / RAR file(s) no larger than 20.0 megs. If your file is larger than 20.0 megs, please see the following options to upload your file to our FTP server. But, do not forget to send an email to the service request number logged with the name of the file upload. Otherwise, it will be lost. Please upload the file and send / reply with the file name. Option #1 - ftp site click here You can drag and drop the file onto our ftp site, then reply with the specific File Name. Please note, the ftp site is an open drop box, anyone can drop or paste files there but you cannot see the contents. Option # 2 – Share File click here This link provides instructions for using our Secure File Upload. Note: Enter "None" in "Forum thread URL" on the Sharefile page Option #3: If you want to use drop box or similar that's fine but send the download link back in a Bentley in your Service Request email thread. 5. Contact us by Phone: Corporate Headquarters 685 Stockton Drive Exton, PA 19341, United States 1-800-BENTLEY ( 1-800-236-8539 ) Outside the United States +1 610-458-5000 More local offices see Bentley Phone Queue listing for more details when calling See Also Bentley AutoPIPE Bentley Select Services Technical Support webpage:
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Wiki Page: z> Technical Support - AutoPIPE
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Forum Post: SIG Virtual Workshop: AutoPIPE - April 13, 2017
Join Bentley's Jessica Alegre online Thursday, April 13, at 1 p.m. EST for the next AutoPIPE Special Interest Group (SIG) workshop. Register today ! Don’t miss this AutoPIPE Special Interest Group (SIG) workshop which focuses on topics important to your success. You will: Hear the latest in AutoPIPE functionality Learn how to best apply AutoPIPE capabilities to your projects and workflows Connect with industry colleagues and Bentley experts AutoPIPE SIG one-hour, virtual workshops are structured to keep you informed, engaged, and working optimally. Attendance is complimentary.
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Wiki Page: 03. How to correctly model a reducer mounted to the branch of a Welded Tee in AutoPIPE?
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: How to correctly model a reducer mounted to the branch of a Welded Tee in AutoPIPE? Solution: Suggest using one of the following 3 methods: step #1: Starting from the branch of a Tee node point: Note: header pipe is 12" dia OD option #1: Step #2. Insert run to weld location between Tee and Reducer: From Catalog, 12" welded tee, branch length = Dimension "N" = 10.00" Step #3: Insert Reducer Step #4: Insert smaller pipe run to next location Done!!! Option #2: Step #2: Insert pipe from Tee Node point to outside surface of header pipe Step #3: Insert pipe from surface to weld location of reducer Step #4: Insert reducer Step #5: Insert smaller pipe run to next location Step #6: Select the pipe from Tee Node point to outside surface of header pipe (i.e. Step #2), Insert "Rigid Options Over Range", uncheck "Include Weight" option only Done!!! Option #3: Starting with the following piping arrangement, notice that distance between node points is the exact distance for a reducer (ex. see reducer dimensions above P = 8" ) DO NOT select run between existing node points or inserting a reducer who's length is the exact same distance between 2 node point. This is not good modeling practice. One cannot just convert a pipe run to a component at this time. Instead, Delete downstream node point (ex. B02). Then use Insert> Reducer> Length = 8" One may need to select the piping on the reducer's small side and " Modify> Pipe Properties Over Range " to select the correct pipe size. See Also Reducer Piping Components - Modeling Approach Bentley AutoPIPE
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Wiki Page: 24. "Graphic" Enhancements and Defects for AutoPIPE
Applies To Product(s): AutoPIPE Version(s): ALL; Environment: N/A Area: Original Author: Bentley Technical Support Group Date Logged & Current Version Oct. 2016 10.01.00.09 The following enhancements / defects have been logged for inclusion into a future version of AutoPIPE: Note: if an enhancement / defect has not been added to the program, log an Service request for it. The more requests logged per an item, the quicker the CAE development team will add / fix that feature in the program. TFS-E 686096: Allow user to customize quick key / hot key mapping for commands Description: Quick key / hot key are hard coded into the program, allow user to customize these command key strokes Corrected Version: TBD TFS-E 291131 : TTA - add feature to analyze a Steam filled pipeline Description: Display the weld type at components like valves and flanges when View Option Show User Sif and weld type is requested. Corrected Version: TBD See Also Enhancements Requests and Logged Defects Bentley AutoPIPE
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Forum Post: RE: Autopipe support displacement
Hello Sandip, I apologize on my part, as I do not understand where you had posted your model too. Please provide exact link to model location. Regards, Mike Dattilio Bentley Product Advantage Group Analyst AutoPIPE Product Line Bentley Systems, Inc. ===================================================
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Forum Post: RE: Support movement inspite of rigid defn
Hello Vishal, AutoPIPE appears to be working correctly. Based on the model you had sent (which does not match the above image reference), the results of support displacement per operating conditions are all 0.00 for Global Z (vertical) Axis, except for support B24 which is on a vertical pipe that is sliding axially through the support: Also note that the support loads are +ve for at node point B23, however see that the displacement is 0.00 in the vertical direction for those respective load cases. Remember that the animated displacement is an overly exaggerated depiction of the pipe movement. also, viewing the displacement from one angle may give the impression that the pipe is moving in a direction that is not entirely correct until the view is rotated to see clearly how the movement is occurring. You may prefer to turn on "Deflected Plot Preferences" see AutoPIPE help for details on this feature. Regards, Mike Dattilio Bentley Product Advantage Group Analyst AutoPIPE Product Line Bentley Systems, Inc. ===================================================
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Forum Post: RE: Doubts in viewing code stresses
Hello Vishal, Correct the floating interactive review dialog assumes that the user would only be interested in the MAX values for each category of code combinations and would not be interested in reviewing combinations that are below the MAX values. If you are interested in less than MAX values, please refer the the Results Grids (shown on the WIKI referenced above) or Output Report for complete details. Regards, Mike Dattilio Bentley Product Advantage Group Analyst AutoPIPE Product Line Bentley Systems, Inc. ===================================================
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Forum Post: RE: Node numbering direction
Hello Dipesh, To my knowledge, No the node numbers does not have any bearing on the results. the largest contributing factors are specific model settings (press, Temp, pipe properties, code selection, analysis sets, analysis settings, loads , etc... Again, naming a node B28 or F30 should not contribute to changes in analysis results. Regards, Mike Dattilio Bentley Product Advantage Group Analyst AutoPIPE Product Line Bentley Systems, Inc. ===================================================
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Forum Post: RE: Code Stress Result
Anthony, There are few known issue related to bends and SIF values in our older editions that have been fixed in newer versions of the application. Suggest that you open your model in the most recent version of the program, AutoPIPE CONNECT 11.00.00.22, and try to repeat the same issue as mentioned above. If issue NOT repeatable, than this current version has the fix applied. If issue IS repeatable, please log a Bentley Service Request and attach your AutoPIPE APC file for review clearly identifying what node point and load case this is occurring with. Regards, Mike Dattilio Bentley Product Advantage Group Analyst AutoPIPE Product Line Bentley Systems, Inc. ===================================================
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Wiki Page: 23. What is the value of ASCE 7 Wind load setting "Cf" when value is set to Automatic in an AutoPIPE model?
Applies To Product(s): AutoPIPE, Version(s): ALL Environment: N/A Area: Load Original Author: Bentley Technical Support Group Problem: What is the value of ASCE 7 Wind load setting "Cf" when value is set to Automatic in an AutoPIPE model? Solution: See model Input listing " Load Summary " sub report, search for " Load Case " to understand what value is used when Cf = Automatic: Open the Wind Profile dialog where CF is set to Automatic, place cursor in field and press keyboard F1 key. This will display AutoPIPE help on this feature. read this to fully understand this setting. AutoPIPE assumes moderately smooth piping and reference Tables 6-10 for "Chimneys, Tanks and Similar Structures" in the ASCE 7-98 code: See Also Modeling "Wind" - Load Case Bentley AutoPIPE TFS-109544
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Wiki Page: 09. Should the Wind Shape Factor Multiplier be 1 or 0.7 when using the ASCE wind specification type in AutoPIPE?
Applies To Product(s): AutoPIPE, Version(s): ALL Environment: N/A Area: Load Original Author: Bentley Technical Support Group Problem: Should the Wind Shape Factor Multiplier be 1 or 0.7 when using the ASCE wind specification type? Does ASCE wind specification type, force coefficient factor take the place of the wind shape factor multiplier? Is it "double dipping" by using 0.7 for the Wind Shape Factor Multiplier and 0.7 for the Force Coefficient when using the ASCE wind specification type? Solution: The intent of Wind shape factor multiplier on the 1st screen of the Wind load case dialog is to provide a uniform factor that is applied to ALL wind load cases. However, AutoPIPE provides another more flexible method of applying this factor to the individual wind load cases; ASCE refers to this shape factor as "Force Coefficient Cf" and the UBC refers to it as "Pressure Coefficient Cq". Using these coefficient values on the individual load case dialogs enables the user to create a more accurate wind load based on the objects shape by providing different values for different wind directions (i.e. W1: Cf or Cq.= .7 for global X wind direction but W2: Cf or Cq = .9 for global Z wind direction). Using both Factor and coefficient values would reduce the wind load by the product of both values, which is incorrect. Therefore, either the Wind shape factor is modified and the coefficients are set to 1 or the Wind shape factor is set to 1 and the coefficients are modified. See Also Modeling "Wind" - Load Case Bentley AutoPIPE
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Wiki Page: 05. How is the ground elevation determined for a Wind load case in an AutoPIPE model?
Applies To Product(s): AutoPIPE, Version(s): ALL Environment: N/A Area: Load Original Author: Bentley Technical Support Group Problem: How can the pipe movement be greater than the support gap setting for wind load combinations in AutoPIPE? Solution: AutoPIPE allows the user to create a piping system anywhere within the coordinate system constraints, BUT, how does the program know where the Ground level is unless you tell it! Ground level could be anywhere on the vertical axis: ex. -4000 mm, -125 ft, 0 ft, +30 ft, +86645mm, anywhere, etc…. Just identify vertical level where ground level exists, and anything below that vertical level is considered underground. Anything underground will have no wind applied. Example: Question: Given the following piping system, What value should be entered for "Ground elevation" on the Wind dialog? Answer: Do you agree that 10 feet is correct answer? Yes or No... If you had answered YES, you are WRONG. If you had answered "need more information" , you are CORRECT. The missing information would be the Vertical elevation of the elbow at the top of the vertical pipe. From the Point tab of the input grids, vertical axis = Y-axis, one can see that the Vertical coordinate at the elbow A210 = -225.460 Therefore the Ground elevation = -225.460 - 10 = -235.460 ft. Correct !!! Again, any piping above this elevation could have wind applied, but all piping below this elevation would not have any wind applied regardless of Wind / Segment settings. See Also Modeling "Wind" - Load Case Bentley AutoPIPE
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Wiki Page: 06. How to input a Wind profile using Wind Velocity instead of Wind Pressure in AutoPIPE?
Applies To Product(s): AutoPIPE, Version(s): ALL Environment: N/A Area: Load Original Author: Bentley Technical Support Group Problem: How can the pipe movement be greater than the support gap setting for wind load combinations in AutoPIPE? Solution: AutoPIPE does not accept velocity profile input at this time. AutoPIPE does show the pressure profile and how it is calculated in load summary of the input listing. ASCE 7 defines wind speed as the nominal design 3-second gust wind speed at 33 ft (10 m) above ground for Exposure C category. Note that Kz value is 1.0 at 33 ft. So Kz gives the velocity profile per ASCE-7. You may use a similar procedure, entering your own velocity profile, to compute the pressure profile in Excel and then input in AutoPIPE. Refer to ASCE-7 for actual tables or equations. See Also Modeling "Wind" - Load Case Bentley AutoPIPE
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Wiki Page: "Displacement Scale" setting in AutoPIPE
Comments, Questions, and Answers related to Tools>Model Options> Results> "Displacement Scale" setting in AutoPIPE: Item #1 Displacement Scale was found to be blank Why and how to fix? Answer Displacement Scale is a model specific setting. It appears that the model in question may have this value reset to 0. Enter in a value higher than 0.00. Item #2: What is the range for this setting? Answer: Open dialog where setting is found, and press keyboard F1 key to see help topic on this setting. See Also Tool> Model Options> Results - AutoPIPE Bentley AutoPIPE
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Wiki Page: 05. Thermal loading does not seem to be applied in the axial direction in AutoPIPE model, why?
Applies To Product(s): AutoPIPE, Version(s): All Environment: N/A Area: Settings Original Author: Bentley Technical Support Group Problem: In my simple model with an Rigid Anchor - Pipe - Rigid Anchor, with when a thermal load case is applied should expect high Code Stresses for Max Range at the anchors, however it appears that AutoPIPE's is not calculating the results correctly, why? Solution: Most of the time this is because of an AutoPIPE setting, see the following: For AutoPIPE V8i 09.06.01.xx and lower: See Tools> Model Options> Results> Include axial force, enable this check-box option (see online help for details about this setting). Results with this Setting Turned On: See Also "Code Compliance" sub-report using Results> Output Report Bentley AutoPIPE
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Wiki Page: "Use corroded thickness in all analyses" model options, edit settings for an AutoPIPE model
Applies To Product(s): AutoPIPE Version(s): ALL; Environment: N/A Area: Settings Original Author: Bentley Technical Support Group Date Logged & Current Version March. 2017 11.00.00.22 Problem: How does "Use corroded thickness in all analysis" on Edit Model options dialog different from "Use nominal thickness" on Results Model Options dialog? Solution: These two options are for different things. " Use corroded thickness in analysis " in Edit Options was meant for determining pipe stiffness matrix, like EA/L, 3EI/L3, etc. Usually the higher the pipe stiffness the more the moment and is conservative. After changing this setting. the model should be re-analyzed. " Use nominal thickness " in Result Options was meant in computing stresses. Once the moment is computed the stress is calculated as M/Znom or M/Zcor. Zcor will give higher stress. After changing this setting and re-analyze the system, notice that the moments have not change. The typical approach in most piping codes is to use nominal in analysis (Edit) and use corroded in stresses (Result) to give most conservative results. The result option is confusing often as there are different stresses, like hoop, expansion, sustained, occasional and some codes require corroded for some but not others. For this reason we have a table in the online help to show what happens for each code for different stress types. In v9.4 we will add a separate option for hoop stress. "Use nom thk for hoop". See AutoPIPE help for complete details on these settings. See Also Tools> Model Options> Edit settings Bentley AutoPIPE
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Wiki Page: "Options to Renumber" model option, edit settings in an AutoPIPE model
Applies To Product(s): AutoPIPE, Version(s): ALL Environment: N/A Area: Settings Original Author: Bentley Technical Support Group Problem: What options are available to renumber an AutoPIPE model? Solution: The following AutoPIPE commands can be used to renumber all or part of a model. 1. Tools > Model Options> Edit> a. Default point name format b. Default point name offset c. Replace all point names on renumber 2. Edit> Renumber> a. Segments b. All Points 3. Edit> Segment> Reorder Please read the AutoPIPE online help to understand how to use these options in renumbering a model. Note: There is one drastic process to renumber and reorder segments automatically, but is only used as a last resort and comes with a WARNING Warning, after performing the following procedure it is highly advisable to completely review the entire model and all program settings afterwards!!!. A. Open the file to be renumbered in AutoPIPE. B. With the model opened, select File> Save-as> AutoPIPE Batch (*.NTL), save the file to a new name C. Open the new *.NTL create in AutoPIPE. This process will write the entire model using the NTL cards and format, previous node numbers and segment names are not saved during this process. However, any setting could be changed to a default setting when the NTL file is reopened by the program. Hence the major emphases, on reviewing all model settings, piping components, etc.. when the model is reopened by AutoPIPE See Also Tools> Model Options> Edit settings Bentley AutoPIPE
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Wiki Page: "Distance L/D from flange/valve to bend" model option, edit settings in an AutoPIPE model
Item #1: Can the "Distance L/D from flange/valve to bend" setting be turned OFF in an AutoPIPE model? See Also Tools> Model Options> Edit settings Bentley AutoPIPE
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Wiki Page: 01. Can the "Distance L/D from flange/valve to bend" setting be turned OFF in an AutoPIPE model?
Applies To Product(s): AutoPIPE Version(s): ALL Environment: N/A Area: Settings Original Author: Bentley Technical Support Group Date Logged & Current Version July 2015 09.06.02.06 Problem: Can the "Distance L/D from flange/valve to bend" setting be turned OFF in an AutoPIPE model? Solution: No. This setting cannot be turned on an off. From the AutoPIPE help: Enter the (L/D) value to be used in determining the distance the program will search for valves or flanges near bend points (near or far). The smallest number to be used is 0.00, and therefore will account for any flange / valve directly on the bend's Near or Far points. However, if the flange / valve was moved a very short distance away then it would be beyond the of L/d ratio setting specified and not consider it in the SIF calculation. See Also "Distance L/D from flange/valve to bend" model option Bentley AutoPIPE
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Wiki Page: "Include Bourdon rotational effect" model option, edit settings in an AutoPIPE model
Applies To Product(s): AutoPIPE, Version(s): ALL Environment: N/A Area: Modeling Original Author: Bentley Technical Support Group Problem: What does the following Tools> Model Options> Edit> "Include Bourdon rotational effect" do when enabled ? How is Bourdon effect implemented in AutoPIPE software? does it use the Flexibility Factors and Stress Intensification Factors provided by Codes? Solution: As mentioned in the online help: This option allows for the rotational effect at a bend due to pressure to be included in the pressure extension analysis cases (P1 to P100). When pressure is admitted to a bend, the bend tends to elongate and straighten. This is known as the "Bourdon" effect. The elongation effect is included in the pressure extension analysis cases (P1 to P100). Pressure extension analysis cases (P1 to P100) include the extension of both bends and straight pipes as well, but the Bourdon Rotational effect only applies to bends. Note: The inclusion of pressure extension analysis cases (P1 to P100) do not affect the structural stiffness matrix, and hence, has no affect on other static or dynamic analysis cases. Note: Pressure stiffening of bends, which tends to increase the stiffness of the bend and decrease the flexibility factor and SIF of the bend, can be applied with or without pressure extension analysis cases (P1 to P100). The two effects are completely independent. Furthermore, when "Include Bourdon rotational effect" check-box is checked ON it changes the stiffness matrix for bend elements. See Also Tools> Model Options> Edit settings Bentley AutoPIPE
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