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Caepipe Changelog

What's new in Caepipe 12.20

Apr 10, 2024
  • New feature is added to perform Random Vibrarion Analysis in CAEPIPE. This feature is available for Piping Code = NONE. Refer to the Section titled "Random Vibration" in CAEPIPE Technical Reference Manual as well as in CAEPIPE User's Manual for further details.
  • Following new piping codes are added. Refer to Piping Code Compliance section of CAEPIPE Code Compliance Manual for more details.
  • ASME NM.1 (2022)
  • ASME NM.1 (2022)
  • EN 13941-1:2019+A1:2021
  • New feature is added to find the section property from the first occurance of the succeeding elements or from the first occurance of the preceeding elements when the Flange Library dialog is not able to get section property from the current element to obtain the Flange Weight.
  • Support Load Summary results will show the displacements results for all types of supports.
  • Shape Factor input field in Wind dialog is applicable only for "Velocity vs Elevation". Hence, Shape Factor input field is disabled in the Wind dialog when the option "Pressure vs Elevation" is selected.
  • New feature is added to Enable or Disable Dynamic Zoom in Graphics Window while using mouse scroll button for Zoom. This option can be modified through CAEPIPE Main Frame > Preferences > Disable Dynamic Zoom.
  • New feature is added for translating and rotating the graphics in Graphics Window using a mouse. In Translation mode (Pan), use Mouse Middle Button Down and Drag in Horizontal or Vertical direction for Horizontal or Vertical Translations. Similarly, in Rotation mode (Turn), use Mouse Middle Button Down and Drag in Horizontal or Vertical direction for Rotation in Horizontal or Vertical plane.
  • New feature is added for transforming Limit Stop loads from Local Coordinate System (LCS) to Global Coordinate System (GCS). Refer to the Section titled "Support Loads" under Results Window in CAEPIPE User's Manual for further details.
  • MBF format is updated to be compatible with CAEPIPE Version 12.20. See Appendix A of CAEPIPE User's Manual for details.
  • CAEPIPE User's Manual, Technical Reference Manual, Code Compliance Manual and Verification Manual have been enhanced and updated to be in line with software version 12.20. These Manuals can be downloaded from the link www.sstusa.com/caepipe-docs.php.
  • Bug Correction: Auto-refinement of Branches was adding a small element at Branch SIF locations when it is a Skewed line upon every model save.
  • Bug Correction: Responding to "Save changes" dialog was not performing any action when the command "Analyze" was selected without saving the model.
  • Bug Correction: For Piping Code = NONE, in von Mises stress computation, CAEPIPE was using the In-plane and Out-of-plane SIFs corresponding to the "From" Node for the "To" Node also. This bug exists from CAEPIPE Versions 5.10 through 12.10. This bug would affect results only when the NONE code is selected and two different values for "User SIF" are entered for the two ends of a component.

New in Caepipe 12.10 (Dec 18, 2023)

  • Following new piping codes are added. Refer to Piping Code Compliance section of CAEPIPE Code Compliance Manual for more details.
  • RCC-M (2018) - DESIGN AND CONSTRUCTION RULES FOR MECHANICAL COMPONENTS OF PWR NUCLEAR ISLANDS
  • RCC-M (2020) - DESIGN AND CONSTRUCTION RULES FOR MECHANICAL COMPONENTS OF PWR NUCLEAR ISLANDS
  • RCC-M (2022) - DESIGN AND CONSTRUCTION RULES FOR MECHANICAL COMPONENTS OF PWR NUCLEAR ISLANDS
  • Following piping codes are updated. Refer to Piping Code Compliance section of CAEPIPE Code Compliance Manual for more details.
  • ASME B31.3 (2022)
  • ASME B31.5 (2022)
  • MATERIAL LIBRARIES: Material libraries for the following codes are added. Refer to Piping Code Compliance section of CAEPIPE Code Compliance Manual for more details.
  • ASME B31.3 (2022)
  • ASME B31.5 (2022)
  • For Process Piping ASME B31.3, the feature Show/Hide "Operating Stress for NDE" is modified to Show/Hide "Operating Stress for Impact Test Exemption" calculated in accordance with Para. 323.2.2 (b)(3) of ASME B31.3 (2022) code.
  • CAEPIPE will now use the current cursor position as the centre point of zoom when a model is zoomed dynamically using mouse scroll button.
  • In Rotation mode (Turn), Ctrl + Mouse Left Button Down and Drag in Horizonal or Vertical will now Rotate the model in the direction of rotation (cursor movement).
  • CAEPIPE User's Manual, Technical Reference Manual, Code Compliance Manual and Verification Manual have been enhanced and updated to be in line with software version 12.10. These Manuals can be downloaded from the link www.sstusa.com/caepipe-docs.php.
  • Bug Correction: Editing the existing Flange at a node was not showing the Bolt Circle Diameter input in the Flange Dialog.
  • Bug Correction: Merging of models that contain Revision Record was running into infinite loop.
  • Bug Correction: For Piping Code = None, a few options that are NOT applicable for None code are shown randomly in the dialog launched through Layout Window > Options > Analysis > Code.

New in Caepipe 12.00 (Aug 18, 2023)

  • Following new piping codes are added. Refer to Piping Code Compliance section of CAEPIPE Code Compliance Manual for more details.
  • ASME NM.1 (2020) - Thermoplastic Piping Systems
  • ASME NM.2 (2020) - Glass-Fiber-Reinforced Thermosetting-Resin Piping Systems (GRP/FRP)
  • ISO 14692-3 (2017) - Petroleum and Natural Gas Industries - Glass Reinforced Plastics (GRP/FRP) Piping
  • ASME B31.12 PL (2019) - Hydrogen Pipelines
  • ASME B31.1 (1977)
  • ASME B31.1 (1980)
  • Following piping codes are updated. Refer to Piping Code Compliance section of CAEPIPE Code Compliance Manual for more details.
  • ASME B31.1 (2022)
  • ASME B31.4 (2022)
  • ASME B31.8 (2022)
  • MATERIAL LIBRARIES: Material libraries for the following codes are added. Refer to Piping Code Compliance section of CAEPIPE Code Compliance Manual for more details.
  • ASME B31.1 (2022)
  • ASME B31.4 (2022)
  • ASME B31.8 (2022)
  • Allowable Pressure for Nonmetallic piping is now computed as per Chapter N-II of ASME B31.1 (2022) when the piping code selected for analysis is ASME B31.1 (2022).
  • INCREASED NUMBER OF SEISMIC g-LOADS: Number of Seismic g-Loads is increased to 3. These Seismic g's can be input through Layout window > Loads > Seismic 1, Seismic 2 and Seismic 3.
  • Two new columns are added in the Element forces results to show and print Allowable stresses and Stress ratios for Expansion and Occasional load cases for ASME Class 2, ASME Class 3, ASME B31.1 (1973), ASME B31.1 (1977), ASME B31.1 (1980) and RCC-M codes. In addition, CSV export of these new columns are available ONLY for ASME Class 2 and ASME Class 3 code years 1986 or later.
  • New feature is added to input Specified Displacements at Generic Support for
  • Thermal loads T1 through T10
  • Design Temperature
  • Static Seismic g's (1 through 3)
  • Wind loads (Wind 1 through Wind 4) and
  • Settlement load case
  • New feature is added to input Specified Displacements at Anchors and Nozzles for
  • Design Temperature
  • Static Seismic g's (2 through 3)
  • Wind loads (Wind 1 through Wind 4) and
  • New feature is added to define external Force for Design load case using "Force" data.
  • New feature is added to define external Force as part of Static Seismic 2 or Static Seismic 3 load cases using Force Data type.
  • New feature is added to show "Limit Stop" defined in Vertical direction as "Rest. Supp" (Resting Support) in Layout, Limit Stop Loads, Support Load Summary and Limit Stop Displacements. This will help in identifying/differentiating the "Resting Support" among other types of Limit Stops defined at a particular node.
  • Branch Connection Stresses are now computed for Wind 2, Wind 3 and Wind 4 load cases in addition to other Occasional load cases for all ASME Section III Class 2 and Class 3 codes.
  • Run and Branch Split factors required for Refinement / Auto-refinement of Branches for B31J can now be controlled through Main Frame > Preferences.
  • Refine Branches / Auto Refine Branches command will split elements ONLY when the element type is Pipe/Jpipe/Cut Pipe with one of its nodes is defined as Branch SIF.
  • New feature is added to include Comment/Description in Lug Evaluation, Flange Qualification and Nozzle Evaluation modules.
  • A new column in Material property is added to input Yield Strength (Sy) for piping code EN 13480-3. When input, CAEPIPE will use this Yield Strength (Sy) to compute allowable stress for Buried Piping as per EN 13480-6 (2017).
  • New feature is added to obtain Direction of Wind through the Current Element (CE) in the layout. For example, Wind direction normal to a skewed line can be obtained using "Shear y" or "Shear z" option.
  • It is now possible to edit ASCE/SEI or EN 1991-1-4 Wind data through Wind Dialog. This can be done by selecting the wind code from the Wind Dialog.
  • New feature is added to Export and Import FRP Material properties through MBF file.
  • Flange Equivalent Pressure calculation inside CAEPIPE (Flange Report in CAEPIPE Results) in accordance with Eq. 6.6.1-2 of EN 13480-3 (2020) is now updated to exclude Axial force when it is Compressive (-ve). In addition, a new field is added to input the Bolt Circle Diameter of Flange required in computing the Flange Equivalent Pressure.
  • Analysis option "Include friction in Dynamic analysis" is turned ON by default.
  • Hydrotest Stress evaluation is now added for ASME B31.1 (2022) and ASME NM.1 (2020). This Hydrotest Stress evaluation can be seen through CAEPIPE Results Window > Results > Results... > Sorted Stresses and CAEPIPE Results Window > Results > Results... > Code Compliance.
  • CAEPIPE User's Manual, Technical Reference Manual, Code Compliance Manual and Verification Manual have been enhanced and updated to be in line with software version 12.00. These Manuals can be downloaded from the link www.sstusa.com/caepipe-docs.php.
  • Bug Correction: Refine Branch / Auto Refine Branch command was NOT splitting the element when both nodes of the element are Branch Points with the end node of the element is defined with Branch SIF.
  • Bug Correction: When a model is defined with Limit Stops and Friction, then the total vertical load obtained by adding vertical loads from Sustained load case of all supports is not matching against the total weight of the system. This issue was happening at Random and not true for all models with Limit Stops and friction defined.
  • Bug Correction: Reducing the number of thermal loads from 3 to 2 without turning off the load cases corresponding to T3 and P3 was issuing Assertion failure.
  • Bug Correction: Flange Report was using the pressure input at P3 while computing the Flange Equivalent Pressure for Operating 4 through Operating 10 load cases.

New in Caepipe 11.02 (Feb 3, 2023)

  • Bug Correction: For Piping code = EN13941-1, Interpolation to determine Kq and Kc which are used to compute Transverse (Lateral) soil stiffness in Soil restraints is incorrectly performed.
  • Bug Correction: Sutained Stress component in Sustained + Expansion Stress equation (Equation 11) is computed higher than the actual Sustained Stress for ASME Class 2 (2015, 2017 & 2021) and ASME Class 3 (2017 & 2021). This bug exists only in CAEPIPE Versions 11.00 and 11.01.

New in Caepipe 11.01 (Dec 30, 2022)

  • New feature is added to Refine Branches only when the Branch Point is defined with Branch SIF.
  • New feature is added to Find and Replace "User SIF".
  • Bug Correction: Occasional Stresses are not computed properly for Multi-level Response Spectrum analysis with the option "Include missing mass correction" is turned ON.
  • Bug Correction: List dialog showing "Spectrum Levels" when no spectrum defined.
  • Bug Correction: List window for User SIF is not showing the column "Axial SIF" for Piping Codes ASME B31.1, ASME B31.3, ASME B31.12 & EN 13480-3 and column "Sust.It" for IGEM Code.

New in Caepipe 11.00 (Dec 2, 2022)

  • New feature is added to Export and Import direction cosines via mbf for Limit Stops with "Connected to" node defined. Refer to section titled "Limit Stop" in CAEPIPE Technical Reference Manual for details.
  • New feature is added to Import AFT Impulse Time function data into CAEPIPE Time functions. This feature can be accessed through CAEPIPE Layout Window > Misc... > Time Functions > File > Import AFT Time Function. In addition, stress layout from CAEPIPE can be exported to AFT Impulse via PCF file through CAEPIPE Layout window > File > Export to PCF.
  • New field "Tensile" (Tensile Strength) is added in Material Input as well as in Material Library for the applicable ASME B31.x codes. Accordingly, Material Library Export and Import features have been enhanced. Refer to Sections titled "Material" in CAEPIPE Technical Reference Manual and Sections titled "Import Material Library" and "Export Material Library" in CAEPIPE User's Manual for details.
  • For Piping code = ASME B31.1 (2020), as per Note 2 of para. 102.3.5 (b)(1), for materials with a minimum tensile strength of over 70 ksi (480 MPa), eqs. (1A) and (1B) are now calculated using Sc and Sh values no greater than 20 ksi (140 MPa). Compliance to this criterion is checked using the value entered under Tensile Strength field of CAEPIPE Material property input. Refer to Piping Code Compliance section of CAEPIPE Code Compliance Manual for further details.
  • New feature is added to "Refine Branches" automatically while saving the model when the Piping code selected for Analysis is ASME B31.1 (2020) / ASME B31.3 (2020) / ASME B31.9 (2020) / EN 13941-1 (2019). Refer to Section titled "Refine Branches" in CAEPIPE User's Manual.
  • Allowable pressure calculation for Bends have been revised for EN 13480-3 (2020). Refer to Piping Code Compliance section of CAEPIPE Code Compliance Manual for details.
  • New feature is added to validate the Reducer Input while saving the model when the Piping code selected for Analysis is EN 13941-1 (2019)
  • Bending Moments at each element's ends due to Wind load are now included in stress analysis. Hence, results for Wind loads computed for old CAEPIPE version models using this new version may differ from their earlier results.
  • Missing mass correction is now included for Multi-level Response Spectrum Analysis. Refer to CAEPIPE Technical Reference Manual for details.
  • In CAEPIPE Versions 10.50 and 10.51, Generic support was considered as an Anchor (by ignoring non-diagonal terms, i.e., coupling terms) while computing the influence matrix for multi-level response spectrum analysis. Starting Version 11.00, non-diagonal terms for Generic Support are also considered while computing the influence matrix.
  • New feature is added to show the maximum and minimum stress in the legend independent of their corresponding stress ratios in stress contour plot.
  • Number of Time Steps in forcing function is increased from 9999 to 99999 for Time History Analysis.
  • New feature is added to display the Local Coordinate System (LCS) for Limit Stops in Graphical Screen while in Limit Stop loads results (as it is shown for Guides).
  • CAEPIPE can now import neutral files generated from CAESAR II versions up to and including 12.00.
  • MBF format is updated to be compatible with CAEPIPE Version 11.00. See Appendix A of CAEPIPE User's Manual for details.
  • CAEPIPE Evaluation and CAEPIPE Review will now add their product name and version stamp in CAEPIPE printouts and graphics plots.
  • CAEPIPE Evaluation will now work only for 30 days from the day of its first launch.
  • Bug Correction: Increasing or Decreasing the symbol size while reviewing Results issuing Assertion failure.
  • Bug Correction: Find and Replace dialog is issuing a message "Find what and Replace with are Unset" while replacing "Data".
  • Bug Correction: Adding new support (restraint and snubber) in CAEPIPE model with Multi-level response spectrum defined was freezing the layout window.
  • Bug Correction: Cone angle input field for Reducer is hidden when the piping code selected for analysis is ASME B31.1 with B31J turned ON
  • CAEPIPE User's Manual, Technical Reference Manual, Code Compliance Manual and Verification Manual have been enhanced and updated to be in line with software version 11.00. These Manuals can be downloaded from the link www.sstusa.com/caepipe-docs.php.
  • Following new piping codes are added. Refer to Piping Code Compliance section of CAEPIPE Code Compliance Manual for more details:
  • EN 13941-1 (2019)
  • ASME B31.1 (1973)
  • Two (2) new Nuclear piping codes are added as given below. Refer to Piping Code Compliance section of CAEPIPE Code Compliance Manual for more details:
  • ASME Section III, NC - Class 2 (2021)
  • ASME Section III, ND - Class 3 (2021)
  • Following piping codes are updated. Refer to Piping Code Compliance section of CAEPIPE Code Compliance Manual for more details:
  • ASME B31.3 (2020)
  • ASME B31.5 (2019)
  • ASME B31.8 (2020)
  • ASME B31.9 (2020)
  • MATERIAL LIBRARIES: Material libraries for the following codes are added. Refer to Piping Code Compliance section of CAEPIPE Code Compliance Manual for more details:
  • ASME B31.3 (2020)
  • ASME B31.5 (2019)
  • ASME B31.8 (2020)
  • ASME B31.9 (2020)
  • ASME B31.1 (2020) - Non-metallic piping
  • EN 10216-2 (2013)

New in Caepipe 10.51 (Feb 8, 2022)

  • Bug Correction: For Piping code = EN 13480-3 (2020), Branch Pipe thickness (eb or eb,c) was used instead of Run Pipe thickness (en or ec) for un-corroded or corroded section while calculating the Section modulus for Branch as per Note k of Table H.3 of EN 13480-3 (2020). This, in turn, decreased the Branch Section modulus for branch pipe thinner than the run pipe. This reduced Branch Section modulus increased the branch stresses at Branch node. This bug exists in CAEPIPE Versions 10.40 and 10.50.
  • Bug Correction: Deflected shape of Bend, Mitre Bend and Jacket Bend not transferred properly to 3D Plant Design system when exported through Results Frame > File > Export to 3D Plant Design.
  • Bug Correction: Access violation while exporting the Jacketed Piping stress layout with Flange(s) located on Jacket Pipe or Jacket Bend to 3D Plant Design system through Layout Window > File > Export to 3D Plant Design.
  • Bug Correction: Importing MBF file with a large number of Anchors with Specified Displacements defined in Global Coordinate System (GCS) was randomly setting the Displacement type to Local Coordinate System (LCS) at a few Anchors.

New in Caepipe 10.50 (Jan 21, 2022)

  • o Canadian Piping code CSA Z662 is updated to CSA Z662 (2019). Refer to the Piping Code Compliance Section titled CSA Z662 (2019) in CAEPIPE Code Compliance Manual for details.
  • New feature is added to perform Multi-level Response Spectrum Analysis in CAEPIPE. Refer to CAEPIPE Technical Reference Manual for details.
  • Seismic Displacements at Anchors and Nozzles can be input for all Piping Codes. When input, CAEPIPE solves it as a separate internal load case, the results of which are then added absolutely to static seismic and response spectrum load case results.
  • Option to select Facing Sketch 1(c) or 1(d) as per ASME Section VIII Division 1 - Appendix 2 is now included in the Flange Qualification module. This module can be launched through Main Frame > New > Flange Qualification or Main Frame > Open > Flange Qualification files (*.flg).
  • Flange Equivalent Pressure calculation inside CAEPIPE (Flange Report in CAEPIPE Results) is now performed in accordance with Eq. 6.6.1-2 of EN 13480-3 (2020) when the Piping Code selected for Analysis is EN13480/BS 806/IGEM/Norwegian/RCC-M/CODETI/Stoomwezen/Swedish. For all other Piping Codes, Flange Equivalent Pressure is calculated in accordance with NC-3658.1 of ASME Section III Class 2 (2017). Refer to the section titled "Flange" in CAEPIPE Technical Reference Manual for details.
  • "Check bends" command available through Layout Window > Misc is updated to issue a warning message when the Bend Angle < 5 deg for Bends, Mitres and Jbends.
  • "Copy" command available through "Layout Window > Edit" can now remember elements copied for multiple paste by turning ON the option "Remember for multiple paste". Refer to the section titled "Copy" in CAEPIPE User's Manual for details.
  • "Paste" command available through "Layout Window > Edit" can now paste a group of elements including their data in the middle of a layout. Refer to the section titled "Paste" in CAEPIPE User's Manual for details.
  • CAEPIPE User's Manual, Technical Reference Manual, Code Compliance Manual and Verification Manual have been enhanced and updated to be in line with software version 10.50. Verification and Validation of Multi-level Response Spectrum Analysis by CAEPIPE have been performed against the USNRC Benchmark problems. These Manuals can be downloaded from the link www.sstusa.com/caepipe-docs.php.
  • New feature is added to define and import Limit Stop, Snubber and Skewed Restraint in local axis direction via MBF. Refer Appendix A in CAEPIPE User's Manual for details.
  • New feature is added to find and replace Level Tag for Supports through Layout window > Edit > Find and Replace.
  • New feature is added to change or assign Level Tag for Supports through Layout window > Edit > Change.
  • New feature is added to import Spectrum(s) and Spectrum Level(s) while Merging model with Spectrum(s) defined.
  • MBF format is updated to be compatible with CAEPIPE Version 10.50. See Appendix A of CAEPIPE User's Manual for details.
  • Bug Correction: For piping code = Z662 (2015), longitudinal stress (PD/4t) was getting added to Combined stress for buried piping.
  • Bug Correction: Spectrum values are not exported properly to CSV file through Spectrum List > File > Export.
  • Bug Correction: Wind code is exported as "NONE" instead of "0" when Wind profile is exported to MBF file. Hence, while importing the MBF file back, CAEPIPE was issuing an error message.

New in Caepipe 10.40 (Jun 15, 2021)

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  • Piping code EN 13480-3 (2017) is updated to EN 13480-3 (2017)/A2:2020. Refer to Piping Code Compliance section of CAEPIPE Code Compliance Manual for more details.
  • For Piping code = ASME B31.1 (2020), Forces and Moments for Sustained and Occasional loads are now combined as per para 104.8.4 (b) of ASME B31.1 (2020) for computing Occasional Stresses. Refer to Piping Code Compliance section titled ASME B31.1 (2020) in CAEPIPE Code Compliance Manual for more details.
  • Allowable nozzle loads calculation for nozzles to spherical and cylindrical shells as per European code EN 13445-3: 2009 is updated to EN 13445-3:2014/A8:2019. Refer to Section titled "Nozzle Evaluation" in CAEPIPE Technical Reference Manual and CAEPIPE Code Compliance Manual for details.
  • Improved Modal analysis algorithm for Eigenvalue (frequency) extraction. With this improvement, CAEPIPE can now extract much higher modes (Eigen vectors).
  • New feature is added to turn some wind loads ON and the remaining wind loads OFF for a portion of piping. This can be done by entering "Y(es)" or leaving it "Blank" respectively through Layout Window > Misc > Loads/Beam Loads > Wind Load 1/Wind Load 2/Wind Load 3/Wind Load 4.
  • New feature is added for the user to specify either the “Ground Level” or the “Depth of soil above pipe centre line" while modeling soil in Buried piping so that CAEPIPE will automatically calculate the soil stiffnesses in three directions internally at all buried piping nodes.
  • New feature is added to define "Connected Node" for Snubber.
  • Flange Equivalent Pressure routine is updated as per NC.3658.1 of ASME Section III Class 2 (2017). Refer to section titled "Flange" in CAEPIPE Technical Reference Manual for details.
  • New feature is added to show and print Valve Accelerations for Response Spectrum analysis including Maximum values in global directions. Valve Accelerations can be seen through Results Frame > Results > Accelerations > Mouse right click > Show Valve Accelerations. The same can be printed by selecting the option "Accelerations" from the print dialog.
  • New feature is added to show Pipe NS/Pipe OD in Flange List and Flange Report. This will be useful for editing flange data and post-processing of flange report.
  • "Connected Node" data is now output in TXT and CSV files for Skewed Restraint.
  • Setting the environmental variable "EXPORT_INCHES" to "YES" will now export and import moment units in “lb-in” via MBF in addition to exporting and importing length units in "inches" via MBF.
  • Another New feature is added for translating and rotating the graphics model in Graphics Window using a mouse.
  • In Translation mode, use:
  • Ctrl + Mouse Left Button Down and Drag in Horizontal or Vertical for Horizontal or Vertical Translation of Model.
  • In Rotation mode (Turn):
  • Ctrl + Mouse Left Button Down and Drag in Horizonal or Vertical for Rotation in Horizontal or Vertical plane.
  • Displacements results are hidden from "Support Load Summary" as adding “algebraically” displacements for Unsigned load cases such as Seismic load case with displacements from signed cases such as Operating load case is not suitable for models with non-linearities.
  • MBF format is updated to be compatible with CAEPIPE Version 10.40. See Appendix A of CAEPIPE User's Manual for details.
  • CAEPIPE User's Manual, Technical Reference Manual, Verification Manual and Code Compliance Manual have been enhanced and updated to be in line with software version 10.40. These Manuals can be downloaded from here.
  • Bug Correction: In-plane and Out-of-plane Moments at Branch Nodes are NOT transformed properly while computing Creep Stresses for Piping Code = EN 13480. This bug exists from CAEPIPE Versions 9.00 through 10.30.
  • Bug Correction: Access violation while exporting the Jacketted Piping stress layout with Guides located on Jacketted Piping to 3D Plant Design system through Layout Window > File > Export to 3D Plant Design.
  • Bug Correction: Type column is output as "Anchor" instead of "Nozzle" in Specified Displacements output for Nozzle in TEXT file format through File > Print > Print to file > Text File (*.txt).
  • Bug Correction: Structure Occupancy Category selected other than III in Wind-ASCE/SEI 7-16 dialog NOT saved in model file for ASCE/SEI 7-16 Wind parameters defined through Layout window > Misc > Wind - ASCE/SEI 7-16.
  • Bug Correction: For Piping Code = IGEM (2012), Local forces and moments screen was displaying the Ip, It and Is corresponding to Cyclic SCF for Sustained and Expansion load cases. This bug exists from CAEPIPE Version 10.10 through 10.30 but did not affect the stress calculations.

New in Caepipe 10.30 (Oct 28, 2020)

  • Piping cde ASME B31.1 (2018) is updated t ASME B31.1 (2020). Refer t Piping Cde Cmpliance chapter in CAEPIPE Cde Cmpliance Manual fr mre details.
  • Fr Piping Cde = B31.1, Settlement evaluatin as per ASME B31.1 (2020) is nw included in the Cde Cmpliance. Refer t Piping Cde Cmpliance chapter in CAEPIPE Cde Cmpliance Manual fr mre details.
  • New Material Library is added crrespnding t ASME B31.1 (2020).
  • New feature is added t cmpute design wind frces as per EN 1991-1-4 (2010). Refer t Sectins titled "Wind Lad - EN 1991-1-4 (2010)" frm CAEPIPE User's Manual and "EN 1991-1-4 (2010)" frm CAEPIPE Technical Reference and Cde Cmpliance Manuals fr details.
  • Static Seismic g's cmputatin is updated t ASCE/SEI 7-16 frm ASCE/EI 7-10. Refer t Sectins titled "Static Seismic Lad - ASCE/SEI 7-16" frm CAEPIPE User's Manual & CAEPIPE Technical Reference Manual and "Earthquake Lad - ASCE/SEI 7-16" frm CAEPIPE Cde Cmpliance Manual fr details.
  • Design Wind frce cmputatin is updated t ASCE/SEI 7-16 frm ASCE/EI 7-10. Refer t Sectins titled "Wind Lad - ASCE/SEI 7-16" frm CAEPIPE User's Manual, CAEPIPE Technical Reference Manual and CAEPIPE Cde Cmpliance Manuals fr details.
  • New feature is added t define external Frce as part f Static Seismic lad case in Frce Data type.
  • New feature added fr further autmatic discretizatin f straight pipe elements in buried piping using influence length calculated as per the guidelines prvided in ASME B31.1 (2018), Appendix VII. This can be perfrmed thrugh Layut Windw > Edit > Refine Ndal Mesh > Buried Piping.
  • New feature is added fr changing the Graphics Windw backgrund t "ff white" in additin t "Black" and "White". This can be perfrmed thrugh Graphics Windw > ptins > Backgrund.
  • New feature is added t Turn N r FF cntinuus rendering. This feature will wrk nly when the Layut Windw is Active. This feature can be Turned N r FF thrugh Main Frame > Preferences > General > Cntinuus Rendering while mdeling.
  • Flyview and highlight f current element/data is nw pssible while being in cntinuus rendering mde. Highlight RGB Clr can be defined thrugh Main Frame > Preferences > General > RGB.
  • New tggle icn is added in Graphics Windw t Shw / Hide Dts and Nde numbers.
  • Reset ptin in ASCE/SEI Wind dialg will nw delete all wind lad data that uses ASCE Wind data.
  • Fr Piping Cde = B31.1 (2020) and B31.3 (2018), a new feature is added t identify CrM materials using descriptin and apply Weld Strength Reductin Factrs as specified in Table 102.4.7-1 f B31.1(2020) and Table 302.3.5 f B31.3(2018). See Cde Cmpliance Manual fr details.
  • New iterative rutine added t cmpute the minimum cllapse pressure (pm) by increasing the value f ncyl frm 2 and abve fr External Pressure Design calculatin as per EN 13480-3 (2017) Chapter 9.
  • New feature is added t disable the ptin "First-level checks" frm Results Windw when Sustained (W+P) and/r Expansin (T1) lad cases are turned FF.
  • Fr Piping Cde = EN 13480, Yield stress value is nw cmputed as 1.5 x f (where f is allwable stress entered in CAEPIPE material input). This cmputed yield value is used in External Pressure design and in cmputing the Buried Piping allwable stress.
  • MBF frmat is updated t be cmpatible with CAEPIPE Versin 10.30. See Appendix A f CAEPIPE User's Manual fr details.
  • CAEPIPE User's Manual, Technical Reference Manual, Verificatin Manual and Cde Cmpliance Manual have been enhanced and updated t be in line with sftware versin 10.30. These Manuals can be dwnladed frm the link www.sstusa.cm/caepipe-dcs.php.
  • Bug Crrectin: Specific Gravity, Additinal Weight & Wind Lad values fr piping elements and Additinal Weight & Wind Lad values fr Beam Elements were nt displayed in the dialg "Select Lad" than can be launched thrugh Layut Windw > Muse Right Click n Lad clumn fr each Piping / Beam element rw > Select Lad.
  • Bug Crrectin: Cmmand "Refine Branches fr B31J" was lping endlessly when ne r mre f the cnnecting elements at Branch SIF have Slpe defined.
  • Bug Crrectin: While printing the External Pressure Design fr EN 13480-3 (2017) Chapter 9 results, the title was shwn as "Internal Pressure Design fr EN 13480-3 (2017) Chapter 9".
  • Bug Crrectin: Material Name fr Miter Bend was truncating t 4 characters when the number f characters defined was greater than 4.

New in Caepipe 7.80 (Sep 8, 2017)

  • Piping Code CODETI(2006) is updated to CODETI (2013). Refer Piping Code Compliance from CAEPIPE Code Compliance Manual for more details.
  • New ASME Section III, NC - Class 2 (2015) piping code is added. Refer Piping Code Compliance from CAEPIPE Code Compliance Manual for details.
  • New feature added to define Specified Rotations in Local Coordinate System (LCS) for Anchor.
  • New feature added to include Linear Thermal Expansion for Bellows. The Support loads and/or Displacements produced using earlier versions of CAEPIPE for models with bellows may differ when they are analyzed using CAEPIPE V7.80.
  • New feature added to check Branch Points not defined with Brach SIF. This can be performed through Layout window > Misc > Check Branch SIF.
  • New feature added to check and issue warning message when Compressor Shaft Axis is not in horizontal plane.
  • Soil restraints results now include "Soil Name" and "Soil Type".
  • New feature added to highlight Beam Section, Beam Load and Beam Material.
  • New feature added to plot color coded rendered 3D Graphics based on Specific Gravity defined. This feature helps in identifying different services used in different portions of a piping system. This can be performed by selecting the option "Color Graphics using Sp. Gr" by mouse right click on "List Loads" window while being in Color Graphics plot.
  • New feature added to increase or decrease font size using "Ctrl + Up" and "Ctrl + Down".
  • New feature added to issue warning message when Insulation Density is defined without defining the Insulation Thickness or vice versa.
  • New feature added to issue warning message when Lining Density is defined without defining Lining Thickness or vice versa.
  • New feature added to remember unit settings of Wind 1 for defining Wind 2, Wind 3 and Wind 4.
  • AISC Beam Library is now updated to include "J" and other missing properties. In addition, "Torsional Inertia" is changed to "Torsional Constant" in line with AISC Standard.
  • CAEPIPE User's Manual, Technical Reference Manual, Code Compliance Manual and Verification Manual have been enhanced and updated to be in line with software version 7.80. These Manuals can be downloaded from our website www.sstusa.com.
  • Bug correction: Stress values shown in legend of Color Coded Graphics were overlapping.
  • Bug correction: B1 Index for Miter Bend was not calculated properly for all earlier versions (1986, 1990 and 1992) of ASME Class 2 codes. This bug exists in all versions of CAEPIPE up to V7.70.
  • Bug correction: For Anchors defined using Global Stiffnesses and Local Displacements, the Support loads were not calculated properly. This bug exists in CAEPIPE Versions 6.70 through 7.70.
  • Bug correction: Specified Displacements for T3 through T10 were not printed in TXT and CSV file output. In addition, Specified Displacements for Seismic and Settlement cases were not printed properly in TXT and CSV file output.

New in Caepipe 7.1 (Sep 23, 2014)

  • UNDO: CAEPIPE can now perform an UNDO operation 1024 times (includes most user-input actions through Layout, List and Graphics windows).
  • REDO: CAEPIPE can now perform a REDO operation 1024 times (includes most user-input actions through Layout, List and Graphics windows).
  • New feature added to combine current PIPE/BEND element with previous PIPE element.
  • New feature added to split an element into multiple segments.
  • Maximum and Minimum values of Support Load Summary will not be highlighted / shown in RED when the User-allowables are not entered by the user.
  • Printing of Pipe Loads in text format is improved for 10 thermal loadings.
  • Bug Correction: Assertion failure while analyzing model with Beam Elements and with number of thermal loads greater than 3.
  • Bug Correction: Pressure and Temperature values were not printed properly with SI units selected in output when number of loads was greater than 3.
  • Bug Correction: Allowable pressure for flange was not stored properly in Flange detailed analysis module (Flange Stress Calculation as per ASME Section VIII Div. 1).
  • Bug Correction: Limit Stop header was not printed properly in csv format.

New in Caepipe 6.60 (May 30, 2012)

  • Following piping codes are updated. Refer Annexure-A of ReadMeSupplement_v660.pdf for more details.
  • New feature added to Copy and Paste rows (with Element (from Layout), Material, Section and Load properties). This can be performed through Edit->Copy and Edit->Paste or Ctrl+C and Ctrl+V. Copy and Paste command in 6.60 will also allow to copy multiple rows of layout. This can be performed through Layout Frame->Edit->Copy command. Multiple rows of Copy and Paste is valid only for Layout and NOT for Materials, Loads and Sections. Readme needs to be modified to include this point.
  • New feature added to define Forces and Moments as part of Sustained Load / Expansion Load (T1) using Force Dialog. Force and Moments can also be added to Expansion (T2) and Expansion (T3) in addition to W+P and (T1).
  • New feature added to Find and Replace Element / Data types. This can be performed through Edit->Find and Replace or using Ctrl+H.
  • New feature added to print element forces separated by element types in global coordinates.
  • Support Load Summary includes Global displacements at each support for load cases and combinations.
  • New feature added to show sustained displacements during hanger selection when hangers are pinned. This can be performed through Results->Displacements->Mouse right click->Show sust. disp. during hanger selection.
  • New Data type "Generic support" added in CAEPIPE to define support stiffnesses using 6x6 stiffness matrix.
  • Improved title description for graphical plot of Stresses, Stress Ratios and Deflected shapes.
  • Modified Supplement for EN 13480 (2009) is added in Annexure A of Readme_Supplement.
  • Bug Correction: Issues error message while importing CAESAR II Version 5.2 Neutral file into CAEPIPE with NODENAME block.
  • Bug Correction: Find Node dialog does not allow to enter more than 4 characters.
  • Bug Correction: When Piping Code = B31.4 (2009), in-plane SIF and out-of-plane SIF were set to 1.0 when element type is PIPE even with data type set as Branch SIF/Weld/User SIF/Threaded in CAEPIPE.

New in Caepipe 6.52 (May 30, 2012)

  • Piping code B31.3 updated to ASME B31.3 (2010). Refer Annexure-A of ReadMeSupplement_v652.pdf for more details.
  • Bug Correction: Access Violation occurred while importing CAESAR II Version 5.1 Neutral file into CAEPIPE.
  • Material Library Correction: In 2007 and 2010 versions of B31.1 material library, material type for CrMo materials (A335) was incorrectly set to AS instead of CS. This does not alter the pressure calculations results in 2007 edition of the code as the W (weld strength reduction factor) was introduced only in 2010. Reanalyze your models by re-importing the material from the supplied [updated] B311-2010.mat ONLY if they use A335 at high temperatures (> 800 deg. F).

New in Caepipe 6.51 (May 30, 2012)

  • Piping code B31.1 updated to ASME B31.1 (2010). Refer Annexure-A of ReadMeSupplement_v651.pdf for more details.
  • Bug Correction: Forces, moments and stresses for Bends were not calculated properly when "BOURDONP" environmental variable was set to include Bourdon effect as a sustained load.

New in Caepipe 6.50 (May 30, 2012)

  • New feature to "Import CAESAR II Neutral files" (.cii) is added. This can be performed through File->Import from Main window. Please see
  • Annexure A from Readme_Supplement for details.
  • New feature to "Import PipePak Neutral files" is added. This can be performed through File->Import from Main window.
  • Improved algorithm for refreshing the layout screen when an element is selected through the graphics window to avoid garbling of layout screen.
  • New feature added to check whether local x and y axes are perpendicular to each other for Elastic element.
  • Bug Correction: The direction vector entered as non-unit vector for local x and y axes were not normalized before printing global element forces for Elastic element.
  • NOTE For B31.3(2008) users: As per para 302.3.4, fm = maximum value of stress range factor; 1.2 for ferrous materials with specified minimum tensile strengths

New in Caepipe 6.41 (May 30, 2012)

  • Bug Correction: Spring Rate for Rod Hanger was not calculated correctly due to the change made in version 6.4 to fix the Rod Hanger Spring Rate printing / display problem.
  • Bug Correction: Access Violation occurred when user selected File->Export to 3D Plant Design->PDMS Geometry Macro through Layout Window.

New in Caepipe 6.40 (May 30, 2012)

  • Following piping codes are updated. Please see Annexure A from Readme_Supplement for details.
  • New piping code B31.9 (2004) for Building Services Piping added.
  • Upto version 6.30, CAEPIPE always reported the frequencies that were below the cut-off frequency. Starting version 6.40, CAEPIPE will always report frequencies upto the number of modes specified by the user or upto the first frequency above the cut-off frequency.
  • Material properties of B31.4 and B31.5 are updated in accordance with B31.4 (2009) and B31.5 (2006). The new material libraries are named as B314-2009.mat and B315-2006.mat respectively.
  • Default Insulation density for Calcium Silicate in CAEPIPE is modified to 15 lb./ft3 from 11 lb./ft3.
  • New feature to export the 3D piping model to CADMATIC as structural components (only graphics without attributes). This can be performed through File ->Export to 3D Plant Design from inside the Layout window.
  • In Hanger/User Hanger dialog, the field "Hanger above" is replaced with "Hanger below". This should be used to specify a Hanger connected below the pipe. Graphical symbol changes accordingly.
  • Bug Correction: Settlement was calculated (for applicable piping codes) even when the Settlement load case was not active.
  • Bug Correction: Loads on Guides in Local Coordinates were not output correctly when printed to a text file.
  • Bug Correction: Spring Rate for Rod Hanger was not displayed/printed properly in Hanger report when the Analysis option "Solve Thermal Case" was selected.
  • Bug Correction: Merge model command did not change the layout window.

New in Caepipe 6.30 (May 30, 2012)

  • Piping code B31.8 updated to B31.8 (2007). Refer Appendix-A of ReadMeSupplement_v63.pdf for more details.
  • Piping code EN 13480 updated to EN 13480 (2009). We observed that the Piping design equations, Flexibility Factors and SIFs have not changed since last EN 13480 (2002) code.
  • New feature added to Renumber the nodes automatically while inserting a new row or deleting an existing row. User can turn ON / OFF this feature through CAEPIPE Main Frame -> File -> Preferences->Automatic renumber of nodes.
  • New Feature added to check the layout before save. Issues warning message when it finds errors in layout.
  • Improved convergence routine for Slip and Hinge joints with specified displacements for Anchors.
  • Bug Correction: Scaling of stress values in Graphics window was not plotted properly for Sorted FRP stresses.

New in Caepipe 6.20 (May 30, 2012)

  • Piping code B31.3 updated to B31.3 (2008). Refer Appendix-A of ReadMeSupplement62.pdf for more details.
  • Corrosion allowance, Mill tolerance, Insulation and Lining densities are carried forward only for a new section and not for an existing sections, if defined, while modeling.
  • Bug Correction: Importing an mbf file was setting the Bend SIF to 1.0.
  • Bug Correction: Anchors placed on jacket pipe were not rendered properly.