Contents

• Frew 18.2 Build 1 (released 19 October 2007)
  • New Features
  • Fixes
• Geo 18.1 Build 5 (released 22 May 2006)
  • New Features
  • Fixes
• Outstanding Bugs

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Frew 18.2 Build 1: New Features

• A 'Gateway' window has been implemented to provide easy access to input data, tabular data and graphical views.
• The Frew Toolbar has been implemented to provide easy access to the most frequently used views and commands.
• The menu structure has been re-arranged to provide a separate 'Graphics' menu to access settings for the Graphical Output view.
• The data from a Frew model can be exported as a nearly equivalent Safe model via Gwa file format using Frew-Safe Link feature.
• Periodic web activation for Arup and Unipac editions added. (Release 6 onwards.)

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Frew 18.2 Build 1: Fixes

• The ‘name’ field on the tabular input data view is not shown on the textual output view.
  [NCR 43](Fixed 10 February 2007; released in Release 1)
• Analysis errors if switch EP coeffs to specified
  [NCR 955](Fixed 10 February 2007; released in Release 1)
• If user deletes nodes in Soil Zones view, gets error message "enter nodes in descending order" if then tries to change existing node to level within the range just deleted.
  [NCR 1351](Fixed 20 February 2007; released in Release 1)
• All struts at same node not being printed.
  [NCR 1799](Fixed 18 October 2007; released in Release 2)
• BS8002:1994 partial factors displayed in partial factors dialog incorrect.
  [NCR 1806](Fixed 18 October 2007; released in Release 2)
• Batch plotting not working correctly in Frew.
  [NCR 2143](Fixed 18 October 2007; released in Release 2)
• Inconvenient scales in Frew graphical output.
  [NCR 2142](Fixed 12 December 2007; released in Release 3)
• Zoom feature not working properly in graphical output.
  [NCR 2354](Fixed 19 December 2007; released in Release 4)
• Graphical output defaults to huge maximum.
  [NCR2820](Fixed 17 June 2008; released in Release 5 (Frew 18.2.1.4))
• Glut32.dll omitted from Release 5
  (Fixed 25 June 2008; released in Release 6 (Frew 18.2.1.4))
• Compiled with new library dlls
  (Fixed 08 August 2008; released in Release 7)
• Soil Zones' and Node Levels' data tables open in views that are unnecessarily narrow to display the columns that are available.
  [NCR3048](Fixed 2 September 2008, released in Release 8 (Frew.exe 18.2.1.5))
• 'No change' button on the 'Stage Operations' view may not be effective.
  [NCR3049](Fixed 2 September 2008, released in Release 8 (Frew.exe 18.2.1.5))
• Incorrect behaviour of Wall Relaxation in the Analysis Data window, and of the 'No Change' button in the Stage Operations window, as described below.
  • If wall relaxation is applied to a Stage in which the wall EI has already been set explicitly by the user, then those EI values fail to be adjusted. They should be adjusted according to the relaxation value applied to the previous Stage, and the user warned that the values in the relaxed Stage will be overwritten.
  • If wall relaxation is applied to a Stage then subsequent Stages should have their EI values adjusted similarly until a Stage is reached in which the EI values have been adjusted either explicitly or via further wall relaxation. Presently EI values are only changed in the Stage in which wall relaxation is applied.
  • Clicking "No Change" in a Stage whose wall data has changed fails to effect an update or cause an already open Node Data table to be updated.
  • If wall relaxation is applied to a Stage and, subsequently, the EI of the Stage on which the relaxed value depends is changed, then the dependent values in later Stages should be adjusted.
  [NCR3128](Fixed 25 September 2008, released in Release 8 (Frew.exe 18.2.1.5))
• Pore pressures on graphical output changed to show correct point at which u=0. Annotation of pressure limits changed to 'Total' rather than 'Undrained', if undrained pore pressure calculations are performed.
  [NCR3062](Fixed 3 October 2008, released in Release 8 (Frew.exe 18.2.1.5))
• Earlier fix to NCR 2142 did not correctly treat user's entered max values for plotting.
  [NCR 2142](Fixed 28 October 2008; released in Release 8 (Frew.exe 18.2.1.5))

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Geo 18.1 Build 5: New Features

• The program can now calculate undrained pore pressures based on possible stress paths. A shape factor allows variation of the failure envelope between Mohr-Coulomb and Modified Cam-Clay. A spreadsheet is provided with the program to allow users to experiment with this parameter before using the feature.
• 'Automatic Node Generation' has been implemented in a separate program - FrewNodes. The user specifies: the position of soil layer levels which lie midway between the nodes; the ground level; positions of change in wall EI values; positions of struts; specific node positions; the ratio of the maximum element length to minimum element length; and the maximum number of nodes that are allowed. The program then generates additional intermediate nodes which satisfy the above criteria. This data can then be input to Frew.
• A separate table has been added for the entry of node levels' data, in order to facilitate copying data from FrewNodes program.
• The combined graphical input and table views have been split.
• Node data tabular and graphical input views adjusted to open beside each other.
• Data files may now be emailed directly from the program's interface via the 'File' menu.
• The text output of the results view has been improved. It may now be exported to a range of file formats via the 'File' menu.
• Standard sets of units (SI, kN-m, kip-ft and kip-in) may be selected via the Units and Preferences dialog.
• So as to help users to ensure that they are running the latest software a new version checking system has been implemented. This compares each executable file installed locally with the set that Oasys identifies as being the 'current' version. (The comparison is carried out locally; no data is transmitted to Oasys.) Executables for which updates are available are highlighted. Updates may then be downloaded from the Program's Downloads page on the Internet. This system enables rapid delivery of bug fixes and, occasionally, minor enhancements.

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Geo 18.1 Build 5: Fixes

• The default intervals for graphs should be improved. NOT 62.5 or 112.5, etc [O-122].
  [NCR 4]
• The current, working folder is only updated on closing the program.
  [NCR 11] (Fixed 10 June 2005)
• Reinstate calculation of K_ac and K_pc for user-defined K_a and K_p.
  [NCR 14] (Fixed 26 April 2006)
• Adding nodes after problem defined causes crash.
  [NCR 16] (Fixed 26 April 2006)
• "Change this stage" button status should be improved to work properly.
  [NCR 17] (Fixed 11 July 2005)
• Frequent crashing when Stage Operations tree control is exercised.
  [NCR 21] (Fixed 11 July 2005)
• Pressure limits are inappropriate. The graphics view may hang or provide incomplete data.
  [NCR 28] (Fixed 30 May 2006)(Released 30 May 2006 in Frew.exe 18.1.6.0)
• Editing data in one Stage may interfere with the data for other Stages incorrectly.
  [NCR 30] (Fixed 30 May 2006)(Released 30 May 2006 in Frew.exe 18.1.6.0)
• Copy/Paste is unreliable in Materials table.
  [NCR 34] (Fixed 30 May 2006)(Released 30 May 2006 in Frew.exe 18.1.6.0)
• The retaining wall is shown with an inconveniently large width when the Graphic View is printed.
  [NCR 31](Fixed 13 June 2006)(Released 14 June 2006 in Frew.exe 18.1.7.0)
• The help file references the un-drained to drained spreadsheet by an incorrect name ("undr-dr-calc.xls" should read "undr_dr_calc.xls") and in an incorrectly named folder ("Examples" should read "Samples").
  [NCR 33](Fixed 15 June 2006)
• Cohesion value not correctly calculated for use in undrained pore pressure calcs, where material cohesion varies with depth.
  [NCR 40](Fixed 24 July 2006)(Released 25 July 2006 in Fwdcal.dll 18.1.6.0)
• The specification of undrained pore pressures together with Minimum Equivalent Fluid Pressures (MEFP) may give incorrect results.
  [NCR 41](Fixed 28 July 2006)(Released 31 July 2006 in Fwdcal.dll 18.1.7.0)
• Partial factor on Cu is shown the same as that applied to C' on output view
  [NCR 44](Released 12 Oct 2006 in Frew.exe.18.1.10.0)
• Partial factors not being applied correctly when passive softening/gradient of c also specified
  [NCR 45](Released 12 Oct 2006 in Frew.exe.18.1.10.0)
• Pasting into the materials' table fails to register the new Phi, Delta/phi etc values in the data, and will fail to update dependent values of K_a, K_p, K_ac and K_pc.
  [NCR 46](Fixed 31 Oct 2006)(Released in Frew.exe 18.1.11.0)
• MEFP calculation reported MEFP as governing criterion in some circumstances when it was not. Caused by flag being set during iterations instead of at end. Value was also incorrect for some node geometries.
  [NCR 1590](Fixed 19 June 2007)(Released in Fwdcal.dll 18.2.1.0)

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Outstanding Bugs

• None are recorded.

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© 2007 Oasys Ltd