UDEC 7.00 Update

Update Instructions

Getting Started with UDEC 7:

  • All commands in UDEC have changed! This is to provide future consistency and compatibility across all Itasca software. While some old commands may still work, this is not guaranteed.
  • There are sections in the program menu Help->help that list on to one mappings of the old to new commands.
  • There is an automatic command conversion tool built into the GUI version (not GIIC) of the program. Load the file (data, FISH, or GIIC project files) into the built-in editor and then click edit -> command conversion.
  • The new UDEC is built around the use of project files. These project files are different from the GIIC project files and have a different file extension. It is highly recommend to use project files as they provide a base for the location of the project and will store plot settings.
  • UDEC 7.00 is built on Visual Studio 2017. DLL’s from VS 2010 will not be compatible. There is not currently a template for creating UDMs in 2017. The header files and libraries required for this are included. The example solution that is included in the install may be modified for a new DLL. Instructions for doing this are in the Constitutive Model Volume of the PDF manual.
  • The help has been converted to provide guidance for the new commands. The keyboard shortcuts CTRL+space and F1 will list keywords in the editor.
  • The manual PDF files contain detailed background theory and instructions on how to use UDEC. The Command and FISH references have been moved to the online Help->Help.


Visual C++ 2017 Runtime Library

UDEC 7.0 requires the Microsoft Visual C++ 2017 Runtime Library. If these files have not been previously installed or are experiencing errors related to missing DLLs, the runtime may not be present and will need to be installed.

With administrative privileges run C:\Program Files\Itasca\UDEC700\exe64\vc_redist.x64.exe to install the necessary files. Note this step need only be performed once.


Supplementary Files


Download Recent Update

Latest Version: 7.00.55
Released On: Dienstag, Aug. 18, 2020

UDEC 7.00 64-bit Update

Software Update Revisions

Revision Date Description
55 Aug. 18, 2020
  • Added missing block.struct.cable.strain FISH function.
54 Juli 21, 2020
  • Fixed error in deleting temporary files in the GIIC.
  • Fixed error in gridpoint acceleration histories.
  • Fixed error in gridpoint acceleration calculations.
53 Juli 16, 2020
  • Fixed error in plotting cable node shear force.
  • Added series control for scanline plot. This allows changing the line attibutes.
52 Juli 14, 2020
  • Fixed error in block.zone.biot(ind)
  • Fixed a error in "block cut dfn". The command was not clearing settings from a previous "block cut joint-set" command.
51 Juni 25, 2020
  • Fixed error in processing "block list on-line" command.
50 Juni 10, 2020
  • Fixed typo in GIIC for "block solve relax table-ground-reaction" command
  • Removed some decremented keywords in block solve relax so they do not show up in the inline help functions (ctrl ?).
  • Added "overburden" keyword to "block insitu stress-topography". This is useful if your model does not extend to the actual ground surface.
  • Fixed the command generation for "block edge apply pressure-gradient-x" and "pressure-gradient-y" in the GIIC.
  • fixed an error processing "block edge apply pressure-gradient-y".
  • Fixed a command processing error in the "block edge apply stress-principal" and "block insitu Stress-principal" commands. The keyword "s3" was not accepted.
49 Juni 1, 2020
  • fixed crashing problem in plotting properties for excavated (null) zones.
48 Mai 29, 2020
  • Fixed bug in GIIC command generation when changing the Solve Step limit.
47 Mai 18, 2020
  • Updated Help files for FISH functions
  • Fixed a bug when plotting zone models and turning on the "excavatons" option.
46 Mai 15, 2020
  • Added a keyword (edge_tolerance) to the "block zone gen manual" command. This keyword allows setting a tolerance that controls how close to a block edge a user specified gridpoint must be to be considered on the edge. This is intended to solve issues of numerical precision when generating zones from outside sources. The tolerance is specified as a fraction of the block corner-round-length. A typical value would be 0.1. It is unknown how large this value may be before the model results would be adversly affected.
45 Apr. 30, 2020
  • Fixed errors in block zone gen manual command.
  • Changed block zone manua, command so that gridpoints are numbered in the order that they are defined. Previously they were numbered in reverse order which made the command more difficult to use.
44 Apr. 7, 2020
  • Changed the default for plotting zone stresses from volume averaging to constant. This speeds up plotting for large models.
  • Fixed Plot item attributes for domain and joint plots.
  • Updates to UDEC Help.
  • Fixed error in block.zone.area FISH function.
43 März 12, 2020
  • Fixed error in previous update MSI file.
42 März 10, 2020
  • Updates to UDEC Help.
  • Fixed a bug in block.contact.disp.shear = 0.0.
  • Fixed a bug in block contact initialize disp-normal.
  • Fixed a bug in block contact initialize disp-shear.
41 Feb. 20, 2020
  • Fixed a bug that was causing solve factory-of-safety to quit calculating for cases where FoS was less than 1.0.
  • Fixed a bug in displaying zone groups in the GIIC
40 Jan. 27, 2020
  • Made block.domain.contact FISH function thread safe.
  • Fixed spacing calculation for structural element force plots.
39 Dez. 31, 2019
  • Fixed an error where an internal debug file was being created.
38 Dez. 23, 2019
  • Fixed a problem with the range parsing for block struct cable delete
37 Dez. 19, 2019
  • Added block.corner.boundary.int FISH function.
  • Added block.contact.aperture FISH function
  • Added block.contact.flow.rate FISH function
  • Fixed a bug that was causing aditional un-needed calculations to occur for beam element nodes.
  • Fixed a bug that would cause a crash while resizing the axes plot item.
  • fixed a bug that occured when issuing the command "block create polygon ?"
  • Fixed an error in the command parsing for setting the model origin to be used for 3D join sets.
  • In solve relax, the table_solve_ratio, was being used offset by one value (eg. 2nd value rather than 1st). This has been fixed.
36 Dez. 13, 2019
  • Added a check for bad data on startup in GIIC.
  • Fixed a problem with the value selection in scanline plot for joint crossing
35 Dez. 9, 2019
  • Added Master option for block plot item. This option plots blocks colored by the master block for joined blocks. All blocks that are joined to each other will be the same color. This option reqiures the model to have been created by subversion 35 or later.
  • Fixed problems wth plot titles and job title on plots.
  • Fixed errors in scanline chart plot.
34 Nov. 25, 2019
  • Added block corner history acceleration-x and acceleration-y
  • Made changes to speed up stress contour plots. Only minor speedup achieved so far.
  • Fixed history locations for corner histories.
  • fixed bug in block.corner.rot FISH function.
33 Nov. 20, 2019
  • Added thickness by magnitude to joint plots.
  • Fixed error in plotting applied boundary forces. The Y component was incorrect.
  • Fixed parsing for plot legend commands.
  • fixed parsing for block list color settings.
  • Fixed a property miss-spelling in the GIIC ("fricion-residual" to "friction-residual")
  • Fixed a command error in solve relax in the GIIC.
  • Changed the GIIC command "no_restore" to "no-restore".
  • Changed the GIIC command "vor edge" to "vor edge-maximum"
32 Okt. 29, 2019
  • Fixed block.extra(block index,slot) FISH function. Was not accepting a slot value.
  • Fixed keywords in Help for model solve relax. They should have been the same as for block solve relax.
  • Fixed error in property keywords (yield-tension-force, and yield-shear-force) for block structure reinforce property command.
  • Added pline location data to pline plot export.
  • Fixed a parsing error for block dynamic free-field history acceleration-y.
  • Fixed an error in GIIC while generating viscous boundary commands.
31 Okt. 24, 2019
  • Fixed an error parsing the group-block plot command.
  • Fixed block contact list model-table. It should be block contact list material-table.
  • change model-table to material-table in Help.
30 Okt. 18, 2019
  • fixed an error in parsing properties for jcons 5 and jcons 7 contacts.
29 Okt. 10, 2019
  • Fixed an error where a rockbolt would borrow an existing node rather than creating a new one.
  • Fixed an error where value bars would cause a crash for a lone beam element.
  • Fixed the copy to clipboard option on the GIIC.
28 Okt. 2, 2019
  • Fixed the use of a Barton Bandis model as the default for new contacts.
  • Fixed picking on rockbolt elements that was causing UDEC to crash.
27 Sep. 26, 2019
  • Removed master/slave line from block info.
  • Put correct data files into the UDM folder.
  • Fixed listing of key options on model new.
  • Fixed plotting of block fixity.
  • Added missing constitutive model source files.
  • Fixed typos in timing.dat file.
26 Sep. 12, 2019
  • Fixed error in solve.ratio.maximum FISH function.
  • Fixed error in plotting ubiquitous joint angle for the softening-ubiquitous model.
  • Fixed error in viewing output data in the GIIC that was introduced in update 19.
25 Sep. 2, 2019
  • Fixed error with specifying joint-ID when using block cut dfn.
  • Fixed parsing errors for manual dynamic free-field commands.
  • Fixed errors in command conversion for manual dynamic free-field commands.
24 Aug. 27, 2019
  • Fixed the example data files for DFN in the Help.
  • Fixed the block.domain.contact FISH function.
  • Fixed the block mechanical reset displacement command.
  • Changed the base.h path in the plugin files.
  • Changed the number of processors reported to be consistent with other codes (was not including the main thread).
  • Changed the overlay number from 0 to 1 to be consistent with other codes (UDEC does not use overlays in the constitutive models).
23 Aug. 14, 2019
  • Fixed global FISH functions global.gravity and global.timestep.
  • Cleaned up some data files.
  • Fixed up data test files.
  • Fixed name returned by block.zone.model FISH function.
22 Juli 22, 2019
  • Switched to release version.
  • Fixed some plot command processing errors.
21 Juni 19, 2019
  • Fixed offset problem with PROP FISH FUNCTIONS.
  • Model new now clears model title
  • Changed attempts to reload a DLL model from an error to a warning.
20 Juni 6, 2019
  • Fixed errors in parsing "block contact cmodel assign" for User Defined Joint Models (UDMJ).
19 Juni 6, 2019
  • Fixed errors in parsing "block contact cmodel assign" for User Defined Joint Models (UDMJ).
18 Mai 17, 2019
  • Fixed bugs in parsing block mechanical damp command.
17 Mai 8, 2019
  • Disabled the FISHcall jcons5 crack in the multi-threaded version of the constitutive model. This was causing UDEC to crash.
16 Apr. 25, 2019
  • Fixed a bug that was causing random crashes to occur.
15 Apr. 10, 2019
  • Made changes to prevent crashing of GIIC during save/restore and cycling.
  • Fixed bug in "model display history n" command.
  • Fixed bug in plotting block properties.
  • Improved error handling while generating GIIC plots.
14 März 27, 2019
  • Fixed an error in transferring liner data to GIIC.
  • Fixed an error in saving the names of Joint models. This was causing UDEC to crash restoring save files.
  • Fixed an error in selecting gridpoint histories when both FDEF and RIGID blocks are present.
  • Removed File Browser pane. This was causing UDEC to time out while loading on computers with large file systems.
13 Okt. 23, 51159
  • Fixed error in block insitu topo command.
12 Feb. 28, 2019
  • Fixed problem with parsing model domain extent command.
11 Jan. 14, 2019
  • Fixed bug in GIIC version that was causing it crash in Windows 7.
  • Fixed bug in block struct liner apply pressure.
  • Fixed bug in GIIC registry items.
  • Fixed Biot-c property name.
  • Updated most of the GUI projects and data files (not GIIC projects yet).
  • Added Cable and Rockbolt pretensioning (fix-tension/free-tension). This requires cycling to distribute pretension forces.
  • Changed "fast-flow" back to "incompressible flow".
  • Added thermal option to boundary plot.
  • Added an option to link GIIC project to a data file. This makes it easier to import data files into the GIIC and to share a data file between the GIIC and the GUI.
10 Dez. 13, 2018
  • Added switch for plotting rounded block corners (default is off).
  • Fixed problem with plotting rigid block contours for concave blocks.
  • Added ability to display revision notes at startup.
  • Added Tool-> dynamic input wizard.
  • Fixed ID ranges when plotting structural elements.
  • Fixed movie generation.
  • Fixed error in plotting local reinforcement.
  • Added Structural support FISH intrinsics.
  • Added block thermal total-time command.
  • Fixed bug in block contact join by-block command.
9 Okt. 30, 2018
  • Fixed a bug in command to assign joint dilation angle.
  • Added fragment plots.
  • Added fluid flow vector plots.
  • Added fluid far field plot.
  • Fixed bugs in assigning properties to null zones and replacing null zones with fill.
8 Okt. 11, 2018
  • Fixed bug in read status in fish file.read.
7 Okt. 3, 2018
  • Fixed bug in boundary range control.
  • Fixed issues with GUI layout.
  • Fixed bugs in DFN creation.
  • Fixed some bugs in GUI range elements.
6 Sep. 26, 2018
  • Fixed bug in conversion of set fishcall.
  • Fixed bug in plotting boundary conditions.
  • Fixed bug in block.gp.reaction.x and block.gp.reaction.y FISH functions.
  • Fixed bug in plotting density for rigid blocks.
  • Fixed bug in plotting block fixity.
  • Fixed problems with the mouse-over and picking in block plots.
  • Fixed a problem with jointset-id when using a geometry to create the model.
  • Fixed conversion program for ubiquitous-joint and softening-ubiquitous models.
  • Fixed ubiquitous angle plot.
5 Sep. 20, 2018
  • Fixed bug in assigning null model.
  • Fixed bug in displaying model name for null model.
  • Fixed problems with plot item create command.
  • Fixed problems with set attribute dialog.
  • Fixed error in GIIC startup.
  • Fixed FISH command typos in documentation
4 Sep. 5, 2018
  • Fixed bug in block create fill command.
  • Fixed bug in plotting contours of user defined extra data.
3 Aug. 31, 2018
  • Added *.fin as an editable file in editor.
  • Cleaned up line color controls in joint plot item.
  • Fixed command conversion for set crack_flow on.
  • Fixed bug in displaying contact index numbers.
  • Fixed command conversion for solve relax
2 Aug. 31, 2018
  • Fixed problem with setting thermal properties.
  • Added block.corner.next fish function.
  • Fixed problem with saving window pane geometry.
  • Fixed bug in FISH block.group() when specifying a slot name.
  • Fixed a bug in FISH block.zone.density()
1 Aug. 24, 2018
  • Fixed bugs in conversion tool.
  • Converted all of the data and project files to new command syntax.
  • Modified block.zone.pp to allow setting value.

Neuesten Nachrichten
  • COVID-19 Hinweis ...
  • User Defined constitutive Models (UDM) Auf unserer Homepage finden Sie jetzt eine neue Zusammenstellung von ausgewählten User Defined constitutive Models....
  • FLAC3D 7.0 Erfahren Sie mehr über die neuen Funktionen von FLAC3D Version 7.0....

Kommende Veranstaltungen
2 Feb
This hands-on, virtual training course is 16 hours total, spread over four days in a 1.5-week period, and covers the analysis of embank... Weiterlesen