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From: <toc...@li...> - 2020-01-20 14:32:26
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Dear All, If anyone is still using Tochnog from sourceforge, they can have a look also at the free Tochnog Professional. Please see http://www.tochnogprofessional.nl. Kind, Dennis |
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From: <toc...@li...> - 2020-01-20 14:29:36
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Dear All, If anyone is still using Tochnog from sourceforge, they can have a look also at the free Tochnog Professional. Please see http://www.tochnogprofessional.nl. Kind, -- Dr. Dennis Roddeman, http://www.tochnogprofessional.nl This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden. |
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From: <toc...@li...> - 2019-03-06 17:14:58
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Hi All, Tochnog Professional now has an EasyTochnog extension, see http://www.tochnogprofessional.nl/easy_tochnog/page.php. With simple input data like pile diameter, pile length, slope geometry, sheet pile data, etc. a complete Tochnog Professional input file is generated for typical geotechnical problems. In this way, you don’t need to find out which commands are relevant for your analysis; these are automatically collected in the generated input file. Moreover, the generated input files are set up such that simply changing input data (e.g. the pile radius etc) is automatically used for everything, like mesh generation, reaction force calculations, etc.. This EasyTochnog extension combined with the possibility to change the generated input file yourself, now allows for both easy and flexible advanced calculations. Best, -- Dr. Dennis Roddeman, http://www.tochnogprofessional.nl This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden. |
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From: <toc...@li...> - 2017-04-19 06:17:25
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Hi All, I forgot: you need to visit http://www.feat.nl to download that trial. Best, Dennis -- Dr. Dennis Roddeman FEAT, www.feat.nl The Netherlands, Chambre de Commerce Registration: 14065208 This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden. |
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From: <toc...@li...> - 2017-04-19 06:11:52
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Hi All, Now there is a Tochnog Professional trial version available. Both MS Windows and Linux. Both 32 bit and 64 bit. Time unlimited. Number of elements limited to 100. best, Dennis Roddeman -- Dr. Dennis Roddeman FEAT, www.feat.nl The Netherlands, Chambre de Commerce Registration: 14065208 This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden. |
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From: <toc...@li...> - 2016-10-30 18:20:23
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Hi, There was a recent comment about old CVS repository of Tochnog. I have added Git repository and updated it with the most recent source I could find on SourceForge. The repository can be found here: https://sourceforge.net/p/tochnog/git/ci/master/tree/ This is just starting version. It should compile on Linux, though I have to test it yet. There is much to do to bring this repository to shape, however. For instance I intend to switch from autotools to CMake. Alternatively one can look at my clone of Tochnog at: https://femdk.l5.pk.edu.pl/TochnogLib This is somehow experimental, however it should compile. Regards, Roman |
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From: <toc...@li...> - 2016-10-09 14:28:07
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On Sunday, October 02, 2016 08:55 PM, toc...@li... wrote: > Dear — st > > The development version binary for linux are available from > http://gmsh.info Hi Fernando, Ah, I mistook it to be the development version of tochnog. So the latest version of linux binary (in sourceforge) is still dated Feb2013. And will the Jan2014 source build with linux? I don't see any linux binary for this version. BTW, the cvs repo seems very old. Is the source now hosted somewhere else? Thanks for the reply and regards, -- st |
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From: <toc...@li...> - 2016-10-02 12:55:10
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Dear — st The development version binary for linux are available from http://gmsh.info Just click on the version that you need (32-bit or 64-bi) and it will download the requested binary. Look at the example on how to use Gmsh with Tochnog that I posted yesterday. Best regards, Fernando Lorenzo fel...@at... |
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From: <toc...@li...> - 2016-10-02 12:03:09
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On Sunday, October 02, 2016 02:19 AM, toc...@li... wrote: > Dear Tochnogers, > > The post just made did not copy the intended files, so I just uploaded > to the Tochnog Sourceforge site. https://sourceforge.net/projects/tochnog/ > > I also included the latest binaries for MacOS Sierra and Windows. The > latest windows version was built linking against the latest Lapack > Library version 3.61. > > Enjoy, and let me have you r feedback. > > Best regards, > > /Fernando Lorenzo/ > fel...@at... <mailto:fel...@at...> Hi Fernando, I'm running linux and I'd like to give it a try. Where can I get the "development version" as mentioned on the sf web page? I tried the windows version under wine (with the slope example) but it segfaulted. Thanks the effort to keep tochnog alive! Regards, -- st Thanks for your effort! > > > > > > > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, SlashDot.org! http://sdm.link/slashdot > > > > _______________________________________________ > Tochnog-users mailing list > Toc...@li... > https://lists.sourceforge.net/lists/listinfo/tochnog-users > |
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From: <toc...@li...> - 2016-10-01 18:20:03
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Dear Tochnogers, The post just made did not copy the intended files, so I just uploaded to the Tochnog Sourceforge site. https://sourceforge.net/projects/tochnog/ I also included the latest binaries for MacOS Sierra and Windows. The latest windows version was built linking against the latest Lapack Library version 3.61. Enjoy, and let me have you r feedback. Best regards, Fernando Lorenzo fel...@at... |
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From: <toc...@li...> - 2016-10-01 00:48:28
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Dear tochnogers, I am including an example of a mesh with an input file, the edit necessary to run it with tochnog and the post processing file using the awk script indicted. Let me have any questions or feedback. Included in the zip file are: The geometry file created with gmsh Test-3D-tetras.geo the Tochnog format file mesh created with gmsh Test-3D-tetras.dat The file edited to use as input file for Tochnog renamed Test-3D-tetras-tochnoginput.dat The Tochnog output files we use the .dbs Test-3D-tetras-tochnoginput.dbs The mkgmsh.awk script to process the Tochnog output file to create the post processing file foo.pos (foo.pos is the post processing file in the gmsh format) Inside the mkgmsh.awk are the instructions on how to run the .dbs file From the terminal application type "gawk -f mkgmsh.awk name_of_.dbs_file.dbs” to get as output : foo.geo and foo.pos files Then start gmsh and do the following # use gmsh to open foo.geo or the originally created .geo file and use the "merge” menu option to merge with with foo.pos # use the post processing controls to turn off all but one of the # output values (all of the dof_label are processed). That is all there is! I will be posting more examples in the upcoming weeks. Fernando Lorenzo fel...@ic... |
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From: <toc...@li...> - 2016-08-21 22:03:27
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Gmsh pre and post processing option available for Tochnog Dear Tochnogers, We are pleased to announce that collaboration between Roman Putanowicz and Fernando Lorenzo have resulted in now being able to offer the use of Gmsh, and Open Source, Free Pre and Post Processing option for Tochnog. If you search for gmsh or go to http://gmsh.info you will find the link. At this moment, to get the version that works with Tochnog, you must download the Development version, with the same code being included in future stable versions. Development version: automated nightly snapshots (dashboard <http://onelab.info/CDash/index.php?project=Gmsh>): Windows 32 bit <http://gmsh.info/bin/Windows/gmsh-svn-Windows32.zip> / 64 bit <http://gmsh.info/bin/Windows/gmsh-svn-Windows64.zip>, Linux 32 bit <http://gmsh.info/bin/Linux/gmsh-svn-Linux32.tgz> / 64 bit <http://gmsh.info/bin/Linux/gmsh-svn-Linux64.tgz>, Mac OS X <http://gmsh.info/bin/MacOSX/gmsh-svn-MacOSX.dmg> and source code <http://gmsh.info/src/gmsh-svn-source.tgz> As you can see, you can download binary versions for Windows, Linux or Mac OS X or the source code and you can build it yourself. This is a major step for Tochnog as it now incorporates the ability to use Gmsh for building much more complex, professional meshes, the ability of defining multiple materials and any boundary conditions with Gmsh. Post processing is available with the use of an AWK script written by Osman Buyukisik several years ago. A copy of the AWK script mkgmsh.awk is included with this announcement. We are now in the process of building the option for Tochnog to write the Gmsh Post processing file directly. We will be announcing when the option becomes available. We hope that you enjoy this new option, an option that we believe, no doubt, it will help Tochnog to increase by users that are looking for an excellent Multi-Physics Finite Element application which now, in addition to the long existing GiD option, it offers the option to use an excellent Free Open source option. Let’s spread the word and help keep Tochnog alive. Cheers, Fernando Lorenzo fel...@at... |
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From: <toc...@li...> - 2016-01-04 00:22:34
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Dear Tochnogers, As 2016 is now upon us, I am taking the opportunity to wish everyone a Happy New Year and to ask for your help into making Tochnog even better. As I hope everyone knows and understands by now, although Tochnog has built in meshing capabilities, to model serious cases, a proper pre and post processor is needed. In this respect, GiD (http://www.gidhome.com <http://www.gidhome.com/>) has a nice interface for creating meshes, assigning material properties and boundary conditions, in addition to being excellent at post-processing Tochnog results. GiD’s only drawback is that it is not open source and the student version has limited element and node restrictions. GMSH (http://geuz.org/gmsh/ <http://geuz.org/gmsh/>) is open source, has seen a lot of development, but does not offers the capability of saving a mesh in a format that Tochnog can understand or read the Tochnog results for post processing. Osman Buyukisik built AWK scripts to convert a GMSH mesh into Tochnog format and for converting a Tochnog result file into a gosh post processing file. Ideally, what we are looking for is for building a module into gmsh that would allow gmsh to write a Tochnog *.dat file and to be able to read a Tochnog results file for post processing. Two options are possible: the first one is to build the tools/options into gmsh, or to write the translators in c++ that will read the gmsh mesh and will convert that into Tochnog format and do the same with the post processing file. Roman Putanowicz has started working in this process, but any help or input from other fellow users will be greatly appreciated. If we are able to build these options we can ensure that Tochnog will continue to exists and will grow as the great tool it is. Thanks everyone and Happy New Year. FERNANDO LORENZO fel...@at... |
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From: <toc...@li...> - 2015-07-10 04:33:01
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Hi Tochnogers, I’m trying to simulate a soil-structure interaction. It consists of a thin-wall pipe embedded within a soil block, which has prescribed displacement at its boundaries. Obviously, as the soil moves downwards, and due to its lower stiffness, should ‘flow’ around the pipe, but nonetheless inducing some stresses to it, which eventually will end up in deformation of the pipe (way smaller than the soil surrounding it). My initial idea was to use the contact algorithm because interfaces haven´t been implemented in tochnog yet. However, now I’m not sure if it’s gonna work. I modified the file given in http://tochnog.sourceforge.net/ho_mech1.dat <http://tochnog.sourceforge.net/ho_mech1.dat>, which is a rubber ball being pressed downwards. I substituted the contact boundary by a block of the same material and set the contact with the ‘node_boundary’ option. It worked and the ball continues being deformed, but the block below was´t affected too much (some deformation was seen). Therefore, I decided to modify the stiffness of the material of the ball to be 100 times larger than the rubber, which now stays beneath the ball. I was expecting a larger deformation of the block below due to its smaller stiffness (100 lower than the ball pressing it). However, it wasn´t the case and the ball continues deforming more than the block, which actually presents some deformations upwards!! Does anyone have an idea of how can I have this ‘two-bodies’ interaction. I’m attaching the modified data file if someone might find some errors. Thank you very much in advance for your help. cheers, Ferney echo -yes number_of_space_dimensions 2 materi_velocity materi_displacement materi_stress materi_strain_elasti materi_strain_total end_initia node 0 0. -0.2 node 1 0. -0.1 node 2 0. 0.0 node 3 .1 0.0 node 4 .2 0.0 node 5 .1414 -0.14142 node 6 .0805 -0.06667 node 7 0 -.21 node 8 .3 -.21 node 9 .3 -.4 node 10 0 -.4 element 0 -quad4 0 5 1 6 element 1 -quad4 5 4 6 3 element 2 -quad4 1 6 2 3 element 3 -quad4 10 9 7 8 element_group 0 1 element_group 1 1 element_group 2 1 element_group 3 0 group_type 0 -materi group_materi_memory 0 -total group_materi_elasti_young 0 2.82 group_materi_elasti_poisson 0 0.49967 group_type 1 -materi group_materi_memory 1 -total group_materi_elasti_young 1 282 group_materi_elasti_poisson 1 0.249967 (left edge) geometry_line 0 0.0 -0.2 0.0 0.0 1.e-3 (upper edge) geometry_line 1 0.0 0.0 0.2 0.0 1.e-3 (contact line) geometry_line 2 0.0 -0.2 1.0 -0.2 1.e-2 geometry_line 3 0 -.4 1 -.4 0.001 geometry_line 4 0 -.21 0 -.4 0.001 bounda_unknown 0 -geometry_line 0 -velx bounda_time 0 0. 0. 100. 0. bounda_unknown 1 -geometry_line 1 -vely bounda_time 1 0.0 -0.15 100.0 -0.15 bounda_unknown 2 -geometry_line 3 -vely bounda_time 2 0.0 -0.0 100.0 -0.0 bounda_unknown 3 -geometry_line 4 -velx bounda_time 3 0. 0. 100. 0. node_boundary -ra 7 8 -ra -yes contact_penalty_velocity 1.e5 contact_geometry 1 -geometry_line 2 post_node 1 -node_rhside -sum -geometry_line 1 control_mesh_refine_globally 7 -h_refinement control_mesh_refine_globally_geometry 7 -geometry_set 0 control_mesh_refine_globally 8 -h_refinement control_mesh_refine_globally_geometry 8 -geometry_set 0 control_timestep 10 0.01 1. control_timestep_iterations 10 10 control_print_gid 10 -yes target_item 1 -post_node_result 1 -vely target_value 1 1.41727 0.02 end_data |
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From: <toc...@li...> - 2015-02-17 15:27:19
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Tochnog users: I have found a bug in Tochnog. The command: post_line_dof -sigyy , used to compute the average stress on a line segment, does not give correct answers when using quad9 elements with reduced integration. However, I have also found tentatively, that the correct average stress is obtained by multiplying the Tochnog result by the length of the line segment where the average is found. This gives us a work around to the problem. I concluded the above based on one case I run. It would be good if somebody else confirms, independently, the work around to the problem and let us all know. Best regards, Oscar Ugaz |
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From: <toc...@li...> - 2015-02-17 15:03:24
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Tochnog users: I have found a bug in Tochnog. The command: post_line_dof -sigyy , used to compute the average stress on a line segment, does not give correct answers when using quad9 elements with reduced integration. However, I have also found tentatively, that the correct average stress is obtained by multiplying the Tochnog result by the length of the line segment where the average is found. This gives us a work around to the problem. I concluded the above based on one case I run. It would be good if somebody else confirms, independently, the work around to the problem and let us all know. Best regards, Oscar Ugaz |
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From: <toc...@li...> - 2015-02-12 12:30:14
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Hello everybody! Need help: I need to move a geometry_line that has initial boundary (bounda_dof 1 -geometry_line -velx) in such way that e.g. its one point moves with 0.1 velocity and another with 0.01 velocity in x-direction. I know if i prescribe something like: bounda_time 2 0.0 0.0 1.0 0.05 1.e5 0.05 then all points of the line will move with similar velocity, but how i can set the different velocity for the points of the geometry_ line? Thanks! |
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From: <toc...@li...> - 2015-01-15 00:20:35
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Dear Tochnog Users, I encounter two issues with disk1.dat example. 1) Firstly, in this example there is circle geometry defined with radius tolerance of 0.01. Then control_mesh_adjust_geometry command is used to make the mesh point to nicely follow the circle geometry. However the radius tolerance of 0.01 is to small -- the nodes of refined geometry do not fall into circle geometry area (the annulus), so after refinement nodes stay distributed on a line instead on the circle. Increasing the radius tolerance to 0.05 fixes the issue. In the attachment you will find images illustrating the annulus (circle) geometry for different radius tolerance and mesh before adjustment and after. Well, this is solved, but not the next one. 2) The unresolved so far issue is with displacement field. I have printed the mesh to VTK format and got totally absurd mesh node coordinates (negative values for x coordinates) as well as for velocity field. The same for gid output. I attach the data file. If someone would have a chance to run this example with his/her version of Tochnog I would be very grateful for information if the displacement and velocity fields looks correct. With kind regards, Roman -- Roman Putanowicz, PhD < put...@l5... > Institute for Computational Civil Engng (L-5) Dept. of Civil Engng, Cracow Univ. of Technology www.l5.pk.edu.pl, tel. +48 12 628 2569, fax 2034 |
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From: <toc...@li...> - 2014-01-09 19:39:49
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Dear Tochnogers, Upon testing the windows version in a different computer I realized that you need to have the following two dynamic libraries: libgcc_s_seh-1.dll and libstdc++-6.dll in the same folder where you have placed Tochnog.exe. I have updated the readme file advising of the need of those libraries and the Windows-64 zip file now includes the two required libraries. Just remember to have then in the same folder where you have Tochnog.exe so that they can be found. Best regards, Fernando Lorenzo fel...@at... |
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From: <toc...@li...> - 2014-01-05 22:35:16
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NEW OSX AND WINDOWS 64-bit BINARIES AND UPDATED SOURCE FILES Dear Tochnogers, I have spent some time working with Tochnog looking for ways to improve on its capabilities and have made a few corrections to one of the ground flow files to get Tochnog to print the ground flow analysis values properly. Additionally, the contributions made by Roman Putanowicz regarding the post_global.cc file are included. I have also expanded the tochnog.bas file which is part of the package to use GiD as pre and post processor, and implemented the ability of using GiD to generate tridimensional meshes with 10-node tetrahedras. I have tested it and it works as expected. I have re-built a Windows version of Tochnog, named Tochnog.exe and have placed it inside a folder that I have named Windows 64-bit binaries-Jan-2014. This time, in order to reduce the number of external libraries needed, I built Tochnog using the Double Precision version of CLAPACK version 3.21. Included are in case they are needed versions of libclapack.a, libblas.a and libf2c.a. Please let me know if other libraries are required, and I will find them and post them. Both, the Windows and OSX 64-bit versions can use the Bi-Conjugate or the LAPACK solvers, and contain the must up to date sources. If you want to use the faster Lapack solver remember to add the command “options_solver matrix_lapack” to your input file. The Linux 64-bit version binary will be added shortly. I have also included copies of the updated Tochnog manuals, the old Tochnog hands-on manual, and the manual contributions made by David Masin. Additionally, the most up to date sources and the Tochnog Test problems are also included Both, the Windows and Linux 64-bit versions can use the Bi-Conjugate or the LAPACK solvers, and were built using the most up to date sources. Best regards, Please help update and keep TOCHNOG alive!!!! Fernando Lorenzo fel...@at... |
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From: <toc...@li...> - 2013-12-27 02:15:08
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On 10/12/2013 01:49 AM, tochnog-users@... wrote: > Hi Florenzo, > > I tried to use element index -quad8, but the program erred with 'I do > not know : -quad8'. How to write the input file? > > Ning You can easily see which elements are supported by looking into the database.cc file. I don't see quad8. quad4, quad9, quad16 are available. The manual shows the node order for quad9. Quad16 should be similar. I dont think free Tochnog allows collapsing 9 noded quad into 8. If an element doesn't show up in the test folder, then most likely it is not supported. Osman Ning, my apologies for giving you the incorrect information regarding the use of quad8 elements. As Osman correctly pointed out, Tochnog allows the use of quad4, quad9 and quad16. I misunderstood your question. Technically speaking quad 9 elements are in may ways better than quad8 elements. In many circumstances when the geometry gets complicated, I have found it better to use a preprocessor to prepare the mesh for tochnog. GiD is the recommended application, but Gmsh is another good source and there is a translator to convert a Gmsh mesh into a Tochnog input file. Good Luck Fernando Lorenzo fel...@at... |
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From: <toc...@li...> - 2013-11-21 08:51:55
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ca...@ya... |
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From: <toc...@li...> - 2013-10-12 16:02:01
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On 10/12/2013 01:49 AM, toc...@li... wrote: > Hi Florenzo, > > I tried to use element index -quad8, but the program erred with 'I do > not know : -quad8'. How to write the input file? > > Ning You can easily see which elements are supported by looking into the database.cc file. I don't see quad8. quad4, quad9, quad16 are available. The manual shows the node order for quad9. Quad16 should be similar. I dont think free Tochnog allows collapsing 9 noded quad into 8. If an element doesn't show up in the test folder, then most likely it is not supported. Osman |
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From: <toc...@li...> - 2013-10-12 05:49:28
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Hi Florenzo, I tried to use element index -quad8, but the program erred with 'I do not know : -quad8'. How to write the input file? Ning On 2013/10/12 7:26, toc...@li... wrote: > Yes, > > Tochnog supports 8 node quadrilaterals > > FLorenzo > > > ------------------------------------------------------------------------------ > October Webinars: Code for Performance > Free Intel webinars can help you accelerate application performance. > Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from > the latest Intel processors and coprocessors. See abstracts and register > > http://pubads.g.doubleclick.net/gampad/clk?id=60134071&iu=/4140/ostg.clktrk > _______________________________________________ > Tochnog-users mailing list > Toc...@li... > https://lists.sourceforge.net/lists/listinfo/tochnog-users -- Geomechanics Group Department of Civil and Environmental Engineering The Hong Kong University of Science and Technology |
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From: <toc...@li...> - 2013-10-12 05:27:36
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Thanks. So I suppose the numbering of nodes is from bottom to top and from left to right like the following, right? 6 7 8 4 5 1 2 3 Ning On 2013/10/12 7:26, toc...@li... wrote: > Yes, > > Tochnog supports 8 node quadrilaterals > > FLorenzo > > > ------------------------------------------------------------------------------ > October Webinars: Code for Performance > Free Intel webinars can help you accelerate application performance. > Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from > the latest Intel processors and coprocessors. See abstracts and register > > http://pubads.g.doubleclick.net/gampad/clk?id=60134071&iu=/4140/ostg.clktrk > _______________________________________________ > Tochnog-users mailing list > Toc...@li... > https://lists.sourceforge.net/lists/listinfo/tochnog-users -- Geomechanics Group Department of Civil and Environmental Engineering The Hong Kong University of Science and Technology |
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