SfePy December 2011

sfepy@python.org

6 participants
10 discussions

Re: Torque
by Robert Cimrman 09 Mar '18

09 Mar '18

In examples/large_deformation/hyperelastic.py a rotation by displacements is applied. By using a similar function the vectors defining the force couples could be defined for dw_surface_ltr (IMHO). Does it make sense? r. ----- Reply message ----- From: "Andre Smit" <freev...(a)gmail.com> To: <sfepy...(a)googlegroups.com> Subject: Torque Date: Sat, Dec 18, 2010 05:10 What is the best way to apply a torque load to a model? -- Andre -- You received this message because you are subscribed to the Google Groups "sfepy-devel" group. To post to this group, send email to sfepy...(a)googlegroups.com. To unsubscribe from this group, send email to sfepy-devel...(a)googlegroups.com. For more options, visit this group at http://groups.google.com/group/sfepy-devel?hl=en.

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Re: Getting tension for each finite element
by Robert Cimrman 06 Jan '12

06 Jan '12

Hi Torsten! Look at the SfePy Primer [1], specifically the post-processing section. In short, you need to define a function ('post_process_hook' option in input file) that computes derived quantities from the computed variables (e.g. strain or stress from displacements). Let us know how it goes. Cheers, r. [1] http://docs.sfepy.org/doc-devel/primer.html ----- Reply message ----- From: "Torsten Bronger" <torsten...(a)gmail.com> To: <sfepy...(a)googlegroups.com> Subject: Getting tension for each finite element Date: Tue, Dec 20, 2011 22:22 Hallöchen! I used linear_elasticity.py as a starting point for simulating stress in thin silicon layers. My manual meshing worked, and the displacements seem to be calculated properly. However, how do I get the stress in each element? I need it for determining where the layer will break. The original node positions of the mesh are totally relaxated (no tension anywhere). Tschö, Torsten. -- Torsten Bronger Jabber ID: torsten...(a)jabber.rwth-aachen.de or http://bronger-jmp.appspot.com -- You received this message because you are subscribed to the Google Groups "sfepy-devel" group. To post to this group, send email to sfepy...(a)googlegroups.com. To unsubscribe from this group, send email to sfepy-devel...(a)googlegroups.com. For more options, visit this group at http://groups.google.com/group/sfepy-devel?hl=en.

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Progress Bar
by Md. Golam Rashed 02 Jan '12

02 Jan '12

As analysis takes quite some time, it'll be helpful if there is a progress bar or progressing % showing. example: progress 1% progress 2% progress 3% . . . . . . progress 15% . . etc. this feature will really help large problem. is it possible to integrate this feature into sfepy??? Thanks

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best HPC platform?
by Md. Golam Rashed 25 Dec '11

25 Dec '11

What is the best platform for High performance Computing? windows is long gone, i think. So only Unix and Linux stand the chance. As you people are expert here on Computational Science, Can you tell that expertise on what platform will strongly back my interest on Computational mechanics??

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Pythonxy package popularity voting!
by Md. Golam Rashed 23 Dec '11

23 Dec '11

Pythonxy developers are conducting a voting to determine which packages are popular, and which new packages are to be included in the new pythonxy release. cast your vote here- http://www.doodle.com/rzssq2dbnus4a34r exclusively vote on pyparsing!

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Exporting to PDF
by Torsten Bronger 22 Dec '11

22 Dec '11

Hallöchen! What is the best way to export VTKs to PDF? The GUI window of SfePy's viewer (the MayaVi 4.0.0 window) can write nicely to PNG but when it comes to PDF, the resulting file is unreadable by Evince of Acrobat Reader. Similarly, the SVGs cannot be imported into Inkscape, and the EPS files are not accepted by GhostScript. Thus, all vector formats seem to be broken. Is there another way? Tschö, Torsten. -- Torsten Bronger Jabber ID: torsten...(a)jabber.rwth-aachen.de or http://bronger-jmp.appspot.com

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Python 3 compatibility
by Robert Cimrman 21 Dec '11

21 Dec '11

FYI: I have created a new issue [1] for discussing the Python 3 compatibility. Comments are more than welcome! r. [1] http://code.google.com/p/sfepy/issues/detail?id=162

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Getting tension for each finite element
by Torsten Bronger 20 Dec '11

20 Dec '11

Hallöchen! I used linear_elasticity.py as a starting point for simulating stress in thin silicon layers. My manual meshing worked, and the displacements seem to be calculated properly. However, how do I get the stress in each element? I need it for determining where the layer will break. The original node positions of the mesh are totally relaxated (no tension anywhere). Tschö, Torsten. -- Torsten Bronger Jabber ID: torsten...(a)jabber.rwth-aachen.de or http://bronger-jmp.appspot.com

1 0

post processing error
by Md. Golam Rashed 15 Dec '11

15 Dec '11

The following message occurs while running the post processing module - $ postproc.py its2D.vtk ******************************************************************************** WARNING: Imported VTK version (5.8) does not match the one used to build the TVTK classes (5.6). This may cause problems. Please rebuild TVTK. ******************************************************************************** Traceback (most recent call last): File "./postproc.py", line 8, in <module> from sfepy.postprocess import Viewer, get_data_ranges, create_file_source File "c:\src\sfepy\sfepy\postprocess\__init__.py", line 1, in <module> from viewer import Viewer, ViewerGUI File "c:\src\sfepy\sfepy\postprocess\viewer.py", line 33, in <module> from sfepy.postprocess.utils import mlab File "c:\src\sfepy\sfepy\postprocess\utils.py", line 14, in <module> mlab = mayavi.mlab AttributeError: 'module' object has no attribute 'mlab'

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ANN: SfePy 2011.4
by Robert Cimrman 09 Dec '11

09 Dec '11

I am pleased to announce release 2011.4 of SfePy. Description ----------- SfePy (simple finite elements in Python) is a software for solving systems of coupled partial differential equations by the finite element method. The code is based on NumPy and SciPy packages. It is distributed under the new BSD license. Home page: http://sfepy.org Mailing lists, issue tracking: http://code.google.com/p/sfepy/ Git (source) repository: http://github.com/sfepy Documentation: http://docs.sfepy.org/doc Highlights of this release -------------------------- - cython used instead of swig to interface C code - many terms unified thanks to new optional material term argument type - updated Lagrangian formulation for large deformations - automatic generation of gallery of examples For more information on this release, see http://sfepy.googlecode.com/svn/web/releases/2011.4_RELEASE_NOTES.txt (full release notes, rather long and technical). Best regards, Robert Cimrman and Contributors (*) (*) Contributors to this release (alphabetical order): Vladimír Lukeš, Matyáš Novák

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SfePy December 2011