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
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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.
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Torsten Bronger Jabber ID: torsten...(a)jabber.rwth-aachen.de
or http://bronger-jmp.appspot.com
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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
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??
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!
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
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
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'
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
