Hello!
It's a great tool you built there! I'd like to use it for some kind of
topology optimisation.
Is there an "idiomatic" way to set the material parameters of individual
nodes?
Thank you very much!
JonnyB
Hello,
We are trying to use sfepy for FEM analysis.
However, we have a couple of queries about sfepy.
1. We couldn't find any examples for 1-D line element modelling, although
it says so in the description. Can sfepy be used for it or just for plates
& shells?
2. According to the manual, the outputs are in the form of stresses &
strains. Is there any possible way to directly get results in the form of
bending moment, shear force, reactions etc. ?
We would really appreciate your support …
[View More]response at the earliest
convenience.
Thank you
Regards
Aanchal Jasuja
[View Less]
Hello,
I am trying to reproduce an example from the documentation to create an animation.
(Windows10, Anaconda python 3.6.10 h9f7ef89_2, sfepy 2020.2 py36h7725771_0 conda-forge)
Inside a Jupyter-notebook, I have done:
!copy c:\ProgramData\Anaconda3\lib\site-packages\sfepy\examples\diffusion\time_poisson.py .
!c:\ProgramData\Anaconda3\python.exe c:\ProgramData\Anaconda3\lib\site-packages\sfepy\script\simple.py time_poisson.py -s
#everything OK
#I can view each individual vtk
#But I cannot …
[View More]create the animation
!c:\ProgramData\Anaconda3\python.exe c:\ProgramData\Anaconda3\lib\site-packages\sfepy\script\postproc.py c:\ProgramData\Anaconda3\Scripts\NOTEBOOKS\cylinder.??.vtk -a mov
Traceback (most recent call last):
File "c:\ProgramData\Anaconda3\lib\site-packages\sfepy\script\postproc.py", line 513, in <module>
main()
File "c:\ProgramData\Anaconda3\lib\site-packages\sfepy\script\postproc.py", line 503, in main
view = view_file(filenames, filter_names, options)
File "c:\ProgramData\Anaconda3\lib\site-packages\sfepy\script\postproc.py", line 281, in view_file
domain_specific=options.domain_specific)
File "c:\ProgramData\Anaconda3\lib\site-packages\sfepy\postprocess\viewer.py", line 919, in call_mlab
offscreen=self.offscreen)
File "c:\ProgramData\Anaconda3\lib\site-packages\sfepy\postprocess\sources.py", line 68, in create_file_source
return GenericFileSource(filename, **kwargs)
File "c:\ProgramData\Anaconda3\lib\site-packages\sfepy\postprocess\sources.py", line 212, in __init__
self.read_common(self.filename)
File "c:\ProgramData\Anaconda3\lib\site-packages\sfepy\postprocess\sources.py", line 218, in read_common
self.mesh = Mesh.from_file(filename)
File "c:\ProgramData\Anaconda3\lib\site-packages\sfepy\discrete\fem\mesh.py", line 220, in from_file
mesh = io.read(mesh, omit_facets=omit_facets)
File "c:\ProgramData\Anaconda3\lib\site-packages\sfepy\discrete\fem\meshio.py", line 535, in read
fd = open(self.filename, 'r')
OSError: [Errno 22] Invalid argument: 'c:\\ProgramData\\Anaconda3\\Scripts\\NOTEBOOKS\\cylinder.??.vtk'
#Same problem with (remplacing ?? by *)
!c:\ProgramData\Anaconda3\python.exe c:\ProgramData\Anaconda3\lib\site-packages\sfepy\script\postproc.py c:\ProgramData\Anaconda3\Scripts\NOTEBOOKS\cylinder.*.vtk -a mov
#N.B. Python has no problem to find ffmpeg
!ffmpeg -help
#is OK
#same problem when I run the command from the terminal (cmd window)
c:\ProgramData\Anaconda3\python.exe c:\ProgramData\Anaconda3\lib\site-packages\sfepy\script\postproc.py c:\ProgramData\Anaconda3\Scripts\NOTEBOOKS\cylinder.*.vtk -a mov
*meshio.py, line 535, fd = open(self.filename, 'r')
does not want to open self.filename; there is a problem with the generic filename extraction ?*
Any help appreciated.
F.K.
P.S. Of course, when I run python postproc.py -a mov on a specific file (say cylinder.00.vtk),
I get an error:
File "postproc.py", line 508, in main
view.save_animation(options.filename)
File "c:\ProgramData\Anaconda3\lib\site-packages\sfepy\postprocess\viewer.py", line 345, in save_animation
self.set_step.step = step
AttributeError: 'Viewer' object has no attribute 'set_step'
[View Less]