stresses about pymapdl HOT 24 CLOSED

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Thank you very much! But I'd rather need to learn how to display/extract the stresses and other results myself as I will need to do that more frequently with various ANSYS models.
I am developing a predictive probabilistic tool that evaluates thermal fields, plastic strains, von Mieses stresses etc. and transforms these into probabilities of failure, lifetimes etc.
Don't you plan to write PlotStress and PlotStrain methods similiar to the PlotDisplacement one?
Thank you

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test_pyansys.zip

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OK, here is a simple example. Thank you!

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The sample runs with the following code

from pyansys import Reader

result = Reader.ResultReader('test_pyansys.rst')
result.LoadCDB('test_pyansys.cdb')
result.GetTimeValues()
result.GetResult(0)
result.PlotDisplacement(0)

With this from VTK

Aside from renaming PlotDisplacement to PlotResult, is there anything else that needs to be done? Were there more results in the result file?

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Hi! Thanks for a very useful script! Do you know how to extract element solution data? How to get a pointer similar to ptrNSLl, but to the element solution? Many thanks!

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I'll take a look at tonight and add a way to extract element solution data.

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Just found it - it is the next pointer after nodal results, ptrESL :)

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Good find! Would you like to contribute your code?

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Thank you very much for this sript. I have a problem to read displacement solution data with a rst file containing a large number of sets--> the Reader give an error of overflow.
I put the error below:
Warning (from warnings module):
File "C:\Python27\lib\site-packages\pyansys\Reader.py", line 352
f.seek(((self.rpointers[rnum] + 12)*4)) # item 12
RuntimeWarning: overflow encountered in int_scalars

Traceback (most recent call last):
File "C:\Users\jbrunel\Downloads\Bureau_24032016\TEI\2Faces\tempe.py", line 29, in
fobj.PlotDisplacement(300)
File "C:\Python27\lib\site-packages\pyansys\Reader.py", line 246, in PlotDisplacement
result = self.GetResult(rnum, True)
File "C:\Python27\lib\site-packages\pyansys\Reader.py", line 352, in GetResult
f.seek(((self.rpointers[rnum] + 12)*4)) # item 12
IOError: [Errno 22] Invalid argument

(fobj.rpointers[300]+12)*4

Warning (from warnings module):
File "C:\Users\jbrunel\Downloads\Bureau_24032016\TEI\2Faces\tempe.py", line 2
"""
RuntimeWarning: overflow encountered in int_scalars

Some ideas?
Thanks!!

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You can find the rst file at the link : www.transfernow.net/296e01e09pgu

Sorry for the size of the file (2Gb)!!!)

the '.py' file:

# Load the reader from pyansys
from pyansys import Reader
from ANSYScdb import CDB_Reader
from ANSYScdb import PythonReader
# Create result reader object
fobj = Reader.ResultReader('disc.rth')
temp = fobj.GetResult(300)

If you modify the rnum at 299 is ok, the problem occurs when rnum is greater than 300!

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I'm ready to work on this project again, but I can't seem to find the database I downloaded. Could you please upload it again?

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rostar,

I've added stress and geometry loading to release 0.16 and see the new documentation.

Let me know if it works out. It's not on PyPi yet, so you'll have to download and install from source here from GitHub. Let me know if it works out.

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Hi akazynski,

if I run

python setup.py install

the process stops with the following error:
c1 : fatal error C1083: Cannot open source file: 'pyansys/cython/reader.c': No such file or directory

If I clone from git, I get this on import

from pyansys import _parsefull

ImportError: cannot import name _parsefull

Very much appreciate your help!

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Forgot to include reader.c, sorry about that!

I've just added it and tested the install on python 2.7 on Linux by cloning to a virtual environment and testing it there, so it will work from GitHub.

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Thank you.
Unfortunately, python now crashes on calling
pyansys.ResultReader(rstfile)

"python.exe has stopped working"
... no futher relevant details ...

I am using Windows 10 but I will install Ubuntu 16 in virtualbox to check whether its platform dependent.
R

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... with python 2.7 from Anaconda

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Just ran it on windows 7 and it's indeed a problem. I'll fix it and post the updated code. Thanks for testing this out.

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Fixed Windows bugs with Python 2 and 3 and uploaded it to PyPi.

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Great! Works perfectly.
Thank you very much.

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