1. Can you please clarify which input relates to which out puts ?
See the names, are the same in STKO and OpenSees
I assume the crack relates angle of concrete (E5). Vertical element will not have sigma 12 or epsilon 12.
Since this elements uses the FSAM material, that supports up to 2 orthogonal cracks, the panel_crack output is a 2x2 tensor (3 components in voigt notation), whose eigenvalues are the crack-strain orthogonal to the cracks, and its eigenvectors are the crack directions.
panel_crack = c1*outer(v1, v1) + c2*outer(v2,v2).
In this way you can plot it using the vector plot, as you would plot any tensor quantity:
- SFI_1.png (69.76 KiB) Viewed 2411 times
I am also guessing the strain is only one for both steel and concrete as it assumes perfect bonding(E6)?
Yes
What happened to aggregate interlocking ?
it should be there, I did a test on the webinar series we did about the SFi_MVLEM_3D and it works:
- SFI_2.png (75.29 KiB) Viewed 2411 times
2. I am trying to extract stress-strain relationship from the database and draw graph in the excel spread sheet and found some great example in this forum. I installed both tkinter and openpyxl but still getting the error message as below. I even copied it to STKO python package folder but still does not appear to work. Please let me know what I am missing ?
The python embedded in STKO does not support tk (we use PySide2 for GUI). Are you sure you need tkinter?
3. Lastly, I want to use STKO platform rather than h5py. Can you please provide some Python code for accessing mpco data base for say, steel stress & strain relationship as an example ? Once I can get an idea, I should be able to extract all data into excel file if openpyxl is working.
Check our webinars on the PythonAPI, there are some examples