I've been using FreeCAD for a little while to model geometry for Salome - Openfoam, and recently attempted to utilise the FreeCAD FEM workbench for FEA linear stress analysis. Using the tutorials I have been able to build a case, write an input file and run the case. However the solver gets to the'
271.6: CalculiX done without error!
271.6: Loading result sets...
'stage and stops. There is a .frd file created at 7kb in size only.
The input file appears valid as I can run calculiX on the file externally to FreeCAD and it completes + writes an .frd file (20+Mb).
I'm on CAElinux (ubuntu) using FreeCAD 18 Build: 16131.
Has anyone experienced this or could point me in the direction to look for a solution?
I have not at this stage confirmed results from the external CalculiX run as I do not have a .frd post-processor aside from FreeCAD,
A follow up question: is it possible to load a .frd file created externally into FreeCAD for post processing?
The Following is the error log from FreeCAD 19:
PySide2.QtCore.QRegExp('\*ERROR.*\n\n', 1, 0)
CalculiX done without error!
We will load the ccx frd and dat result file.
Read ccx results from frd file: /tmp/femuhooy5mc/FEMMeshNetgen.frd
FEM: No nodes found in Frd file.
Problem on frd file import. No nodes found in frd file.
Traceback (most recent call last):
File "/tmp/.mount_FreeCANBCX2n/usr/Mod/Fem/femguiobjects/_ViewProviderFemSolverCalculix.py", line 308, in calculixFinished
File "/tmp/.mount_FreeCANBCX2n/usr/Mod/Fem/femtools/ccxtools.py", line 1110, in load_results
File "/tmp/.mount_FreeCANBCX2n/usr/Mod/Fem/femtools/ccxtools.py", line 1119, in load_results_ccxfrd
importCcxFrdResults.importFrd(frd_result_file, self.analysis, 'CCX_')
File "/tmp/.mount_FreeCANBCX2n/usr/Mod/Fem/feminout/importCcxFrdResults.py", line 192, in importFrd
UnboundLocalError: local variable 'res_obj' referenced before assignment
OS: Ubuntu 16.04.6 LTS (XFCE/xubuntu)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.17646 (Git) AppImage
Build type: Release
Python version: 3.7.3
Qt version: 5.12.1
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: English/United States (en_US)
(edit to add error log and installation details)