Search found 131 matches

by OakLD
Mon Jan 15, 2024 8:08 pm
Forum: FEM
Topic: FEM Heat Transfer material not assigned
Replies: 11
Views: 6708

Re: FEM Heat Transfer material not assigned

To complete my thread, I had this post in mind (finally found it in my history): viewtopic.php?t=26946. So it's 5 years old and concerns version 0.17 and should not be a factor in my problems.
by OakLD
Mon Jan 15, 2024 7:55 pm
Forum: FEM
Topic: FEM Heat Transfer material not assigned
Replies: 11
Views: 6708

Re: FEM Heat Transfer material not assigned

OK, it's most likely the version. In the 0.21.2 it works without any issues, works as a charm. As I already wrote, I've seen somewhere a forum post where a bug was identified for two materials in one solution and supposedly fixed later. So I think 0.21.1 is affected. FCthermalAnalysis_20240115_20550...
by OakLD
Mon Jan 15, 2024 7:04 pm
Forum: FEM
Topic: FEM Heat Transfer material not assigned
Replies: 11
Views: 6708

Re: FEM Heat Transfer material not assigned

Unfortunately, same result.
FCcompound2_20240115_200104.png
FCcompound2_20240115_200104.png (110.26 KiB) Viewed 5220 times
I've also tested OpenSUSE stock 0.20.2 in the meanwhile, but it's crashing on triggering Netgen.
I've downloaded 0.21.2 and a weekly build and try those versions and report.
by OakLD
Mon Jan 15, 2024 6:56 pm
Forum: FEM
Topic: FEM Heat Transfer material not assigned
Replies: 11
Views: 6708

Re: FEM Heat Transfer material not assigned

Your geometry is below the Analysis container in the tree. You should delete the whole container and recreate it to make sure that it's below the geometry. Then it should work with Part Compound. The compound is at the end, because it was created after the Analysis container (...because I modified ...
by OakLD
Mon Jan 15, 2024 6:29 pm
Forum: FEM
Topic: FEM Heat Transfer material not assigned
Replies: 11
Views: 6708

Re: FEM Heat Transfer material not assigned

I think that you should use Part Compound instead of Part Fuse (Union) so that individual parts can be selected for material assignment. More about this here: https://wiki.freecad.org/FEM_Geometry_Preparation_and_Meshing#Assembly_geometries Unfortunately, the result is absolutely identical - empty ...
by OakLD
Mon Jan 15, 2024 12:48 pm
Forum: FEM
Topic: FEM Heat Transfer material not assigned
Replies: 11
Views: 6708

Re: FEM Heat Transfer material not assigned

... Just right-click on it and select Clear FEM mesh . Thank you for your point, will do next time :-). I think that you should use Part Compound instead of Part Fuse (Union) so that individual parts can be selected for material assignment. More about this here: https://wiki.freecad.org/FEM_Geometr...
by OakLD
Sun Jan 14, 2024 9:07 pm
Forum: FEM
Topic: FEM Heat Transfer material not assigned
Replies: 11
Views: 6708

Re: FEM Heat Transfer material not assigned

NewJoker wrote: Sun Jan 14, 2024 8:57 pm Can you share the .FCStd file ?
Sure, here it is. Mesh removed to reduce the size.
Soil_FEM_calculations.FCStd
(42.59 KiB) Downloaded 17 times
I have also the original file with results (not attached, not sure if it would help and it's large due to the result set).
by OakLD
Sun Jan 14, 2024 8:54 pm
Forum: FEM
Topic: FEM Heat Transfer material not assigned
Replies: 11
Views: 6708

FEM Heat Transfer material not assigned

Hello community, I have a simple model with FEM analysis, that worked fine about month back. I needed to change a one thickness in the model and I am unable to run the calculation now. I tried number of changes, like creating whole new analysis, reasigning materials number of times, remeshin number ...
by OakLD
Sun Jan 14, 2024 7:02 pm
Forum: FEM
Topic: "No frd result file found"; imported gmsh mesh
Replies: 5
Views: 3502

Re: "No frd result file found"; imported gmsh mesh

NewJoker wrote: Mon Jun 05, 2023 5:11 pm
CopperGenie wrote: Mon Jun 05, 2023 4:48 pm Does it matter what order I have the material, constraints, and mesh in my Analysis container?
This doesn't matter but it might be important how the geometry is positioned in the tree with respect to the Analysis container.
Any details on what would be the actual the rules to keep?
by OakLD
Tue May 17, 2022 9:21 am
Forum: Help on using FreeCAD
Topic: Arch WB - Heat Analysis??
Replies: 4
Views: 945

Re: Arch WB - Heat Analysis??

Hi,

if this is even possible in FC, there can be potentially two places to look:
  • some add on macro does some basic analytical calculations based on your walls and windows
  • FEM analysis with FEM WB