Thank you for your advice. I created the shell model in Rhino and exported it as a STEP file, but it is not working properly. Could you please help me identify what might be the problem?
shell.pmx (263.9 KB)
There are some flaws here:
You can still try meshing - it should work. Just watch out for elements with poor quality (use visual inspection + Model → Element → Element Quality).
I cleaned up ur surfaces and just meshed with gmesh and re combined with quasi structured quad. Lots of potential improvement to the mesh but it may give some ideas on one way forward
shellcleansurfaces.pmx (672.4 KB)
Thank you for your advice.
Sorry to bother you again.
shell.ver2pmx.pmx (1.4 MB)
I’m trying to add thickness using Thicken Shell Mesh, but for some reason it doesn’t work.
The mesh quality is excellent, so I feel like I’m very close to solving the problem.
Even in Abaqus offset (thickening) fails in the problematic region discussed at the beginning:
Negative jacobians still there:
You should eliminate them first (by correcting the issues with the geometry and changing the meshing algorithm if needed).
Try with the cleaned (simplified) model:
shellcleansurfaces mod.pmx (2.0 MB)