Improve Tet mesh quality - Cube with multiple spheres
Improve Tet mesh quality - Cube with multiple spheres
(OP)
Hi All,
I am working on modelling of a cube with multiple spheres which induces extremely complex geometry.
Using free mesh provided in Abaqus, I am able to generate the tetrahedral mesh (C3D4 element


However, it is very bad quality mesh, there are many distorted elements (~500 element). I think it is impossible to use Mesh Edit to manually edit each element.
I've tried Virtual Topology. It doesn't work well. And the geometry is too complex for Partitioning.
Could you please suggest any solution to obtain a quality mesh for this geometry?
In case you are interested, I upload .sat file of this model.
Thanks.
I am working on modelling of a cube with multiple spheres which induces extremely complex geometry.
Using free mesh provided in Abaqus, I am able to generate the tetrahedral mesh (C3D4 element


However, it is very bad quality mesh, there are many distorted elements (~500 element). I think it is impossible to use Mesh Edit to manually edit each element.
I've tried Virtual Topology. It doesn't work well. And the geometry is too complex for Partitioning.
Could you please suggest any solution to obtain a quality mesh for this geometry?
In case you are interested, I upload .sat file of this model.
Thanks.





RE: Improve Tet mesh quality - Cube with multiple spheres
RE: Improve Tet mesh quality - Cube with multiple spheres
I did run a test and it seems to be good although with element distortion warning.
Btw, Can you explain more about "be careful with linear tets"?
I still don't understand your warning about C3D4 element?
Thanks.
RE: Improve Tet mesh quality - Cube with multiple spheres
For realistic results you should use parabolic tets.
RE: Improve Tet mesh quality - Cube with multiple spheres
I thought linear tet is only stiff for bending case.
But I did a quick search and linear tet certainly is too stiff as you said.
Thank you.