3D tetra mesh question

Rahul_P1

Hi Everyone,

I'm currently working on my research on modeling tubercular bones. I've already finished 2D meshing and trying to generate 3D tetra mesh recently. However, when I do it, the program always stop after generate about 2% of the element. I checked the free edges, there's none. And when I 'check 2D mesh' in the tetramesh panel, it says 'no shell elems selected'. Can anyone please tell me what's the problem?

Thanks a lot!

 

 

Ouli

Rahul_P1

Hi Oulijin,

As explained above the tetramesh panel should not be used for such a model with extremely complex topology / geometric features.

You can achieve a good tetramesh for all purposes, for this model, using the Shrink Wrap panel. The shrink wrap can generally be used as a quick mechanism to generate solid meshes.

1. Go to 2D > Shrink Wrap panel.
2. Here there is an option generate solid mesh – this will produce an all-hexa or all-tetra mesh based on the selected elements or geometry.
3. Make sure the generate solid mesh checkbox is active
4. This will expose a tet collapse input, please try several input values depending on your quality requirements.
5. Below is a tetramesh for your model generated with element size of 100 and min tet collapse of 0.1.

Rahul_P1

It works! Thanks a lot!