How to reduce the number of elements in a mesh

LauraMartinFrances

Hi,

my work is related to test collision areas in biological tissues such as tooth enamel.

I created the surface of the dental tissues and imported them into Hypermesh. Following, I generated the 3D models filling those with first order tetrahedral elements. I ended up with a 13 million meshes (adding all the tissues).

I am wondering if it is possible to reduce the numer of elements in the 3D model directly in Hyperworks/Hypermesh.

Thanks a lot for your help

Michael Herve

Hello @LauraMartinFrances ,

sure, you can use Tetra Remesh in 3D ribbon to remesh an existing tetra mesh:

You will have access to some options including element size to remesh:

Hope that helps,

Michael

Michael Herve

Hello @LauraMartinFrances ,

sure, you can use Tetra Remesh in 3D ribbon to remesh an existing tetra mesh:

You will have access to some options including element size to remesh:

Hope that helps,

Michael

LauraMartinFrances

Hi Michael,

thank you very much for your quicke reply (sorry for my late reply but I wasn't able to log in,now fixed it).

Sorry I forgot to mention that although I was running the 2023 version before I had to go back to 2019.1 for some issues with the meshes. I can extend on that in another communication. Therefore, at the moment I am stuck with the 2019.1 version, is it possible to reduce the numer of elements in the 3D model in this version?

Thank you very much for your help

Kind wishes,

Michael Herve

Hello @LauraMartinFrances ,

tetra remesh is also available fin HyperMesh 20189 (should be in Mesh panel, or Mesh drop down menu).

That said, please open another thread, or open a support case) so that one of my colleaguie or myself can support you with your current blowking points with 2023

Best Regards,

Michael

LauraMartinFrances

Dear Michael,

thank you very much for your reply.

I checked on the 2019.1 version but I am not able to find anything similar to what you suggested.

When in the Tetra remesh window I select 3D elements and displayed (screenshots attached) but I do not get the average size so I am not able to modify them. Instead if I click on the remesh it actually ends up with more triangles because it does a refinement or similar.

I would very much appreciate it if you could provided some guidance

Thnak you

Michael Herve

Hello @LauraMartinFrances ,

you need to go to TetraMesh Parameters in the panel to change your target size.

Again I sincerely recommend you upgrade to a more recent version, please contact us through regular channel support if you need our assistance to remove any blocking point

Best Regards,

Michael