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EDIT MESH: Edit disconnected mesh

Hello there!

I'm currently working on my Bachelor's Final Project. I thought it would be very easy to mesh it out and run my test, but I've found the following problem: some disconnections in my 3D mesh (Figure1).

I've solved it by remeshing but I would like to know if there is a more efficient way to do it. How can I edit the mesh to fix that disconnection?

Thank you so much!

Figure 1:

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HyperMesh

v2022

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Jason_Craanen

There is not much to really do to fix a disconnected 3d hex mesh efficiently.

If the mesh is disconnected, but has the correct number of nodes simply equivalence. I usually start with a very low tolerance and bump up making sure to keep it less than the smallest element size.

If the nodes do not match, you might need to recreate a new patch using the Hex tool

Best is to make sure the hex mesh is properly created in the beginning.

Refer to these resources on hex meshing.

Youtube

https://www.youtube.com/@AltairHowTo/search?query=hex

Siam García

There is not much to really do to fix a disconnected 3d hex mesh efficiently.

If the mesh is disconnected, but has the correct number of nodes simply equivalence. I usually start with a very low tolerance and bump up making sure to keep it less than the smallest element size.

If the nodes do not match, you might need to recreate a new patch using the Hex tool

Best is to make sure the hex mesh is properly created in the beginning.

Refer to these resources on hex meshing.

Youtube

https://www.youtube.com/@AltairHowTo/search?query=hex

Hi Jason!

Thank you so much for your help.

I tried your solution but 0 nodes found or were equivalenced.

A bit more info: I meshed the helmet using Solid Map after divided it in smaller solids to make it mappable. Then, that disconnections appeared.

Any ideas?

Thans again!

Jason_Craanen

Hi Jason!

Thank you so much for your help.

I tried your solution but 0 nodes found or were equivalenced.

A bit more info: I meshed the helmet using Solid Map after divided it in smaller solids to make it mappable. Then, that disconnections appeared.

Any ideas?

Thans again!

You might need to increase your search tolerance until it finds the disconnection nodes, keeping care to make sure the tolerance is less than element edge size.

If you are using the Solid Map tool, the adjacent attached solids will maintain connectivity.

If you are using the Hex Tool to create drag sections, you may need to equivalence at the end.

Siam García

You might need to increase your search tolerance until it finds the disconnection nodes, keeping care to make sure the tolerance is less than element edge size.

If you are using the Solid Map tool, the adjacent attached solids will maintain connectivity.

If you are using the Hex Tool to create drag sections, you may need to equivalence at the end.

It works! Thank you so much!