GID 16.0.6 crashes when splitting hexahedral meshes

[Hamed]

Hi Escolano,

I hope this message finds you well.

I have a model where I can't mesh it properly around the opening, so I partitioned it into three parts and after meshing, I want to split hexahedral meshes into tetrahedral ones. This doesn't happen when I want to split tetrahedral meshes. I have attached my model.

Many thanks for your time, and kind consideration.

Best regards,
Hamed

[escolano]

I don't know what do you mean by "I can't mesh it properly around the opening"
How is the mesh that do you want?

You can generate a mesh of your model:
- unstructured (tetrahedra only)
- semi-structured in Y-direction for the 3 volumes
- semi-structured the central volume and fully structured the lateral ones.

And about split hexahedra to tetrahedra you can do it directly in the mesh with
Mesh->Edit mesh->Split elements->Hexahedra to tetrahedra
and select the elements

original_mesh.png (51.6 KiB) Viewed 187 times

->

mesh_splitted_to_tetra.png (75.44 KiB) Viewed 187 times

But this is not a good idea, if do you want tetrahedra simply set this as the element desired by the volumes
Mesh->Element type->Tetrahedra

mesh_semi-structured_tetr.png (92.27 KiB) Viewed 187 times

and in fact it could be better to mesh all unstructured (that is the default)
Mesh->Reset mesh data
and generate a new mesh

unstructured_tetra.png (76.24 KiB) Viewed 187 times