Tutorial on 3D geometries

Dear all,

Does anybody know about any tutorial/examples in 3D problems?
I am especially interested in learning how to impose the boundary conditions when the problem is 3D.

Thanks in advance!

I have made a tutorial for DOLFINx, which includes 3D problems such as: Hyperelasticity — FEniCSx tutorial
Using the GMSH Python API to generate complex meshes | Jørgen S. Dokken
If you are interested in old dolfin, the documentation features some 3D examples as well:

There is no fundamental difference between enforcing boundary conditions on a 2D or 3D geometry in DOLFIN/DOLFINx

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That’s great. Thank you very much for the speedy response!