Hi.
I am considering deal.ii for some nonlinear elasticity and fracture analysis.
From
what I read in the documentation, deal.ii supports hexahedral elements
much better than tetrahedral elements. My geometry looks as shown in the
attached picture. The actual geometry is a boolean difference of a big
sphere and a small sphere. But to exploit symmetry I am considering only
one-eighth of the sphere.
I am struggling
to create a mesh that has only hexahedral elements. The best I was able
to attain was a vast majority of the elements were hexahedral but there
were some prism elements at the poles.
Therefore,
my question is can I use prism elements in deal.ii? (Or if there is a
clever way to mesh this geometry with just hexahedral elements kindly
let me know.)
Regards,
Amit