HI Amit, Focusing on the question of mesh generation, it is possible to generate an automated HEX mesh using Gmsh, but since that mesh is based on Delaunay based approaches, quality may not be very good. See discussions in this thread: https://groups.google.com/g/dealii/c/o_xXAur2Ao8/m/vlAjFs5ECQAJ Alternatively, if you just want to mesh this specific geometry, you could also get a structured (good looking) HEX mesh using the transfinite mesh approach available in Gmsh.
In my limited knowledge, cf. [ https://www.dealii.org/current/doxygen/deal.II/group__simplex.html], it seems that the simplex support is still experimental. As mentioned in the link, it might be helpful to look at the tests/simplex folder. The developers can maybe provide more precise answer here. Best, Paras On Fri, Jun 24, 2022 at 2:19 PM Amit Singh <amit112a...@gmail.com> wrote: > 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 > > > -- > The deal.II project is located at http://www.dealii.org/ > For mailing list/forum options, see > https://groups.google.com/d/forum/dealii?hl=en > --- > You received this message because you are subscribed to the Google Groups > "deal.II User Group" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to dealii+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/dealii/cd269727-64aa-4079-b261-657e9dc0248an%40googlegroups.com > <https://groups.google.com/d/msgid/dealii/cd269727-64aa-4079-b261-657e9dc0248an%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to dealii+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/dealii/CAEU6zmT04YkzctpkzYuJVa7d%3D31G1K8qAo1Rm6EMkZuteVGbng%40mail.gmail.com.
