Hello, I am currently working on a problem describing surface elasticity in two dimensions. Thus, dim=2 and spacedim=3. The boundary of the triangulation, where surface elasticity is defined, is described in dim=1 in spacedim=3. I extract the boundary triangulation with "extract_boundary_mesh". To describe the surface-elasticity, I need Vectors at the quadrature-points of the boundary, that are tangential to the boundary. In total, due to quadratic shape functions, I have 3 quadrature points on each line-element. Is here any function like fe_values.get_tangential_vectors()? Alternatively, vectors normal to the boundary would also be helpful. However, when the boundary is dim=1 a unique normal vector is not defined!
Does anyone have an idea how I could resolve the issue? Thanks a lot, Ludwig -- 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/d5958fb5-b5c6-4378-a23d-f7b56f66b671%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
