Hello, I am trying to apply Periodic Boundary Conditions on a cubic sample in all the three directions and then compress it - compression of an RVE. The displacement I need to give is:[image: Screenshot 2021-10-20 204440.png] For this, I first applied PBC using DoFTools::make_periodicity_constraints and then added displacement to the corresponding DoFs (selected them using DoFTools::extract_boundary_dofs) using constraints.set_inhomogeneity.
I have a few questions regarding this - 1. Am I doing this correct? 2. Also, do I need to specifically restrict rigid body motions? If yes, what is the best way to do this? I tried by fixing some nodes, but it is becoming too artificial and causing huge distortions at higher strains. Thanks in advance, Raghunandan. -- 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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/dealii/2c276492-7aff-4833-9ce3-8c7c02038f0an%40googlegroups.com.
