Dear Lauren As Markus suggests, if you are only interested in transferring the stress state and the problem of interest is linear elasticity then the easiest is simply to reconstruct the stress from the nodal displacement and the resulting strain field at the quadrature points of the new mesh.
If you really had internal variables related to some inelastic process that had their own evolution rule (e.g plasticity, damage, visocelasticity, etc.) then you have to do something different. If this is the case, let me know as I have some routines for this but they need completing and checking. Regards Andrew On 01.02.2011, at 22:35, Lauren Ferguson wrote: > > I'm working on a code very similar to step-18 and I want to refine the > mesh after every few timesteps. I can use SolutionTransfer to transfer the > solution vector, but the residual stresses stored in > quadrature_point_history are associated with quadrature points, not dofs, > so I don't see how SolutionTransfer or VectorTools::interpolate could be > used to interpolate this vector on the new mesh. (I'm using bilinear > finite elements and Gaussian quadrature.) Any ideas on how to do this? > Thanks! > > Lauren > _______________________________________________ > dealii mailing list http://poisson.dealii.org/mailman/listinfo/dealii _______________________________________________ dealii mailing list http://poisson.dealii.org/mailman/listinfo/dealii
