Hi Francesca, As for the continuous enrichment part of X-FEM (i.e. crack-tip) you can look into FE_Enriched <https://www.dealii.org/developer/doxygen/deal.II/classFE__Enriched.html> class and the paper with implementation details. Note the key difference in point-of-view: FE_Enriched does cell-based enrichment, i.e. all nodes will be enriched the same way with given function(s). One can still mix things with FE_Nothing to have different enrichment with different parts of the domain to get conforming FE space. This PR <https://github.com/dealii/dealii/pull/6277> from my student will make it easier to do. For the discontinuous part (Heaviside) FE_Enriched might be ok as well, but I guess in this case construction of quadrature rule and integration is the major PITA.
Regards, Denis On Wednesday, May 23, 2018 at 11:47:52 AM UTC+2, Francesca Fantoni wrote: > > Good morning everyone, > I am currently working on crack tracking algorithms in the context of > Linear Elastic Fracture Mechanics for three dimensional problems. > I was wondering if in deal.ii there exists any code gallery related to > the implementation of quarter-point elements and the computation of SIFs > along the Crack front. > Alternatively if there exists some code related to the use of X-FEM for > fracture mechanics. > I am not able to find any code related to these problems...I found some > codes related to the use of the phase field method in fracture mechanics, > but we are interested in using a different approach to model the presence > of the crack. > Could anyone kindly guide me? > Thanks very much > Francesca > -- 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. For more options, visit https://groups.google.com/d/optout.
