Hi Yves, thanks for the response. After your hint that there are two different types of augmentation I understand both coulomb_num.pdf and 2007_HR_contact.pdf better and my previous question can be considered as answered. On the question if I really need the Hansbo augmentation I can't give any answer yet. In my case I have contact between two elastic bodies with non-conforming meshes. For the contact condition I search for contact nodes on both sides (interchanging master and slave) so I get a number of multiplier variables which is more "rich" than the grid on each separate contact surface. I am not sure if in this case the inf-sup condition still holds. Anyway I am going to experiment with this in the next days.
Regarding your remark about the new brick system, I would definitely prefer to work with it instead of the old one. After your mail I focused my intents on converting my model to the new system. I have tried to create a very simplified (frictionless) version of the Coulomb_friction brick for the new brick system. As soon as I make it fundamentally work, I will publish it here for further discussion and development. For the moment, I miss any example of a non-linear problem in the new brick system. Are there such examples that I 've overlooked? For the future I would also be very interested in the development of contact problems in combination with large displacements/deformations. Regards Kostas _______________________________________________ Getfem-users mailing list [email protected] https://mail.gna.org/listinfo/getfem-users
