A mixed formulation of mortar-based contact with friction
Please cite this item using this persistent URLhttp://hdl.handle.net/11693/21061
Computer Methods in Applied Mechanics and Engineering
- Research Paper 
A classical three-field mixed variational formulation of frictionless contact is extended to the frictional regime. The construction of the variational framework with respect to a curvilinear coordinate system naturally induces projected mortar counterparts of tangential kinetic and kinematic quantities while automatically satisfying incremental objectivity of the associated discrete penalty-regularized mortar constraints. Mixed contact variables that contribute to the boundary value problem are then obtained through unconstrained, lumped or constrained recovery approaches, complemented by Uzawa augmentations. Patch tests and surface locking studies are presented together with local and global quality monitors of the contact interactions in two- and three-dimensional settings at the infinitesimal and finite deformation regimes. © 2012 Elsevier B.V.
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Temizer I.; Wriggers P.; Hughes, T.J.R. (2012)A three-dimensional mortar-based frictional contact treatment in isogeometric analysis with NURBS is presented in the finite deformation regime. Within a setting where the NURBS discretization of the contact surface is ...
De Lorenzis L.; Temizer I.; Wriggers P.; Zavarise G. (2011)This paper focuses on the application of NURBS-based isogeometric analysis to Coulomb frictional contact problems between deformable bodies, in the context of large deformations. A mortar-based approach is presented to ...
Temizer I.; Hesch, C. (Elsevier, 2016)This work investigates mortar-based frictionless contact in the context of NURBS discretizations that are subjected to local hierarchical refinement. The investigations emphasize three sets of choices which lead to different ...