A mixed formulation of mortar-based frictionless contact
Please cite this item using this persistent URLhttp://hdl.handle.net/11693/21448
Computer Methods in Applied Mechanics and Engineering
- Research Paper 
A class of mortar-based frictionless contact formulations is derived based on a classical three-field mixed variational framework. Within a penalty regularization complemented by Uzawa augmentations, discrete mortar constraints are naturally induced by the variational setting. Major aspects of earlier mortar approaches are obtained through constrained, lumped or unconstrained recovery procedures for the mixed kinematic and kinetic mortar quantities from their projected counterparts. Two- and three-dimensional examples at the infinitesimal and finite deformation regimes highlight the local and global quality of the contact interactions. © 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 ...