A mixed formulation of mortar-based frictionless contact

Date
2012
Authors
Temizer, I.
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Source Title
Computer Methods in Applied Mechanics and Engineering
Print ISSN
0045-7825
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Volume
223-224
Issue
Pages
173 - 185
Language
English
Type
Article
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Abstract

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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Keywords
Contact, Large deformation, Mixed formulation, Mortar method, Contact interaction, Finite deformations, Frictionless contacts, Global quality
Citation
Published Version (Please cite this version)