Journal
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
Volume 269, Issue -, Pages 394-414Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cma.2013.11.002
Keywords
Contact mechanics; Isogeomtric analysis; NURBS; T-splines
Funding
- European Research Council under the European Union's Seventh Framework Programme, ERC Starting Researcher Grant INTERFACES [279439]
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T-spline-based isogeometric analysis is applied to frictionless contact problems between deformable bodies in the context of large deformations. The continuum is discretized with cubic T-splines and cubic NURBS. A Gauss-point-to-surface formulation is combined with the penalty method to treat the contact constraints in the discretized setting. It is demonstrated that analysis-suitable T-splines, coupled with local refinement, accurately approximate contact pressures with far fewer degrees of freedom than NURBS. Both two- and three-dimensional examples are presented. Additionally, all T-spline analysis models are generated using commercially available T-spline modeling software without intermediate mesh generation or geometry clean-up steps. (C) 2013 Elsevier B.V. All rights reserved.
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