TY - JOUR A1 - Otto, Peter A1 - De Lorenzis, L. A1 - Unger, Jörg F. T1 - Coupling a NURBS contact interface with a higher order finite element discretization for contact problems using the mortar method JF - Computational Mechanics N2 - In this paper, a contact problem between two bodies, discretized by finite elements, is solved by adding an auxiliary NURBS layer between the bodies. The advantages of a smooth contact formulation in a NURBS approach are combined with simple mesh generation procedures for the bodies discretized with finite elements. Mesh tying conditions are used to couple the NURBS layer with the finite element discretization. The NURBS layer is the master side for contact and mesh tying. Mesh tying is enforced either using pointwise or mortar type approaches. Frictionless 2D and 3D contact problems are considered using small deformations. The contact problem is discretized with the mortar method and a penalty approach is used to enforce the contact constraints. A robust element-based quadrature is applied for mortar tying and contact discretizations, thus avoiding computationally expensive Segmentation. KW - Contact mechanics KW - Isogeometric analysis KW - Mortar methods KW - Spectral element method PY - 2018 DO - https://doi.org/10.1007/s00466-018-1645-y SN - 0178-7675 SN - 1432-0924 VL - 63 IS - 6 SP - 1203 EP - 1222 PB - Springer AN - OPUS4-46800 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -