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Computational Mechanics

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20.10.2018 | Original Paper

Coupling a NURBS contact interface with a higher order finite element discretization for contact problems using the mortar method

verfasst von: Peter Otto, Laura De Lorenzis, Jörg F. Unger

Erschienen in: Computational Mechanics | Ausgabe 6/2019

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Abstract

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.

Vorheriger Artikel Phase-field-based modelling of the gelation process of biopolymer droplets in 3D bioprinting

Nächster Artikel A waveform relaxation Newmark method for structural dynamics problems

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Titel: Coupling a NURBS contact interface with a higher order finite element discretization for contact problems using the mortar method
verfasst von: Peter Otto
Laura De Lorenzis
Jörg F. Unger
Publikationsdatum: 20.10.2018
Verlag: Springer Berlin Heidelberg
Erschienen in: Computational Mechanics / Ausgabe 6/2019
Print ISSN: 0178-7675
Elektronische ISSN: 1432-0924
DOI: https://doi.org/10.1007/s00466-018-1645-y

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