Isogeometric Weak Coupling of Shell Structures

Guo, Y. and Ruess, M. (2015) Isogeometric Weak Coupling of Shell Structures. In: 56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Kissimmee FL, USA, 5-9 Jan 2015, ISBN 9781624103421 (doi: 10.2514/6.2015-0965)

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Abstract

Shell structures are widely used in aerospace industry. They are ideal candidates for the isogeometric analysis paradigm profiting from the smoothness, the higher order approximation and higher continuity properties of NURBS. For the modeling of complex shell structures which need to be assembled from multiple patches, the bending stiffness should be maintained across patch interfaces. We propose a variationally consistent weak coupling method for thin-walled shell patches. The method overcomes the need for C1 continuity along the patch interface and even allows a blended coupling of shells based on different mathematical models, e.g. Kirchhoff-Love and solid-like shell models. The results confirm a high level of accuracy and reveal the method’s potential for complex multi-patch IGA modeling. It further opens the door for the coupling of laminated composites belonging to different lamina theories.

Item Type:Conference Proceedings
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Ruess, Dr Martin
Authors: Guo, Y., and Ruess, M.
College/School:College of Science and Engineering > School of Engineering > Infrastructure and Environment
ISBN:9781624103421

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