Abstract
AbstractIn the framework of isogeometric analysis, models are typically derived by the use of computer‐aided geometric design (CAGD) tools which often results in a large number of non‐conforming NURBS patches that are connected along arbitrary curved boundaries. A strong coupling on the basis of matching control meshes is rarely possible and limits the modeling process for practical applications. Weak coupling according to the principles introduced by Nitsche is the method of choice if a stable and variationally consistent method is favored which does not require the solution of additional equations to enforce the coupling constraints. We concentrate on the weak coupling of thin‐walled shell structures modeled according to the theory of Kirchhoff‐Love. The proposed concept is free of ad‐hoc decisions for stabilization thus truly supporting a design‐through‐analysis idea. (© 2014 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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