A Survey on Isogeometric Collocation Methods with Applications

Jingwen Ren and Hongwei Lin ()
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Jingwen Ren: School of Mathematical Sciences, Zhejiang University, Hangzhou 310058, China
Hongwei Lin: School of Mathematical Sciences, Zhejiang University, Hangzhou 310058, China

Mathematics, 2023, vol. 11, issue 2, 1-21

Abstract: Isogeometric analysis (IGA) is an effective numerical method for connecting computer-aided design and engineering, which has been widely applied in various aspects of computational mechanics. IGA involves Galerkin and collocation formulations. Exploiting the same high-order non-uniform rational B-spline (NURBS) bases that span the physical domain and the solution space leads to increased accuracy and fast computation. Although IGA Galerkin provides optimal convergence, IGA collocation performs better in terms of the ratio of accuracy to computational time. Without numerical integration, by working directly with the strong form of the partial differential equation over the physical domain defined by NURBS geometry, the derivatives of the NURBS-expressed numerical solution at some chosen collocation points can be calculated. In this study, we survey the methodological framework and the research prospects of IGA. The collocation schemes in the IGA collocation method that affect the convergence performance are addressed in this paper. Recent studies and application developments are reviewed as well.

Keywords: isogeometric analysis; isogeometric collocation; NURBS; computational mechanics (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2023
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