期刊
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
卷 255, 期 -, 页码 238-254出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cma.2012.11.012
关键词
Powell-Sabin splines; NURBS; NURPS; Isogeometric analysis
Quadratic Powell-Sabin splines and their rational extension, the so-called NURPS surfaces, are an interesting alternative for classical tensor-product NURBS in the context of isogeometric analysis, because they allow the use of local refinements while retaining a B-spline like representation and exact description of conic sections. In this paper we present a simple and effective strategy to convert a given planar geometry defined by a quadratic NURBS representation into a NURPS representation, suitable for the analysis. (C) 2012 Elsevier B.V. All rights reserved.
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