S-splines: A simple surface solution for IGA and CAD
Document Type
Article
Publication Date
6-15-2019
Abstract
This paper introduces S-spline curves and surfaces. Local refinement of S-spline surfaces is much simpler to understand and to implement than T-spline refinement. Furthermore, no unwanted control points arise in S-spline refinement, unlike T-spline refinement. The refinement algorithm assures linear independence of blending functions. Thus, for isogeometric analysis, S-spline surfaces provide optimal degrees of freedom during adaptive local refinement. S-splines are compatible with NURBS and T-splines, and can easily be added to existing T-spline implementations.
Publication Source (Journal or Book title)
Computer Methods in Applied Mechanics and Engineering
First Page
664
Last Page
678
Recommended Citation
Li, X., & Sederberg, T. (2019). S-splines: A simple surface solution for IGA and CAD. Computer Methods in Applied Mechanics and Engineering, 350, 664-678. https://doi.org/10.1016/j.cma.2019.03.035
