nurltoolbox

This package includes a collection of routines for the creation and operation of Non-Uniform Rational Lagrange (NURL) function geometries and its applications to isogeometric analysis of in-plane and flexural vibration of thin plates, based on the NURL toolbox by Bo Liu. The package includes 3 sub-packages: (1) a basic NURL package for the creation and operation of NURL geometries and isogeometric analysis. (2) A NURL curve package. This package includes routines for creation and operation of plane NURL curves such as curve creation, cutting, etc. (3) A graphic user interface (GUI) based on the NURL curve package. This package can be used to create plane Coons surfaces using plane curves. Most routines include detailed descriptions and a few demos. Please read the paper by Bo Liu on Comput. Methods Appl. Mech. Engrg. (2017) for details (http://dx.doi.org/10.1016/j.cma.2017.04.007). The NURL packages can be downloaded from this link: http://nurl.sourceforge.net.

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