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A new method for converting trimmed NURBS surface to T-splinesurface for isogeometric analysis

  • Beihang University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

NURBS-based isogeometric analysis (IGA) is commonly recognized as more accurate and efficient than traditional finite element method because isogeometric method saves time from toilsome mesh generation and NURBS possesses high-continuity and high-order properties. However, it is difficult to implement isogeometric analysis on trimmed NURBS models owing to the difficulty of computing integral on trimmed-NURBS elements. In this paper a novel method is implemented to convert trimmed NURBS surface to T-splines for isogeometric analysis. Bézier extraction operation is employed to extract Bézier elements from T-spline surface with multiple extraordinary points. The trimmed NURBS surface and converted untrimmed T-spline surface are visualized and two numerical examples are investigated to demonstrate the validity of the proposed method by comparing the IGA results with that from commercial software ABAQUS.

Original languageEnglish
Title of host publication2017 5th International Conference on Computer-Aided Design, Manufacturing, Modeling and Simulation, CDMMS 2017
EditorsShanhong Zhu, Tao Kuang, Dajing Fang
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735415041
DOIs
StatePublished - 28 Apr 2017
Event2017 5th International Conference on Computer-Aided Design, Manufacturing, Modeling and Simulation, CDMMS 2017 - Busan, Korea, Republic of
Duration: 22 Apr 201723 Apr 2017

Publication series

NameAIP Conference Proceedings
Volume1834
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference2017 5th International Conference on Computer-Aided Design, Manufacturing, Modeling and Simulation, CDMMS 2017
Country/TerritoryKorea, Republic of
CityBusan
Period22/04/1723/04/17

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