NDLI: Mechanically based design: adaptive refinement for B-spline finite element

Content Provider	IEEE Xplore Digital Library
Author	Kagan, P. Fischer, A. Bar-Yoseph, P.
Copyright Year	2001
Description	Author affiliation: Lab. for Comput. Graphics & CAD, Technion-Israel Inst. of Technol., Haifa, Israel (Kagan, P.)
Abstract	This paper presents a method for adaptive refinement within an integrated mechanically based CAE system. The system uses a mechanical B-spline finite element model for both geometric design and mechanical analysis. A technique for locally refining a solution by B-spline finite elements is presented. The key component in the proposed method is the linear coordinate transformation introduced into the refined element. The transformation is constructed in such a way that the transformed nodal configuration of the refined element is identical to the nodal configuration of the neighbor elements. Therefore, the assembly proceeds in the regular fashion, while the C/sup 0/ continuity is forced along the inter-element boundary exactly. The proposed adaptive refinement method has been implemented both for surface and solid design without substantial differences in technical complexity. Its feasibility as applied to sculptured surface and solid objects is demonstrated by several examples.
Sponsorship	Consiglio Nazionale delle Richerche
Starting Page	345
Ending Page	366
File Size	708734
Page Count	22
File Format	PDF
ISBN	0769508537
DOI	10.1109/SMA.2001.923406
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-05-07
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Spline Finite element methods Computer aided engineering Shape Laboratories Solid modeling Algorithm design and analysis Computer graphics Design automation Mechanical engineering
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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