MLS (moving least square)-based finite elements for three-dimensional nonmatching meshes and adaptive mesh refinement

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With the aid of moving least square (MLS) approximation, a new class of three-dimensional finite elements are proposed for treating nonmatching meshes and adaptive mesh refinement, for which the existing finite elements are hardly efficient. With a special choice of the weight-function supports and the base functions, the method results in useful elements with the polynomial shape function, for which the C-1 continuity breaks down on the boundaries between the neighboring subdomains comprising one element. The effectiveness of the new elements in handling the discontinuities due to nortmatching interfaces and automatic mesh refinement is demonstrated via three-dimensional examples. (c) 2006 Elsevier B.V. All rights reserved.
Publisher
ELSEVIER SCIENCE SA
Issue Date
2007
Language
English
Article Type
Article
Keywords

COMPUTATIONAL MECHANICS; QUADRATIC INTERPOLATION; INTERFACE ELEMENT; PART II; FORMULATION; PARTITION; UNITY

Citation

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, v.196, no.17-20, pp.2216 - 2228

ISSN
0045-7825
DOI
10.1016/j.cma.2006.11.014
URI
http://hdl.handle.net/10203/2717
Appears in Collection
ME-Journal Papers(저널논문)
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