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	Fast multipole BEM for the analysis of pressure vessel opening structures
	Wang Wei ; Wang Haitao ; Shen Shifei
	2010-05-06 ; 2010-05-06
关键词	Practical Theoretical or Mathematical/ boundary-elements methods design pressure vessels/ fast multipole boundary elements methods pressure vessel opening structures high stress concentrations 3D boundary element method elastic materials fast multipole expansion formulation quadratic elements multipole expansion algorithm memory requirements multiple openings engineering designs/ E2110A General shapes and structures E1400 Design E0210L Numerical analysis
中文摘要	High stress concentrations occur around the openings of pressure vessels. The stress fields of such structure around the opening were predicted using a three-dimensional, higher-order fast multipole boundary element method. The three-dimensional boundary element method for elastic materials was extended to develop a fast multipole expansion formulation of the fundamental solutions for quadratic elements. The multipole expansion algorithm greatly reduces the memory requirements without losing accuracy. The entire pressure vessel structure with multiple openings can be analyzed by the multipole boundary element method, with the result agreeing well with those of large higher-order finite element models. The results show that the higher-order, fast multipole boundary element method can be applied to large problems with high numerical accuracy for engineering designs.
语种	中文 ; 中文
出版者	Tsinghua Univ. Press ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/11906]
专题	清华大学
推荐引用方式 GB/T 7714	Wang Wei,Wang Haitao,Shen Shifei. Fast multipole BEM for the analysis of pressure vessel opening structures[J],2010, 2010.
APA	Wang Wei,Wang Haitao,&Shen Shifei.(2010).Fast multipole BEM for the analysis of pressure vessel opening structures..
MLA	Wang Wei,et al."Fast multipole BEM for the analysis of pressure vessel opening structures".(2010).

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