THE DISPLACEMENT FUNCTION OF QUASI-CONFORMING ELEMENT AND ITS NODE ERROR

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THE DISPLACEMENT FUNCTION OF QUASI-CONFORMING ELEMENT AND ITS NODE ERROR

Based on the strain formulation of the quasi-conforming finite element,displacement finctions are constructed which have definite physical meaning, and a conclusion can be obtained that the coefficients of the constant and the linear strain are uniquely determined, and the quasi-conforming finite element method is convergent to constant strain. There are different methods for constructing the rigid displacement items,and different methods correspond to different order node errors, and this is different fiom ordinary displacement method finite element.

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作 者: 何东升 唐立民  
作者单位:Department of Engineering Mechanics, Dalian University of Technology, Dalian,116023, P R China 
刊 名:应用数学和力学(英文版)  EI SCI
英文刊名:APPLIED MATHEMATICS AND MECHANICS(ENGLISH EDITION) 
年,卷(期):2002 23(2) 
分类号:O302 
关键词:quasi-conforming element   displacement function   error analysis   finiteelement method   9-parameter triangular plate element  
机标关键词:finite element methodphysical meaningmethods for 
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