Subdomain precise integration method based on Householder method

被引：0
|
作者：
Liu, Ting-Ting [1 ]
Zhang, Wen-Shou [1 ]
Lin, Jia-Hao [1 ]
机构：
[1] State Key Laboratory of Structural Analysis and Industrial Equipment, Dalian University of Technology, Dalian 116024, China
来源：
Jisuan Lixue Xuebao/Chinese Journal of Computational Mechanics | 2009年 / 26卷 / 04期
关键词：
Integration; -; Heating;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The sizes and bandwidths of the matrices generated by finite element method are usually quite large, so it is difficult to choose a suitable subdomain when using subdomain precise integration method. By using Householder method to reduce the matrices to tridiagonal form in this paper, subdomain precise integration method can then be used in large finite element systems. More accurate results compared to modified midpoint method can be achieved without iterations by introducing predictor-corrector method to subdomain precise integration method.
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页码：535 / 538
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