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A dual singular hybrid boundary node method based on origin singular intensity factor

文献类型：期刊论文

作者Yan, Fei2,3,4; Jiang, Quan4; Li, Shao-Jun4; Pan, Pengzhi4; Xu, Ding-ping4; Zhang, Jia-xin1; Fan, Bo1
刊名ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS
出版日期2020-06-01
卷号115页码:64-71
关键词Origin singular intensity factor Dual reciprocity method Hybrid boundary node method Fundamental solution Potential problems
ISSN号0955-7997
DOI10.1016/j.enganabound.2020.03.010
英文摘要In this work, a dual singular hybrid boundary node method(SBNM) is proposed for two-dimensional potential problems. The present SBNM is developed as an improved method of the traditional dual hybrid boundary node method to give a method to deal with the boundary layer effect, instead of the traditional rigid body displacement or auxiliary source points, and improves the numerical stability of the traditional dual hybrid boundary node method. The origin singular intensity factor is employed to deal with the singular and near singular when the source points and the calculating points are very close or coincident with each other, by this method, the source points are located on physical boundary and coincide with the calculating points, and an adaptive interpolating method is developed to calculate the origin singular intensity factor to overcome numerical instability in large-scale simulations caused by singular and near singular, based on origin singular intensity factor, a new scheme of internal variables interpolation is proposed. Some studies are done to given to verify that the origin singular intensity factors exist and are not infinite, and they have the same values for the same types of problems on the same referring point with the same calculating geometry. Numerical examples are shown that the present method is efficient and accurate, and it can be used for some other large practical engineering.
资助项目National Nature Science Foundation of China[51621006] ; National Nature Science Foundation of China[51839003] ; National Nature Science Foundation of China[41572296] ; State Key Research Development Program of China[2017YFC0804203] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences[QYZDB-SSW-DQC029]
WOS研究方向Engineering ; Mathematics
语种英语
WOS记录号WOS:000526518200007
出版者ELSEVIER SCI LTD
源URL[http://119.78.100.198/handle/2S6PX9GI/23946]  
专题中科院武汉岩土力学所
通讯作者Jiang, Quan
作者单位1.Second Highway Consultants Co Ltd, China Commun Construct Co, Wuhan 430056, Peoples R China
2.Northeastern Univ, Key Lab, Minist Educ Safe Min Deep Met Mines, Shenyang 110819, Peoples R China
3.CAS Ctr Excellence Complex Syst Mech, Beijing, Peoples R China
4.Chinese Acad Sci, State Key Lab Geomech & Geotech Engn, Inst Rock & Soil Mech, Wuhan 430071, Peoples R China
推荐引用方式
GB/T 7714		 Yan, Fei,Jiang, Quan,Li, Shao-Jun,et al. A dual singular hybrid boundary node method based on origin singular intensity factor[J]. ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS,2020,115:64-71.
APA Yan, Fei.,Jiang, Quan.,Li, Shao-Jun.,Pan, Pengzhi.,Xu, Ding-ping.,...&Fan, Bo.(2020).A dual singular hybrid boundary node method based on origin singular intensity factor.ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS,115,64-71.
MLA Yan, Fei,et al."A dual singular hybrid boundary node method based on origin singular intensity factor".ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS 115(2020):64-71.

入库方式： OAI收割

来源：武汉岩土力学研究所

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