The moving least squares based numerical manifold method for vibration and impact analysis of cracked bodies

doi:10.1016/j.engfracmech.2017.12.025

CORC > 武汉岩土力学研究所 > 中科院武汉岩土力学所 > 岩土力学所知识全产出 > 期刊论文

	The moving least squares based numerical manifold method for vibration and impact analysis of cracked bodies
	Li, Wei 1,3; Zheng, Hong 2; Sun, Guanhua 1,3
刊名	ENGINEERING FRACTURE MECHANICS
	2018
卷号	190 页码:410-434
关键词	Moving least squares interpolation Numerical manifold method Dynamic fracture mechanics Dynamic stress intensity factor Mass lumping
ISSN号	0013-7944
DOI	10.1016/j.engfracmech.2017.12.025
英文摘要	In the numerical manifold method (NMM), the mathematical patches composing the mathematical cover can take on any shape in addition to finite elements. In this study, the influence domains of those scattered nodes in the moving least squares (MLS) approximation serve as the mathematical patches. And accordingly, the MLS based NMM, designated by MLS-NMM, is derived, which owns the advantages of both NMM and MLS. Then, MLS-NMM is applied to analyze cracked bodies under dynamic loading, and a mass lumping scheme fit for MLS-NMM is proposed. The dynamic analyses of some typical cracked bodies are carried out, indicating MLS-NMM equipped with the proposed mass lumping scheme has more excellent numerical properties than that with the consistent mass formulation in the analysis of the time domain as well as the frequency domain. (C) 2017 Elsevier Ltd. All rights reserved.
WOS研究方向	Mechanics
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000425221700027
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/4230]
专题	岩土力学所知识全产出_期刊论文国家重点实验室知识产出_期刊论文
作者单位	1.Univ Chinese Acad Sci 2.Beijing Univ Technol, Minist Educ, Key Lab Urban Secur & Disaster Engn ; 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotechn Engn ;
推荐引用方式 GB/T 7714	Li, Wei,Zheng, Hong,Sun, Guanhua. The moving least squares based numerical manifold method for vibration and impact analysis of cracked bodies[J]. ENGINEERING FRACTURE MECHANICS,2018,190:410-434.
APA	Li, Wei,Zheng, Hong,&Sun, Guanhua.(2018).The moving least squares based numerical manifold method for vibration and impact analysis of cracked bodies.ENGINEERING FRACTURE MECHANICS,190,410-434.
MLA	Li, Wei,et al."The moving least squares based numerical manifold method for vibration and impact analysis of cracked bodies".ENGINEERING FRACTURE MECHANICS 190(2018):410-434.