Fracture criterion based on the higher-order asymptotic fields

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	Fracture criterion based on the higher-order asymptotic fields
	Wei YG(魏悦广); Wang ZQ(王自强)
刊名	International Journal of Fracture
	1995
卷号	73 期号:1 页码:39-50
关键词	Crack-Tip Fields Triaxiality Parameter Family Terms
ISSN号	0376-9429
通讯作者	Wei, YG (reprint author), ACAD SINICA,INST MECH,LNM,BEIJING 100080,PEOPLES R CHINA.
中文摘要	A complete development for the higher-order asymptotic solutions of the crack tip fields and finite element calculations for mode I loading of hardening materials in plane strain are performed. The results show that in the higher-order asymptotic solution (to the twentieth order), only three coefficients are independent. These coefficients are determined by matching with the finite element solutions carried out in the present paper (our attention is focused on the first five terms of the higher-order asymptotic solution). We obtain an analytic characterization of crack tip fields, which conform very well to the finite element solutions over wide range. A modified two parameter criterion based on the asymptotic solution of five terms is presented. The upper bound and lower bound fracture toughness curves predicted by modified two parameter criterion are given. These two curves agree with most of the experimental data and fully capture the proper trend.
类目[WOS]	Materials Science, Multidisciplinary ; Mechanics
研究领域[WOS]	Materials Science ; Mechanics
关键词[WOS]	CRACK-TIP FIELDS ; TRIAXIALITY PARAMETER ; FAMILY ; TERMS
收录类别	SCI
语种	英语
WOS记录号	WOS:A1995TM71000004
公开日期	2009-08-03 ; 2010-08-20
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/39170]
专题	力学研究所_力学所知识产出(1956-2008)
推荐引用方式 GB/T 7714	Wei YG,Wang ZQ. Fracture criterion based on the higher-order asymptotic fields[J]. International Journal of Fracture,1995,73(1):39-50.
APA	魏悦广,&王自强.(1995).Fracture criterion based on the higher-order asymptotic fields.International Journal of Fracture,73(1),39-50.
MLA	魏悦广,et al."Fracture criterion based on the higher-order asymptotic fields".International Journal of Fracture 73.1(1995):39-50.