Dynamic SIF of interface crack between two dissimilar viscoelastic bodies under impact loading

CORC > 力学研究所 > 中国科学院力学研究所 > 力学所知识产出(1956-2008)

	Dynamic SIF of interface crack between two dissimilar viscoelastic bodies under impact loading
	Wei PJ(魏培君); Zhang SY(张双寅); Wu YL(吴永礼); Li RKY
刊名	International Journal of Fracture
	2000
卷号	105 期号:2 页码:127-136
ISSN号	0376-9429
通讯作者	Wei, PJ (reprint author), Chinese Acad Sci, Inst Mech, Lab Nonlinear Mech Continuous Media, Beijing 100080, Peoples R China.
中文摘要	In this paper, the transient dynamic stress intensity factor (SIF) is determined for an interface crack between two dissimilar half-infinite isotropic viscoelastic bodies under impact loading. An anti-plane step loading is assumed to act suddenly on the surface of interface crack of finite length. The stress field incurred near the crack tip is analyzed. The integral transformation method and singular integral equation approach are used to get the solution. By virtue of the integral transformation method, the viscoelastic mixed boundary problem is reduced to a set of dual integral equations of crack open displacement function in the transformation domain. The dual integral equations can be further transformed into the first kind of Cauchy-type singular integral equation (SIE) by introduction of crack dislocation density function. A piecewise continuous function approach is adopted to get the numerical solution of SIE. Finally, numerical inverse integral transformation is performed and the dynamic SIF in transformation domain is recovered to that in time domain. The dynamic SIF during a small time-interval is evaluated, and the effects of the viscoelastic material parameters on dynamic SIF are analyzed.
学科主题	力学
类目[WOS]	Materials Science, Multidisciplinary ; Mechanics
研究领域[WOS]	Materials Science ; Mechanics
关键词[WOS]	STRESS INTENSITY FACTORS ; ANISOTROPIC HALF-SPACES ; TRANSIENT-RESPONSE
收录类别	SCI
语种	英语
WOS记录号	WOS:000089599200002
公开日期	2007-06-15 ; 2007-12-05 ; 2009-06-23
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/16707]
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 PJ,Zhang SY,Wu YL,et al. Dynamic SIF of interface crack between two dissimilar viscoelastic bodies under impact loading[J]. International Journal of Fracture,2000,105(2):127-136.
APA	魏培君,张双寅,吴永礼,&Li RKY.(2000).Dynamic SIF of interface crack between two dissimilar viscoelastic bodies under impact loading.International Journal of Fracture,105(2),127-136.
MLA	魏培君,et al."Dynamic SIF of interface crack between two dissimilar viscoelastic bodies under impact loading".International Journal of Fracture 105.2(2000):127-136.