Crack deflection at an interface between dissimilar elastic-materials

IMECH-IR > 力学所知识产出(1956-2008)

	Crack deflection at an interface between dissimilar elastic-materials
	He MY(何明元); Hutchinson JW; HE, MY (reprint author), CHINESE ACAD SCI,INST MECH,BEIJING,PEOPLES R CHINA.
发表期刊	International Journal of Solids and Structures
	1989
卷号	25 期号:9 页码:1053-1067
ISSN	0020-7683
摘要	A crack intersecting an interface between two dissimilar materials may advance by either penetrating through the interface or deflecting into the interface. The competition between deflection and penetration can be assessed by comparison of two ratios: (i) the ratio of the energy release rates for interface cracking and crack penetration; and (ii) the ratio of interface to material fracture energies. Residual stresses caused by thermal expansion misfit can influence the energy release rates of both the deflected and penetrating crack. This paper analyses the role of residual stresses. The results reveal that expansion misfit can be profoundly important in systems with planar interfaces (such as layered materials, thin film structures, etc.), but generally can be expected to be of little significance in fiber composites. This paper corrects an earlier result for the ratio of the energy release rate for the doubly deflected crack to that for the penetrating crack in the absence of residual stress.
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收录类别	SCI
语种	英语
WOS记录号	WOS:A1989AQ52100005
WOS研究方向	Mechanics
WOS类目	Mechanics
引用统计	被引频次：999[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/39620
专题	力学所知识产出(1956-2008)
通讯作者	HE, MY (reprint author), CHINESE ACAD SCI,INST MECH,BEIJING,PEOPLES R CHINA.
推荐引用方式 GB/T 7714	He MY,Hutchinson JW,HE, MY . Crack deflection at an interface between dissimilar elastic-materials[J]. International Journal of Solids and Structures,1989,25,9,:1053-1067.
APA	He MY,Hutchinson JW,&HE, MY .(1989).Crack deflection at an interface between dissimilar elastic-materials.International Journal of Solids and Structures,25(9),1053-1067.
MLA	He MY,et al."Crack deflection at an interface between dissimilar elastic-materials".International Journal of Solids and Structures 25.9(1989):1053-1067.

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