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.
1989
发表期刊International Journal of Solids and Structures
卷号25期号:9页码:1053-1067
ISSN0020-7683
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
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.
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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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