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| 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.
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| Source Publication | International Journal of Solids and Structures
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| 1989 | |
| Volume | 25Issue:9Pages:1053-1067 |
| ISSN | 0020-7683 |
| Abstract | 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. |
| URL | 查看原文 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:A1989AQ52100005 |
| WOS Research Area | Mechanics |
| WOS Subject | Mechanics |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/39620 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | HE, MY (reprint author), CHINESE ACAD SCI,INST MECH,BEIJING,PEOPLES R CHINA. |
| Recommended Citation 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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