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Effect of decohesion and sliding on bimaterial crack-tip fields

Ortiz, Michael and Blume, Janet A. (1990) Effect of decohesion and sliding on bimaterial crack-tip fields. International Journal of Fracture, 42 (2). pp. 117-128. ISSN 0376-9429. doi:10.1007/BF00018381.

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This work is concerned with the analytical characterization of the effect of bond decohesion and sliding on the fields surrounding the tip of an interface crack. We consider the two-dimensional problem of an interface crack along the bond between a pair of linearly elastic materials. The interface itself has a nonlinear constitutive property: it has maximum load carrying capacities in both tension normal to the bond and in shear. The interface therefore has the ability to slide and separate inelastically without loss of integrity. The effects of these physically motivated assumptions are deduced and discussed. Further impetus for this study stems from the recent resurgence of interest in interfacial fracture mechanics. This interest is partly driven by the desire to understand and alleviate the pathological difficulties associated with the crack-tip fields predicted by the linear theory of elasticity. By accounting for possible interfacial nonlinear behavior, we are able to find that near-tip fields are free of the offensive properties alluded to above.

Item Type:Article
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URLURL TypeDescription
Ortiz, Michael0000-0001-5877-4824
Additional Information:© Kluwer Academic Publishers 1990. Received 1 March 1988; accepted 15 August 1988. We gratefully acknowledge the support of the Office of Naval Research through grant N00014-850-K-0720 (MO) and of the Materials Research Group at Brown University funded by the National Science Foundation through grant DMR-8714665 (JB).
Funding AgencyGrant Number
Office of Naval Research (ONR)N00014-850-K-0720
Issue or Number:2
Record Number:CaltechAUTHORS:20180104-142347004
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Official Citation:Ortiz, M. & Blume, J.A. Int J Fract (1990) 42: 117.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:84085
Deposited By: Lydia Suarez
Deposited On:04 Jan 2018 22:53
Last Modified:15 Nov 2021 20:16

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