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Spontaneous Mixed-Mode Fracture in Bonded Similar and Dissimilar Materials

Xia, K. and Chalivendra, V. B. and Rosakis, A. J. (2006) Spontaneous Mixed-Mode Fracture in Bonded Similar and Dissimilar Materials. Experimental Mechanics, 46 (2). pp. 163-171. ISSN 0014-4851.

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In this paper, we report on an experimental study of spontaneous, mixed-mode, crack propagation in weakly bonded similar and dissimilar materials. A unique experimental configuration is proposed to induce spontaneous crack growth events along the interfaces. The cracks nucleate from tiny circular holes and are triggered by an exploding wire. They subsequently propagate under the action of a constant, far-field load. Dynamic photoelasticity in conjunction with high speed photography is used to capture the real-time isochromatics associated with crack propagation. In the case of identical materials, crack propagation is anti-symmetric with respect to the crack nucleation point while strong asymmetry is observed for the case of dissimilar materials. In both cases, cracks propagate at constant velocity from the initiation point. The time histories of dynamic stress intensity factors and of energy release rates of the propagating cracks along the bonded similar materials are also reported.

Item Type:Article
Related URLs:
Rosakis, A. J.0000-0003-0559-0794
Additional Information:© 2006 Society for Experimental Mechanics. Received: 30 June 2005; Accepted: 29 November 2005. From the issue entitled "Special issue on Failure of Heterogenous Materials." The authors would like to acknowledge the support of the Office of Naval Research (ONR) through grant number N00014-03-1-0435 (Dr. Y.D.S. Rajapakse, project monitor). Helpful discussions with Prof. G. Ravichandran from Caltech, with Prof. A. Shukla from University of Rhode Island and with Prof. L.B. Freund at Brown University are also acknowledged.
Funding AgencyGrant Number
Office of Naval Research (ONR)N00014-03-1-0435
Subject Keywords:bonded materials; spontaneous dynamic fracture; mixed-mode dynamic photoelasticity; high speed photography; dynamic stress intensity factors; energy release rates
Issue or Number:2
Record Number:CaltechAUTHORS:20110120-101227428
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Official Citation:Xia, K., V. Chalivendra, et al. (2006). "Spontaneous Mixed-Mode Fracture in Bonded Similar and Dissimilar Materials." Experimental Mechanics 46(2): 163-171.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:21828
Deposited By: Tony Diaz
Deposited On:03 Feb 2011 18:48
Last Modified:09 Mar 2020 13:19

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