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Molecular Dynamics Studies of Interfacial Crack Propagation in Heterogeneous Media

Published online by Cambridge University Press:  15 February 2011

John M. Corbett  and
Robin L. B. Selinger
John M. Corbett
Affiliation:
Naval Surface Warfare Center Indian Head Division, Indian Head, Maryland Catholic University, Washington, DCselinger@cua.edu
Robin L. B. Selinger
Affiliation:
Catholic University, Washington, DCselinger@cua.edu
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Abstract

We use molecular dynamics simulation to investigate the evolution of a crack front in interfacial fracture in three dimensions. We find that when a crack passes through a localized region of heterogeneous toughness, crack front waves are initiated and propagate laterally. We also investigate the development of roughness of the crack front when the crack propagates in a region of heterogeneous toughness. We find that in steady state the mean square width W of the front scales with system size L as W∼L0.35, in agreement with recent theoretical predictions.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 539: Symposium M – Fracture & Ductile vs. Brittle Behavior - Theory, Modelling… , 1998 , 209
Copyright
Copyright © Materials Research Society 1999

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References

[1] See, e.g. Daguier, P., Nghiem, B., Bouchaud, E., and Creuzet, F., Phys. Rev. Lett 78, 1062 (1997).Google Scholar
[2] Schmittbuhl, J., Roux, S., Vilotte, J.-P., andMdloy, K. J., Phys. Rev. Lett 74, 1787 (1995).Google Scholar
[3] Ramanathan, S. and Fisher, D. S., Phys. Rev. Lett. 79, 877 (1997); Phys. Rev. E 58, 6026 (1998).Google Scholar
[4] Fukuhara, T. and Nakanishi, H., “Dynamical stability of the crack front line” preprint, posted at http://xxx.lanl.gov as cond-mat/9807227.Google Scholar
[5] Holland, D. and Marder, M., Phys. Rev. Lett. 80, 746 (1998).Google Scholar
[6] Morrissey, J. W. and Rice, J. R., J. Mech. Phys. Sol. 46, 467 (1998).Google Scholar
[7] Schmittbuhl, J. and Mdloy, K. J., Phys Rev. Lett. 78, 3888 (1997).Google Scholar