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Crack propagation in brittle heterogeneous solids: Material disorder and crack dynamics

Ponson, Laurent and Bonamy, Daniel (2010) Crack propagation in brittle heterogeneous solids: Material disorder and crack dynamics. International Journal of Fracture, 162 (1-2). pp. 21-31. ISSN 0376-9429. https://resolver.caltech.edu/CaltechAUTHORS:20100709-164826782

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Abstract

Crack propagation in a linear elastic material with weakly inhomogeneous failure properties is analyzed. An equation of motion for the crack is derived in the limit of slow velocity. Predictions of this equation on both the average crack growth velocity and its fluctuations are compared with recent experimental results performed on brittle heterogeneous materials (Ponson in Phys Rev Lett, 103, 055501; Måløy et al. in Phys Rev Lett, 96, 045501). They are found to reproduce quantitatively the main features of crack propagation in disordered systems. This theoretical framework provides new tools to predict life time and fracture energy of materials from their properties at the micro-scale.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1007/s10704-010-9481-xDOIUNSPECIFIED
http://www.springerlink.com/content/dr3644r800480213/PublisherUNSPECIFIED
Additional Information:© 2010 Springer Science+Business Media B.V. Received: 11 July 2009. Accepted: 13 March 2010. Published online: 7 April 2010. The authors would like to thank G. Cordeiro and A. Bindal for their help in the experiments and J.-B. Leblond, S. Santucci and R. Toledo for helpful discussions. L. P. is supported by the European Union through a Marie Curie fellowship (PhyCracks project).
Funders:
Funding AgencyGrant Number
European Union through a Marie Curie fellowshipUNSPECIFIED
Subject Keywords:Inhomogeneous materials; Growth velocity of cracks; Velocity fluctuations
Issue or Number:1-2
Record Number:CaltechAUTHORS:20100709-164826782
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20100709-164826782
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:18981
Collection:CaltechAUTHORS
Deposited By: Jason Perez
Deposited On:13 Jul 2010 15:11
Last Modified:03 Oct 2019 01:50

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