This article is cited in 30 papers

CONDENSED MATTER

Frictional shear cracks

E. A. Brener^a, V. I. Marchenko<sup>b

a</sup> Institut für Festkörperforschung, Forschungszentrum Jülich
^b P. L. Kapitza Institute for Physical Problems, Russian Academy of Sciences, Moscow

Abstract: We discuss crack propagation along the interface between two dissimilar materials. The crack edge separates two states of the interface, «stick» and «slip». In the slip region we assume that the shear stress is proportional to the sliding velocity, i.e. the linear viscous friction law. In this picture the static friction appears as the Griffith threshold for crack propagation. We calculate the crack velocity as a function of the applied shear stress and find that the main dissipation comes from the macroscopic region and is mainly due to the friction at the interface. The relevance of our results to recent experiments, Baumberger et al., Phys. Rev. Lett. 88, 075509 (2002), is discussed.

PACS: 46.50.+a, 46.55.+d, 62.20.-x

Received: 10.07.2002

Language: English

 English version: Journal of Experimental and Theoretical Physics Letters, 2002, 76:4, 211–214

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