Slow cracklike dynamics at the onset of frictional sliding

Bouchbinder, E.; Brener, E.A.; Urbakh, M.; Barel, I.

doi:10.1103/PhysRevLett.107.235501

Journal Article

PreJuSER-19502

Slow cracklike dynamics at the onset of frictional sliding

Bouchbinder, E. ; Barel, I. ; Brener, E. A.FZJ* ; Urbakh, M.

2011
APS College Park, Md.

Physical review letters 107, 235501 (2011) [10.1103/PhysRevLett.107.235501]

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Please use a persistent id in citations: http://hdl.handle.net/2128/7390 doi:10.1103/PhysRevLett.107.235501

Abstract: We propose a friction model which incorporates interfacial elasticity and whose steady state sliding relation is characterized by a generic nonmonotonic behavior, including both velocity weakening and strengthening branches. In 1D and upon the application of sideway loading, we demonstrate the existence of transient cracklike fronts whose velocity is independent of sound speed, which we propose to be analogous to the recently discovered slow interfacial rupture fronts. Most importantly, the properties of these transient inhomogeneously loaded fronts are determined by steady state front solutions at the minimum of the sliding friction law, implying the existence of a new velocity scale and a "forbidden gap" of rupture velocities. We highlight the role played by interfacial elasticity and supplement our analysis with 2D scaling arguments.

Keyword(s): J

Classification:

Physics, Multidisciplinary

Note: We thank O. Ben-David and J. Fineberg for numerous insightful discussions. E. B. acknowledges support of the James S. McDonnell Foundation, the Harold Perlman Family Foundation, and the Robert Rees Applied Research Fund. E. A. B. acknowledges support of the Erna and Jacob Michael visiting professorship funds at Weizmann Institute of Science. M. U. acknowledges support by the Israel Science Foundation, Grant 1109/09 and by the German-Israeli Project Cooperation Program (DIP).

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