Description: Slow cracklike dynamics at the onset of frictional sliding

This title appears in the Scientific Report : 2011

Slow cracklike dynamics at the onset of frictional sliding

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 exist...

Personal Name(s):	Bouchbinder, E.
	Barel, I. / Brener, E.A. / Urbakh, M.
Contributing Institute:	Theoretische Nanoelektronik; PGI-2
Published in:	Physical review letters, 107 (2011) S. 235501
Imprint:	College Park, Md. APS 2011
Physical Description:	235501
DOI:	10.1103/PhysRevLett.107.235501
Document Type:	Journal Article
Research Program:	Grundlagen für zukünftige Informationstechnologien
Series Title:	Physical Review Letters 107
Subject (ZB):	J
Link:	Get full text OpenAccess
	Publikationsportal JuSER

Please use the identifier: http://hdl.handle.net/2128/7390 in citations.
Please use the identifier: http://dx.doi.org/10.1103/PhysRevLett.107.235501 in citations.

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.