Brittle Fracture Theory Predicts the Equation of Motion of Frictional Rupture Fronts

Ilya Svetlizky, David S. Kammer, Elsa Bayart, Gil Cohen, Jay Fineberg*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

50 Scopus citations

Abstract

We study rupture fronts propagating along the interface separating two bodies at the onset of frictional motion via high-temporal-resolution measurements of the real contact area and strain fields. The strain measurements provide the energy flux and dissipation at the rupture tips. We show that the classical equation of motion for brittle shear cracks, derived by balancing these quantities, well describes the velocity evolution of frictional ruptures. Our results demonstrate the extensive applicability of the dynamic brittle fracture theory to friction.

Original languageAmerican English
Article number125501
JournalPhysical Review Letters
Volume118
Issue number12
DOIs
StatePublished - 21 Mar 2017

Bibliographical note

Publisher Copyright:
© 2017 American Physical Society.

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