Effects of loading angles on stick–slip dynamics of soft sliders

Tetsuo Yamaguchi*, Yoshinori Sawae, Shmuel M. Rubinstein

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

25 Scopus citations


When soft gels move across a hard surface, stick–slip frictional sliding is mediated by propagation of adhesion and detachment fronts. Here we experimentally investigate the sliding dynamics of an extended frictional interface between soft Silicone gel and hard PMMA and identify three distinct sliding regimes. We directly visualize the interface and show that a minute manipulation of the initial loading angle results in a sharp bifurcation between the different sliding states. The phase diagram as well as universal scaling relations governing the dynamics is presented.

Original languageAmerican English
Pages (from-to)331-335
Number of pages5
JournalExtreme Mechanics Letters
StatePublished - 1 Dec 2016
Externally publishedYes

Bibliographical note

Funding Information:
TY acknowledges T. Hatano, O. Kuwano, H. Matsukawa, and M. Otsuki for their important suggestions, and S. Dillavou for careful reading of the manuscript. This work was supported by Grant-in-Aid for Scientific Research on Innovative Areas, Crustal Dynamics (Grant Number 15H01144 ). SMR acknowledges support of Harvard MRSEC award ( DMR 14-20570 ).

Publisher Copyright:
© 2016 Elsevier Ltd


  • Friction
  • Gel
  • Schallamach wave
  • Stick–slip


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