Naive model for stick-slip processes.

  title={Naive model for stick-slip processes.},
  author={Françoise Brochard-Wyart and P-G de Gennes},
  journal={The European physical journal. E, Soft matter},
  volume={23 4},
This paper is a tutorial description of stick-slip in soft materials (rubber beads, gels) where inertial effects are negligible. A typical example is a rubber sphere, pressed against a glass surface (JKR contact). The sphere is driven from the top at a prescribed velocity U ( approximately 100 microm/s). At moderate U (and with suitable surface treatment) a periodic stick-slip regime is often observed. We present a simple picture of the stick-slip cycle, describing the growth of a slip zone… CONTINUE READING

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