| Numéro |
J. Phys. IV France
Volume 12, Numéro 9, November 2002
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|---|---|---|
| Page(s) | 319 - 320 | |
| DOI | https://doi.org/10.1051/jp4:20020426 | |
J. Phys. IV France 12 (2002) Pr9-319
DOI: 10.1051/jp4:20020426
Time dependent static friction force of agar gel-on-glass plate immersed in water
T. Nitta1, H. Haga1 and K. Kawabata21 Division of Physics, Graduate School of Sciences, Hokkaido University, Sapporo 060-0810, Japan
2 Division of Biological Sciences, Graduate School of Sciences, Hokkaido University, Sapporo 060-0810, Japan
Abstract
We measured the static friction force of agar gel-on-glass plate in water.
The static friction force is independent of the apparent contact area between
the agar gel and the glass plate. It increases with waiting time, that is, contact
duration prior to motion. The static friction force is represented well by a power
law of waiting time.
The waiting time dependence is different from those of solid-on-solid systems.
These results are discussed, based on asperity contact model.
© EDP Sciences 2002