The Pinning of Random Elastic Chains in Random Media
Abstract
We have studied the static and dynamic properties of random chains embedded in random media. This is a model of friction between two disordered elastic media in contact (e.g. tectonic plates). The static properties are investigated by mapping the problem to that of a directed path on a lattice. Scaling arguments and transfer matrix calculations indicate that the system belongs to the universality class of the directed path in 1+1 dimensional random media. Zero-temperature response of the random chain to an external driving force is studied numerically by integrating equations of motions. A depinning transition at a finite threshold force is found. The dynamic critical phenomenon which occurs at the depinning threshold is characterized.
- Publication:
-
APS March Meeting Abstracts
- Pub Date:
- March 1996
- Bibcode:
- 1996APS..MAR.N2409C