Sliding Objects with Random Friction

TL;DR

This paper investigates the complex dynamics of elastic networks moving over random substrates, revealing a new universality class for the transition to sliding and mapping out a detailed phase diagram.

Contribution

It introduces a model incorporating local friction forces that uncovers a novel universality class for sliding transitions in elastic networks.

Findings

Identification of a transition to a sliding state with a new universality class

Phase diagram including pinned, stick-slip, and free motion phases

Complex dynamical behavior driven by local friction forces

Abstract

We study the motion of elastic networks driven over a random substrate. Our model which includes local friction forces leads to complex dynamical behavior. We find a transition to a sliding state which belongs to a new universality class. The phase diagram comprises of a pinned state, a stick-slip motion phase, and a free motion phase.