Viscoelastic depinning of driven systems: mean-field plastic scallops |
| |
Authors: | Marchetti Middleton Prellberg |
| |
Institution: | Physics Department, Syracuse University, Syracuse, New York 13244, USA. |
| |
Abstract: | We have investigated the mean-field dynamics of an overdamped viscoelastic medium driven through quenched disorder. The model allows for the coexistence of pinned and sliding regions and can exhibit continuous elastic depinning or first-order hysteretic depinning. Numerical simulations indicate mean-field instabilities that correspond to macroscopic stick-slip events and lead to premature switching. The model describes the elastic and plastic dynamics of driven vortex arrays in superconductors and other extended disordered systems. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|