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DY: Dynamik und Statistische Physik

DY 25: Granuar Matter and Contact Dynamics I

DY 25.8: Vortrag

Dienstag, 28. März 2006, 16:15–16:30, SCH 251

Relaxation Times in Sheared Granular Matter — •Lothar Brendel, Dirk Kadau, and Dietrich E. Wolf — University Duisburg-Essen, Theoretical Physics

A significant feature of granular matter is the existence of memory effects, making a thermodynamic-like approach not generally applicable. In this context, monitoring of temporal correlations within the micro-structure can provide crucial insights. We present auto correlation functions related to the local fabric, measured in discrete element simulation of non-cohesive as well as cohesive materials. We mainly focus on steady state flow which is an important concept for characterizing granular materials in the applied field of powder technology.