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DPG

Regensburg 2007 – scientific programme

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DY: Fachverband Dynamik und Statistische Physik

DY 31: Granular matter / contact dynamics II

DY 31.3: Talk

Friday, March 30, 2007, 10:45–11:00, H2

Impedance Spectra of Numerically Generated Particle Setups — •Dominik Schwesig and Dietrich Wolf — Universität Duisburg-Essen

We use the Contact Dynamic Method to generate the particle c onfiguration of a cohesive powder in a cylinder for different applied stresses, as done in experiments for nanopowders. We simulate the complex resistance of these configurations with a classic circuit network for a wide range of frequncies and compare these spectra with a simple model for the current network in these powders.

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