Regensburg 2016 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 28: Poster - Complex Fluids, Granular Matter, Glasses

DY 28.6: Poster

Dienstag, 8. März 2016, 18:15–21:00, Poster C

Dissipation in sheared frictional granular media near the jamming transition — •Florian Spreckelsen, Matthias Grob, Claus Heussinger, and Anette Zippelius — Institut für Theoretische Physik, Universität Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen

Dense assemblies of frictional grains show reentrant flow when sheared, i.e., the system flows for high and low shear stress and jams in between. This behavior is absent in frictionless systems and signals the importance of dissipation mechanisms emerging from frictional particle interaction. We deploy molecular dynamics simulations in order to investigate the dominant contributions to dissipation near the jamming transition in two-dimensional systems.