Abstract
First rheological investigation results of weakly wet granular media are
presented. The materials have been examined experimentally and numerically in well-
defined shear configurations in steady state, in the intermediate flow regime. For the
experiments, a Searl-type ring shear cell with rotating inner cylinder and fixed outer
cylinder is used. In the numerical particle simulation approach, a split-bottom shear
cell is used. Relevant local continuum flow fields (e.g. velocity, stress, shear rates) are
determined by micro-macro transition from the simulations data. After the simulations are
validated by experiments, e.g. by comparison with the experimentally accessible quantities
like shear-torque at the inner wheel, they can give a deeper insight into the microscopic
kinematics. The granular media have considerably more “wet contacts” in the shear
zone, as for example the location-plot of purely wet bridges, without mechanical contacts
suggests. Finally, critical state flow rules concerning the viscosity of wet granular materials
are discussed.
Original language | English |
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Title of host publication | Fundamentals and Applications PARTICLES 2013 |
Editors | E. Ramm E. Onate M. Bischoff, P. Wriggers |
Place of Publication | Spain |
Publisher | CIMNE |
Pages | 153-164 |
ISBN (Print) | 978-84-941531-8-1 |
Publication status | Published - 18 Sept 2013 |
Event | 3rd International Conference on Particle-Based Methods, PARTICLES 2013 - Stuttgart, Germany Duration: 18 Sept 2013 → 20 Sept 2013 Conference number: 3 http://congress.cimne.com/particles2013/frontal/default.asp |
Publication series
Name | |
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Publisher | CIMNE |
Conference
Conference | 3rd International Conference on Particle-Based Methods, PARTICLES 2013 |
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Abbreviated title | PARTICLES |
Country/Territory | Germany |
City | Stuttgart |
Period | 18/09/13 → 20/09/13 |
Internet address |
Keywords
- IR-89141
- METIS-302026