Friction measurements in granular media.
We present some experimental results, estimating the lateral stress response to a longitudinal stress applied to an ideal granular system as a function of friction parameters. Structural effects are taken into account through the use of an angle of contact distribution. The two-dimensional model, based on mainly equally sized cylinder granules allows one to derive a dependency of the friction between single granules and the overall angle of friction, which is commonly used to describe the macroscopic behavior of granulate material.
Technische Universität München, Arcisstrasse 21, 80333 Munich, Germany.
Wolfgang
W
Eber