A Tangential Force-Displacement Model for Elastic Frictional Contact between Particles in Triaxial Test Simulations
P. Franken, S. François, E. Tijskens and G. Degrande

Effect of the Number of Contact Points on Shear Properties for Granular Materials
Y. Fukumoto, H. Sakaguchi and A. Murakami

Creep Behavior of Confined Layers of Polyhedral Grains
J.C. Quezada, F. Radjaï and G. Saussine

Adaptive Coupling of the Discrete and Boundary Element Method for the Simulation of Problems in Geotechnical Engineering
L. Malinowski, G. Karlis, G. Beer and J. Rojek