Physics – Condensed Matter – Soft Condensed Matter
Scientific paper
2002-11-12
Physics
Condensed Matter
Soft Condensed Matter
11 pages, 11 figures, submitted to PRE (v2) added new references, fixed typos
Scientific paper
10.1103/PhysRevE.67.041303
The structure and stresses of static granular packs in cylindrical containers are studied using large-scale discrete element molecular dynamics simulations in three dimensions. We generate packings by both pouring and sedimentation and examine how the final state depends on the method of construction. The vertical stress becomes depth-independent for deep piles and we compare these stress depth-profiles to the classical Janssen theory. The majority of the tangential forces for particle-wall contacts are found to be close to the Coulomb failure criterion, in agreement with the theory of Janssen, while particle-particle contacts in the bulk are far from the Coulomb criterion. In addition, we show that a linear hydrostatic-like region at the top of the packings unexplained by the Janssen theory arises because most of the particle-wall tangential forces in this region are far from the Coulomb yield criterion. The distributions of particle-particle and particle-wall contact forces $P(f)$ exhibit exponential-like decay at large forces in agreement with previous studies.
Grest Gary S.
Landry James W.
Plimpton Stephen J.
Silbert Leonardo E.
No associations
LandOfFree
Confined granular packings: structure, stress, and forces does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Confined granular packings: structure, stress, and forces, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Confined granular packings: structure, stress, and forces will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-18863