Transmission des forces dans un milieu composé de grains non sphériques

Details Transmission des forces dans un milieu composé de grains non sphériques Transmission des forces dans un milieu composé de grains non sphériques

2007-06-27

arxiv.org/abs/0706.4007v1

Physics

Classical Physics

Scientific paper

We perform a detailed analysis of the contact force network in a dense confined packing of pentagonal particles simulated by means of the contact dynamics method. The effect of particle shape is evidenced by comparing the data from pentagon packing and from a packing with identical characteristics except for the circular shape of the particles. A counterintuitive finding of this work is that, under steady shearing, the pentagon packing develops a lower structural anisotropy than the disk packing. We show that this weakness is compensated by a higher force anisotropy, leading to enhanced shear strength of the pentagon packing. We revisit "strong" and "weak" force networks in the pentagon packing, but our simulation data provide also evidence for a large class of "very weak" forces carried mainly by vertex-to-edge contacts. The strong force chains are mostly composed of edge-to-edge contacts with a marked zig-zag aspect and a decreasing exponential probability distribution as in a disk packing.

Affiliated with

Also associated with

No associations

Rating

Transmission des forces dans un milieu composé de grains non sphériques 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 Transmission des forces dans un milieu composé de grains non sphériques, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transmission des forces dans un milieu composé de grains non sphériques will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-255826