Compaction and Arches in Packings of Pentagons

VIDALES, A M; PUGNALONI, L.A.; IPPOLITO, I.

Orsay, Francia

Congreso; Traffic and Granular Flow ´07; 2007

We present results of the compaction and arching of regular pentagons from simulation. We analyze the behavior of density as a function of the number of taps performed on the system and we also make an annealing process on the packing. A detailed characterization of the problem of arch formation during the tapping process is also presented and we discus the role of arch distribution in the compaction of the system and in the final density attained by it. The results obtained show that pentagons display new features in the compaction dynamics as compared with round objects.