2種類のdiskをランダム充填した系におけるdiskの接触ネットワーク

概要

論文の詳細を見る
Disk contact networks in binary disk systems under compression were measured by using photoelasticity. Two types of acrylic resin cylinders with diameters of 8 mm or 10mm and a height of 10 mm were used as binary disks, which were packed at random into the 2 dimensional cell. Heterogeneous stress transmission in the system under compression was observed. The disk contact networks defind by connecting the centers of the contact disks were obtained by varying the ratio of 10 mm disk from 0 to 0.3. The distributions of coordination number and number of loop's path were obtained by analyzing the disk contact networks. Although the regular structure (triangular lattice in the network)appears at the single disk systems, the disorder in the networks is observed in a binary disk system. A drastic change in the networks was observed when the binary disk system was used instead of the single disk system.