Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : October 07, 2017 - October 09, 2017
Stability of particle-packing structure was numerically studied using distinct element method. Complete spherical shape was assumed for composing particles while the radii were distributed in a certain range. First, the particles were set on lattice points of face-centered cubic structure, and the stability against the gravity was investigated. As a result, the structure was broken when the difference in radii of the particles was large. Then the stability against external load was simulated. In this case, the instability was observed earlier when the radius distribution was wide, whereas the structure was very stable when all particles had the same radius.
