38 citations · 57 across the 4 of their papers we have counts for
8 papers
Simulation of cohesive head-on collisions of thermally activated nanoclusters
Hiroto Kuninaka, Hisao Hayakawa
Impact phenomena of nanoclusters subject to thermal fluctuations are numerically investigated. From the molecular dynamics simulation for colliding two identical clusters, it is fo…
Super-elastic collisions of thermal activated nanoclusters
Hisao Hayakawa, Hiroto Kuninaka
Impact processes of nanoclusters subject to thermal fluctuations are investigated, theoretically. In the former half of the paper, we discuss the basis of quasi-static theory. In t…
Why Does Zipf's Law Break Down in Rank-Size Distribution of Cities?
Hiroto Kuninaka, Mitsugu Matsushita
We study rank-size distribution of cities in Japan on the basis of data analysis. From the census data after World War II, we find that the rank-size distribution of cities is comp…
Contact and Quasi-Static Impact of a Dissipationless Mechanical Model
Hiroto Kuninaka, Hisao Hayakawa
Collisions and contacts of elastic materials are numerically and theoretically investigated. Using a two-dimensional spring-mass model with defect particles under the free boundary…
Theory of the inelastic impact of elastic materials
Hisao Hayakawa, Hiroto Kuninaka
We have reviewed recent developments of the theory of the impact for macroscopic elastic materials. This review includes (i) standard theories for the normal impact and the oblique…
The Simulation of the Inelastic Impact
Hiroto Kuninaka, Hisao Hayakawa
The coefficient of normal restitution (COR) in an oblique impact is theoretically studied. Using a two-dimensional lattice models for an elastic disk and an elastic wall, we invest…