title: Collision of one-dimensional nonlinear chains.
abstract: We investigate one-dimensional collisions of unharmonic chains and a rigid wall. We find that the coefficient of restitution (COR) is strongly dependent on the velocity of colliding chains and has a minimum value at a certain velocity. The relationship between COR and collision velocity is derived for low-velocity collisions using perturbation methods. We found that the velocity dependence is characterized by the exponent of the lowest unharmonic term of interparticle potential energy.
authors.affiliation: Department of Physics, Tohoku University, Sendai, Japan.
authors.forename: Shin-Ichiro
authors.initials: S
authors.lastname: Nagahiro
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Hayakawa