Article

Collision of one-dimensional nonlinear chains.

Department of Physics, Tohoku University, Sendai, Japan.
Physical Review E (Impact Factor: 2.31). 04/2003; 67(3 Pt 2):036609. DOI: 10.1103/PhysRevE.67.036609
Source: PubMed

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.

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