Approximate analytical coefficient of restitution formulation for single bead impact with external load, using nonlinear visco-elastic models

Abhishek Chatterjee (1) , Guillaume James (1) , Bernard Brogliato (1)

1 TRIPOP - Modélisation, simulation et commande des systèmes dynamiques non lisses

This work is largely concerned with the calculation of an approximate coefficient of restitution (CoR) associated with nonlinear spring/dashpot models, when a constant external load acts upon the colliding body. Some of the main applications concern well known visco-elastic models such as Kuwabara-Kono, Simon-Hunt-Crosseley, Tsuji-Tanaka-Ishida, etc, however the proposed approach to a very wide class of nonlinear visco-elastic contact models. It is shown that suitable expansions allow to derive a computable expression which provides accurate predictions in a valuable range of external loads and viscosity coefficients.

Domaines: Systèmes dynamiques [math.DS]; Mécanique des solides [physics.class-ph]

Abhishek Chatterjee, Guillaume James, Bernard Brogliato. Approximate analytical coefficient of restitution formulation for single bead impact with external load, using nonlinear visco-elastic models. [Research Report] INRIA Grenoble - Rhone-Alpes. 2021, pp.1-50. ⟨hal-03462750⟩