Jun 13 – 19, 2015
University of Alberta
America/Edmonton timezone
Welcome to the 2015 CAP Congress! / Bienvenue au congrès de l'ACP 2015!

The coefficient of restitution of inflatable balls

Jun 15, 2015, 2:30 PM
CCIS 1-160 (University of Alberta)

CCIS 1-160

University of Alberta

Oral (Non-Student) / orale (non-étudiant) Industrial and Applied Physics / Physique industrielle et appliquée (DIAP-DPIA) M1-7 Advances in Nuclear Physics and Particle Physics Theory (DNP-PPD-DTP) / Progrès en physique nucléaire et en physique des particules théoriques (DPN-PPD-DPT)


Mr Gaëtan Landry (Dalhousie University)


The bouncing of sports balls is often characterized in terms of the coefficient of restitution, which represents the ratio of the after-impact velocity to the before-impact velocity. While the behaviour of the coefficient of restitution as a function of the internal pressure of the ball has been studied, no theoretical justification has been given for any parametric curve fitted to the data. In this talk, we present a mechanistic model of the ball, leading to a simple two-parameter fit. The model will be compared to several commonly available sports balls.

Primary authors

Dr Alex Georgallas (Dalhousie University) Mr Gaëtan Landry (Dalhousie University)

Presentation materials