Work equivalent composite coefficient of restitution

For collisions between hard bodies that have dissimilar material properties, a composite coefficient of restitution (COR) can be calculated if, for each body, the material properties and COR values for self-similar collisions are known. The composite COR represents the energy dissipated during a collision between materially-dissimilar bodies. This analysis of energy distribution during impact extends the usefulness of the measured values for COR by obtaining the separate dissipation from each body of a collision pair.