Laver & Wood’s Cricket Bat Lore Ch13. The Coefficient of Restitution and Centre of Percussion – What are these?
Before becoming a bat maker James trained as a Construction Engineer. He has attempted to explain some engineering principles as they apply to cricket bats.
The performance of a cricket bat is dictated by the physical properties of both the bat & ball, where the bat connects with the ball, and the relative velocities of both on impact. The measurement of the result of the collision between the bat and ball is known as the “Coefficient of Restitution”.
The Coefficient of Restitution is a simple relationship between the velocity of a ball just before impact dropped onto a solid surface and the resulting velocity immediately after impact. Measuring the Coefficient of Restitution allows a bat maker to make decisions about a particular cleft based on hard data, rather than intuitive feel.
More Laver & Wood Cricket Bat Lore chapter introductions can be found below.
10. Handle Breakage
23. Knocking In
24. Oiling Bats
25. Moisture Damage