Nonfailure Rebound Properties of Wooden Composites


Class: BE210
Group: W5
Members:

Shun Loong Chua
Adam Hannan
Jason Ho
Sachin Puranik
Steve Tsui

Date: April 2004

Full Text

Abstract: 

Rebound testing provides insights into how materials will act under single and repeated stresses and the effectiveness of the material within its designed operational environment. Whether the material can handle large single stresses or maintain its condition after multiple stresses over the lifetime of the object are important criteria, especially for the protective equipment industry. This industry includes bike helmets, protective padding, shoe designs and car bumpers.  In particular, safety factors depend on:


ratio of ultimate stress to allowable (design, safe or working) stress

number of repeated stresses allowable for the lifetime of the material

maximum level of stress that a part will be permitted to endure