Abstract

Lightweight ballistic composites offer a host of advantages over traditional metal armor for stopping bullets and fragments in armored vehicles. Military and civilian vehicles armored with metal require higher horsepower engines, heavy suspension systems, and heavy duty hinges. Lightweight composites, however, are easy to install and remove, and increase vehicle life by as much as 50%. Another advantage lightweight composites offer is damping to the vehicle system. Composites reduce vibration and thus increase the comfort and fatigue life of other vehicle components. In this paper the damping behavior of four types of ballistic composites using combinations of glass and extended chain polyethylene (ECPE) is characterized. These composites provide a low cost, lightweight, easy to mold material for vehicle armor. A study of ballistic properties is included and compared to damping behavior.

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