Composite Armour is a type of armour plate fitted to armoured fighting vehicles. It comprises layers of hard steel and heat resistant ceramics or glass to withstand HEAT ammunition better than normal steel. A typical composite armour may comprise layers of one inch thick steel plate sandwiched with plates of ordinary glass. When struck by a projectile, the glass shatters into many small pieces, absorbing a great deal of energy from the projectile in the process. The glass shards, while dangerous to people and organic materials, are too soft to penetrate the steel plates which safely contain them. The glass layers then effectively reduce the speed of the projectile to a level at which it can no longer penetrate the hard steel layers. Research Composite Armour