Interface defeat
Encyclopedia
Interface defeat is when a ceramic
armour system, typically on an armoured fighting vehicle
, defeats a kinetic energy penetrator
at the ceramic's front surface. Above a certain impact velocity
, known as the transition velocity, interface defeat can no longer occur and either penetration
or perforation of the ceramic occurs.
Ceramic
A ceramic is an inorganic, nonmetallic solid prepared by the action of heat and subsequent cooling. Ceramic materials may have a crystalline or partly crystalline structure, or may be amorphous...
armour system, typically on an armoured fighting vehicle
Armoured fighting vehicle
An armoured fighting vehicle is a combat vehicle, protected by strong armour and armed with weapons. AFVs can be wheeled or tracked....
, defeats a kinetic energy penetrator
Kinetic energy penetrator
A kinetic energy penetrator is a type of ammunition which, like a bullet, does not contain explosives and uses kinetic energy to penetrate the target....
at the ceramic's front surface. Above a certain impact velocity
Velocity
In physics, velocity is speed in a given direction. Speed describes only how fast an object is moving, whereas velocity gives both the speed and direction of the object's motion. To have a constant velocity, an object must have a constant speed and motion in a constant direction. Constant ...
, known as the transition velocity, interface defeat can no longer occur and either penetration
Penetration (weapons)
Strictly speaking penetration occurs when a projectile enters a target without passing through it and perforation occurs when the projectile completely passes through the target, but the word penetration is commonly used to refer to either....
or perforation of the ceramic occurs.