Interface defeat

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.

References

Lundberg, Patrik (2004). "Interface Defeat and Penetration: Two Modes of Interaction between Metallic Projectiles and Ceramic Targets" (PDF). Acta Universitatis Upsaliensis. Retrieved 2006-07-24.

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