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.
Famous quotes containing the word defeat:
“Unkindness may do much,
And his unkindness may defeat my life,
But never taint my love.”
—William Shakespeare (1564–1616)