Study on Anti-Penetration Performance of Semi-Cylindrical Ceramic Composite Armor against 12.7 mm API Projectile

To explore the anti-penetration performance of specially shaped ceramic/metal composite armor, such an armor is designed and fabricated using a semi-cylindrical projectile resistant ceramic metal back plate, its for 12.7 mm armor-piercing incendiary (API) (also known as 0.50 caliber API projectile) investigated experimentally numerically. The results show that due to significant attitude deflection during penetration, penetration into quite different from conventional homogeneous which can be roughly divided following four stages: asymmetric erosion projectile, cone squeezing movement, plate failure exit. mode mainly dishing deformation petaling failure. When obvious occurs breaches in are elliptical varying degrees, height size petals apparently different. area zones according performance. influence ratio diameter core ? on studied under constant areal density. effect small when less than 2, strongest close 2. With increase initial velocity gradually weakened, increased.