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1 Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa

1 2020

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Ceramic Armour for Armoured Vehicles Against Large-Calibre Bullets

Maystrenko Anatoliy L., Kushch Volodymyr I., Pashchenko Evgeniy A., Kulich Vitaliy G., Neshpor Olecksiy V., Bisyk Sergiy P.

Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa

2020

Vol. 11, Nr 1 (39)

9--16

Modelling the armour-piercing bullets B-32 calibre 12.7 mm penetration into the double-layer ceramic-composite armour has been performed for the armour blocks of two designs. The first one is a layer of ceramic square tiles supported by the glass or polyamide fabric. Modelling and subsequent ballistic tests have shown that the conical Hertz crack localized in the ceramic tile is formed. The tile is destroyed from the spread of radial cracks, and the entire armour unit becomes unable to sustain the repeated hit of the bullet. In the second case, the armour block consists of the discrete epoxy-filled cylindrical ceramic elements with spherical ends. The advantage of this "discrete" armour is localization of the damage zone and thus an ability to sustain the multiple bullet hits. The ballistic tests of the compared armour units have shown that both provide effective additional protection of light-armoured vehicles against the normal impact of the calibre 12.7 mm bullet.