| || Oblique Impact Study in Thin Steel Armour Plate
Author : Chopra, A.K. ;Kumar, Ramesh;Chaudhary, K.L.
Source : Defence Science Journal ; Vol:48(2) ; 1998 ; pp 185-195
Subject : 623.4 Armaments and Ballistics;620.1 Material Science and Technology
Keywords : Plate perforation ;Projectile;Rolled homogeneous armour
Abstract : Results of a study on the performance of 10 mm low alloy, rolled-homogeneous armour (RHA) plate when impacted by 20 mm diameter steel ogive-shaped projectile at 15, 30 and 45° angles of attack in the subordnance velocity regime are presented. Experimental results show that 10 mm steel plate provides full protection at 45° obliquity up to a striking velocity of 530 m/s. At low velocity (V < 350 m/s), the plate provides protection at 30° obliquity , but fails to provide protection at an angle of attack of 15°, even at low velocity (V= 300 m/s). It is also observed that normal component of the striking velocity of the projectile is the main cause of plate perforation.