Penetration of a Small Caliber Projectile into Single and Multi-layered Targets

Abstract

The normal penetration of armor-piercing projectiles into single and multi-layered steel plates has been investigated. An experimental program has been conducted to study the effect of spaced and in-contact layered targets on their ballistic resistance. Armor piercing projectiles with caliber of 7.62 mm were fired against a series of single and multi-layered steel targets. The projectile impact velocities were ranged from 300-600 m/s, whereas the total thicknesses of the tested single, spaced and in-contact layered steel targets were 3 mm. The penetration process of different tested target configurations has been simulated using Autodayn-2D hydrocode.The experimental measurements of the present work were used to discuss the effect of impact velocity, target configurations and number of layers of different spaced and in-contact layered steel targets on their ballistic resistance. In addition, the post-firing examination of the tested targets over the used impact velocity range showed that the single and each layer of spaced and in-contact laminated steel targets were failed by petalling. Finally, the obtained experimental measurements were compared with the corresponding numerical results of Autodyn-2D hydrocode, good agreement was generally obtained.

Ballistic Impact Response of an Aluminum Sandwich Panel With Auxetic Honeycomb Core Structure

“…Ballistic test measurements, post-firing examinations and test procedures are the same as that performed by Abdelwahed et. al [14]. Figure (2) shows the scheme of the used ballistic setup.…”

“…Similar trends to the effect of horizontal rib thickness on the projectile velocity-time histories are predicted, the increase in the diagonal thickness leads to a decrease in the projectile velocity. In addition, X direction is better than Y direction in absorbing the projectile velocity as depicted in figure (14).…”

“…Comparison between the projectile velocities in X&Y directions, at Th = 9 mm, Vi = 650 m/s. Figure (14). Comparison between the projectile velocities in X&Y directions, at Td = 1 mm, Vi = 650 m/s.…”

“…Substantial efforts have been devoted to the projectile impact behavior of metallic honeycomb panels through experimental [7,10,14], analytical [15][16] and numerical methods [16]. Numerical methods, typically the finite element analysis (FEA), have been employed by some researchers to study in depth the perforation process of HSPs subjected to low-velocity [16] and high-velocity [17] projectiles.…”

Effect of Prestressing Multilayer Steel Armor on Its Impact Resistance to Blunt Rigid Projectiles

“…M.A. Abdel-Wahed et al [1] studied the ballistic resistance of monolithic and layered steel armors. The layered armors were in double and triple layers both in contact and spaced by air gaps.…”