Numerical simulation of projectile oblique penetration into damping composite armor

doi:10.19936/j.cnki.2096-8000.20210728.009

Abstract

Abstract: The process of 12.7 mm penetrating alumina/damping layer/UHMWPE composite bulletproof armor was simulated by ANSYS/LS-DYNA finite element software. The energy absorption of tungsten alloy core penetrating the target plate at different angles and speeds was calculated, and the effect of damping layer thickness on the energy absorption of composite armor was investigated. The calculation results show that the energy absorbed by the composite target increases with the increase of the oblique angle of the composite target. By simulating the oblique penetration process of the penetrating projectile with different speeds into the composite armor, it is found that the composite armor shows the best energy absorption effect in the range of 700 m/s~850 m/s velocity, and the thickness of the damping layer at different positions in the composite armor to achieve the best energy absorption effect is different. This work provides a reference for the follow-up study of the medium and high-speed impact resistance of damped composite structures.

Key words: numerical simulation, oblique penetration, UHMWPE, damping material, ballistic limit, composite armor

CLC Number:

TB332

WANG De-pan, LIANG Sen, ZHOU Yue-song, LIU Long. Numerical simulation of projectile oblique penetration into damping composite armor[J]. COMPOSITES SCIENCE AND ENGINEERING, 2021, 0(7): 55-62.

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