Research On Penetration Effects Of Shaped Charge With Non-typical Liner

Traditionally, shaped charge warhead is the main negating mechanism against armored targets. However, with the growing demand of high efficient damage to concrete target in the modern battlefield, it poses a great challenge to the lethality of shaped charge warhead. It is necessary to enhance the lethality of shaped charge warhead against multi-target, which is becoming a hotspots and research frontier in ammunition field.The jet formation and penetration behaviors of shaped charge with non-typical liner are researched by AUTODYN code simulation in this paper. The jet formation characteristics of non-uni-thickness aluminum liner is simulated, and the influence of cone angle and thickness of liner on the penetration performance are obtained, by which the approach to realize the maximum penetration depth of shaped charge against concrete target is presented. The jet formation behavior of titanium alloy liners of uniform and changing thickness are simulated, and the influence of shaped charge parameters on the penetration performance of shaped charge against concrete target is obtained, by which the way to realize deeper penetration and larger diameter of penetration hole caused by titanium liner against concrete target is presented. The jet formation behavior of non-typical double-tapered copper, aluminum and titanium alloy liner are simulated, and the influence of double cone angle and thickness of liner on penetration performance are obtained, by which the design method of non-typical double-tapered shaped charge liner is presented. The jet formation behavior of shaped charge liner of non-typical conic node is simulated, and the influence of the height and diameter of cylindrical conic node on the jet formation behavior and its velocity distribution are investigated. The shaped charge parameters are optimized by orthogonal design.