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Studies on Jet Formation and Penetration for a Double-Layer Shaped Charge

机译：双层装药射流形成与侵彻研究

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摘要

An analysis for liner collapsing and jet /slug formation of a double-layer shaped charge (DLSC) is presented. Variations of the collapse angle, collapse velocity, and jet velocity of the DLSC are discussed. Numerical simulations based on the Lee-Tarver model are performed to have an insight into the jet formation. Ballistic tests are conducted using a conical (60°) metal liner 56 mm in diameter to have a contrast with an ordinary shaped charge jet. It is shown that the collapse angle and velocity are both increased by the convergent detonation wave in the DLSC. The jet velocity, kinetic energy, and ballistic capability are significantly increased by using the DLSC, and the DLSC is an efficient way to improve shaped charge performance.
机译：提出了对衬里瓦解和双层成形装药（DLSC）的射流/弹塞形成的分析。讨论了DLSC的塌陷角，塌陷速度和射流速度的变化。执行基于Lee-Tarver模型的数值模拟，以深入了解射流的形成。使用直径为56 mm的圆锥形（60°）金属衬管进行弹道测试，以与普通形状的电荷射流形成对比。结果表明，在DLSC中，会聚爆震波使崩塌角和速度均增加。通过使用DLSC可以显着提高喷射速度，动能和弹道能力，而DLSC是提高成形装药性能的有效方法。

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