This paper studies the shaped charge jet performance in terms of different liner shapes including conical, bell, hemispherical and bi-conical liners. The critical angles and the relevant flow velocities for the zirconium liner material were calculated analytically and numerically using Autodyn hydro-code. The relationship between the critical collapse angle and the flow velocity was determined for the conditions of jet formation and coherency. Penetration tests according to the standard testing procedures of API-RP34 (Section-II) were performed to validate the numerical predictions of the jet performance of the studied liners. It was found that the four shaped charge liners all produced coherent jets with different performances. The penetration depth of the shaped charges with the bell and the bi-conical liner shapes increased by 10.3% and 22%, respectively, while the crater diameter of shaped charge with hemispherical liner increased by 85% representing the formation of an explosively-formed-projectile (EFP), when they are compared with the corresponding jet characteristics of a conical liner shaped charge.

本文研究了聚能装药射流在不同衬里形状方面的性能，包括锥形、钟形、半球形和双锥形衬里。锆衬里材料的临界角和相关流速使用 Autodyn 水文代码进行分析和数值计算。根据射流的形成和相干性条件确定了临界坍塌角与流速之间的关系。根据 API-RP34 (Section-II) 的标准测试程序进行渗透测试，以验证所研究衬里喷射性能的数值预测。发现四种聚能装药管都产生了具有不同性能的连贯射流。带钟形和双锥形衬里形状的聚能装药的穿透深度分别增加了 10.3% 和 22%，