多模毁伤元形成与侵彻效应的数值模拟

研究改变起爆方式使Octol炸药和球缺紫铜药型罩的柱锥型战斗部形成爆炸成型弹丸和杆式侵彻体两种毁伤元,采用AUTODYN-2D软件对点起爆和环形起爆方式下毁伤元形成与侵彻装甲钢靶进行数值模拟,分析起爆位置对毁伤元成形和侵彻能力的影响. 数值模拟结果表明,相同战斗部结构在5Dk(Dk为装药直径)炸高下,理想环形起爆半径条件下形成的杆式侵彻体对装甲钢的侵彻深度约为爆炸成型弹丸侵彻深度的2倍.

Numerical Simulation of the Formation of Multimode EFP and Its Penetration Effect to RHA

Using different detonation modes in forming(explosively formed projector,EFP) and(stretching rod penetrator,SRP) and based on the structure of cone-cylinder multimode warhead with hemispherical copper liner and octol explosive,EFP formation process with single point at axis and SRP with ring shaped multipoint detonation together with their penetration ability to RHA are simulated using the AUTODYN-2D software.The formation process and penetration ability of damaging cell influenced by different detonation positions are analyzed.Numerical simulation result demonstrated that at 5Dk(Dk=charge diameter)standoff with the same warhead structure,the penetration depth to RHA of SRP formed under ideal ring detonation is about twice the penetration depth of EFP.