利用ANSYS/LS-DYNA软件对CEW战斗部成型进行了数值模拟,并通过加一层外沿装药和壳体的方式使周围MEFP实现了很好的成型效果。然后对药型罩的壁厚对CEW成型性能的影响进行了模拟分析,发现中心药型罩为3mm时形成的EFP为长径比较大的中心密实的弹丸,且速度较高。周边药型罩在壁厚2mm时形成的EFP具有可观质量及速度。数值模拟结果表明,药型罩存在一个最佳的壁厚,在此壁厚下EFP具有较高的速度、合适的长径比、易于稳定飞行的外形。

It was studied that the modeling of combined effects warhead (CEW) exploded by ANSYS/LS-DYNA software. The modeling of the ring smaller MEFP could be very well when the shell and a layer of explosive were added. The influence of the cartridge of the liner on the performance of the CEW was analyzed. The result indicates that when the cartridge of the liner in the center is 3mm, the EFP will be a speedy penetrator, which is dense in the center, with a big ratio of length and diameter. While the cartridge of the liner aronud is 2 mm, the mass of EFP is quite suitable, velocity is enough. The consequence of numerical simulation indicates that the liner has a suitable cartridge so that the velocity of EFP is high enough, the ratio of length and diameter is suitable, and its configuration is good for stable flight.