为研究等厚叠合靶抗破片侵彻的能力,采用12.7 mm标准弹道枪发射质量为8.05 g、直径为9.4 mm的钨球,分别撞击单层8 mm厚与4层8 mm(每层靶板厚度为2 mm)厚的Q235钢靶。通过R-I公式得出钨球侵彻两种不同结构靶板的弹道极限。在此基础上,验证了数值仿真所选用模型及参数的有效性,并采用数值仿真方法研究Q235钢靶分层结构抗4种不同形状破片侵彻的性能。结果表明,分层靶的抗侵彻性能与靶板的分层结构、破片形状以及破片的侵彻速度均有关系。但是总体来看,总厚度不变时,靶板分层数大于2以后,层数越多抗侵彻能力越弱。研究结果对靶板的抗侵彻性能设计及破片战斗部的设计均具有参考价值。

In order to study the anti-fragment penetration ability of composite target of equal thickness, a 12.7 mm standard ballistic gun was used to launch a tungsten ball with a mass of 8.05 g and a diameter of 9.4 mm. The ballistic limit of tungsten ball penetrating two different structural targets was obtained by R-I formula. On this basis, the validity of the selected models and parameters for numerical simulation was verified and the numerical simulation method was used to study the performance of the Q235 steel target layer structure against the penetration of four different shapes. The results show that the performances of the layered target are related to the layered structure of the target, the shape of fragments and the penetration speed of fragments. However, in general, when the total thickness is constant, after the target layer number is greater than 2, the more the number of layers, the weaker the penetration resistance. The research results have reference value for the design of anti-elastic performance of target and fragment warhead.