活性复合动能杆对混凝土靶侵爆效应研究  

Penetration and explosion effects of reactive composite kinetic rod against concrete Target

作　　者：刘国政 郭香华 张庆明[1] LIU Guozheng;GUO Xianghua;ZHANG Qingming(School of Mechatronics, Beijing Institute of Technology, Beijing 100081, China)

机构地区：[1]北京理工大学机电学院,北京100081

出　　处：《兵器装备工程学报》2022年第2期14-20,共7页Journal of Ordnance Equipment Engineering

摘　　要：基于25 mm口径弹道炮发射平台,进行了活性复合动能杆在1800 m/s速度条件下对C40混凝土靶的侵彻实验,实验结果表明:尽管活性杆的侵彻能力较低,但其侵爆效应对混凝土内部结构造成预损伤,从而降低了靶体强度,使得随进的钨合金杆侵彻效率明显提高。另外,应用物质点法在模拟材料大变形方面的优势,在MPM3D中引入相关材料模型,对活性复合动能杆侵彻混凝土进行了数值模拟研究,计算结果与实验数据吻合较好。在此基础上得到了PTFE/Al杆和PTFE杆对混凝土造成的完全损伤域和压力峰值衰减曲线,对比了2种材料对混凝土造成的破坏面积、预损伤范围、冲击强度,体现了活性材料侵爆耦合作用对混凝土的高效毁伤。Based on the 25 mm caliber ballistic gun,the penetration experiment of the reactive composite kinetic rod on the C40 concrete target under the condition of 1800 m/s velocity was carried out.The experimental results show that although the penetration ability of the reactive rod is low,its penetration and explosion effects caused pre-damage to the concrete target,thereby reducing the strength of the target,the penetration efficiency of the next tungsten alloy rod has been significantly improved.In addition,applying the advantage of material point method in simulating large deformation of materials,we embedded relevant material models in MPM3D,and numerically simulated the penetration of reactive composite kinetic rods into concrete.The calculation results are in good agreement with the experimental data.On this basis,the damage area and pressure peak attenuation curve caused by the PTFE/Al rod and the PTFE rod to the concrete were obtained.We compared the damage area,pre-damage range,impact strength of the two materials to concrete,which embodies the efficient damage to concrete caused by penetration and explosion effects of reactive material.

关 键 词：PTFE/Al活性材料 混凝土 侵爆效应 预损伤 物质点法 

分 类 号：TJ410[兵器科学与技术—火炮、自动武器与弹药工程]