PELE弹侵彻钢筋混凝土扩孔尺寸研究  

Study on the reaming size of PELE shell penetration reinforced concrete

作　　者：贾乾 陈放[1] 李慧慧[1] 张亮亮[1] JIA Qian;CHEN Fang;LI Huihui;ZHANG Liangliang(State Key Laboratory of Explosive Science and Technology,Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]北京理工大学爆炸科学与技术国家重点实验室,北京100081

出　　处：《兵器装备工程学报》2023年第11期67-73,共7页Journal of Ordnance Equipment Engineering

摘　　要：为了研究横向效应弹(PELE)中不同侵彻速度、壳体刻槽长度和塞块厚度等因素对钢筋混凝土靶横向效应的影响,采用LS-DYNA有限元仿真软件,对PELE弹丸侵彻钢筋混凝土靶进行数值计算。通过正交优化分析不同结构的PELE对钢筋混凝土靶侵彻破坏效应的影响,并对该仿真结果进行试验验证其正确性。结果表明:当弹体侵彻速度为900 m/s、刻槽长度为80 mm和塞块厚度为10 mm时,钢筋混凝土靶破坏的通孔尺寸最大为564.3 mm,PELE弹丸的横向效果最佳。同时在壳体表面进行刻槽,可以降低壳体结构的强度,使得弹体中部能够快速膨胀,提高弹体对靶板的扩孔效应,壳体刻槽长度是PELE弹丸对钢筋混凝土靶通孔直径D的主要影响因素,塞块厚度次之,弹体侵彻速度最小。In order to study the effects of different penetration speeds,shell grooving lengths and plug block thicknesses on the transverse effects of reinforced concrete targets in transverse effect projectiles(PELE),LS-DYNA finite element simulation software is used to numerically calculate the penetration of PELE projectiles into reinforced concrete targets.The influence of PTLE of different structures on the penetration failure effect of reinforced concrete target is analyzed by orthogonal optimization,and the correctness of the simulation method is verified by experiments.The results show that when the penetration speed of the projectile body is 900 m/s,the groove length is 80 mm and the thickness of the plug block is 10 mm,the through-hole size of the reinforced concrete target failure is up to 564.3 mm,and the lateral effect of PELE projectile is the best.At the same time,grooving on the surface of the shell can reduce the strength of the shell structure and enable the middle of the projectile to expand rapidly,improve the reaming effect of the projectile on the target plate,and the length of the shell groove is the main influencing factor of PELE projectile on the diameter D of the reinforced concrete target through-hole,followed by the thickness of the plug block,and the penetration speed of the projectile body is the smallest.

关 键 词：横向效应 钢筋混凝土靶 PELE 扩孔尺寸 数值模拟 

分 类 号：TJ301[兵器科学与技术—火炮、自动武器与弹药工程]