爆炸与冲击2024，Vol.44Issue(8)：82-93,12.DOI:10.11883/bzycj-2024-0026
中口径多环境枪弹致伤效应研究
A study on injury effect of medium-caliber multi-environment bullets
摘要
Abstract
To investigate the wound effectiveness of cross-medium bullets,gelatin is chosen as a simulated human target.The numerical simulation of the penetration process of the designed 7.62 mm multi-environment bullet into the simulated target is conducted using LS-DYNA software.The motion of the bullet and the changes in the target cavity are analyzed.By utilizing a three-degree-of-freedom rigid body motion model,the theoretical variations of bullet motion are obtained.In the same time,the penetration experiment was carried out by using multi-parameter synchronous measurement techniques.The results show that the numerical simulation agrees well with the experimental observations,effectively reproducing the penetration process and the wound effects of the multi-environment bullet.The theoretical model exhibits small errors compared to the experimental results but accurately predicts the motion characteristics of the bullet in the target.By employing a cavity structure,the stability of the bullet's motion across different media is improved.Compared to the traditional 56-type 7.62 mm rifle bullet,the designed bullet demonstrates longer stable flight time,greater distance,slower velocity decay,smaller deflection angle during tumbling phase,and comparable maximum cavity,permanent cavity,and energy transfer efficiency.It also exhibits a certain killing effect on the target.The research findings enrich the design theory of bullets and provide data support for the optimization design of new lightweight ammunition.关键词
多环境/枪弹/致伤效应/明胶/空腔Key words
multi-environment/bullet/injury effect/gelatin/cavity分类
数理科学引用本文复制引用
刘坤,王艺霏,康宝,刘亚雷,宋杰,李忠新,吴志林..中口径多环境枪弹致伤效应研究[J].爆炸与冲击,2024,44(8):82-93,12.基金项目
国家自然科学基金(12172180,11602025) （12172180,11602025）
武警部队基金(WJ-2022-WJ2020A020040) （WJ-2022-WJ2020A020040）
