高压物理学报2025，Vol.39Issue(2)：63-73,11.DOI:10.11858/gywlxb.20240865
圆柱形装药爆炸驱动球形破片的飞散特性
Dispersion Characteristics of Spherical Fragments Driven by Cylindrical Charge
申仕良 1李金柱 1马峰 1姚志彦1
作者信息
- 1. 北京理工大学爆炸科学与安全防护全国重点实验室,北京 100081
- 折叠
摘要
Abstract
To investigate the dispersion characteristics of spherical tungsten fragments driven by a cylindrical charge,dispersion tests were conducted on a warhead with spherical prefabricated fragments.Considering the limitation of traditional comb targets,which can only measure the maximum velocity instead of the velocity distribution of the fragment group,a novel crossed-comb target was designed and fabricated.This velocity measurement device successfully recorded the pulse signals generated by multiple fragments penetrating the target and the impact positions.Numerical simulations were conducted using LS-DYNA to calculate the dispersion characteristics of spherical fragments driven by cylindrical charges.The results indicate that the numerical simulation results agree well with the test data.The designed crossed-comb shaped target can accurately measure the scattering velocities of multiple fragments.Increasing the length-to-diameter ratio can mitigate the effect of rarefaction waves at both ends of the charge on the fragment velocities;however,this mitigating effect diminishes as the length-to-diameter ratio continues to increase.关键词
交叉梳状靶/测速装置/预制破片/飞散速度/长径比Key words
cross-comb target/velocity measurement device/prefabricated fragments/dispersion velocity/length-to-diameter ratio分类
数理科学引用本文复制引用
申仕良,李金柱,马峰,姚志彦..圆柱形装药爆炸驱动球形破片的飞散特性[J].高压物理学报,2025,39(2):63-73,11.
