弹丸侵彻铝合金靶过程中炸药的动态响应

乔相信;于锋;李广

火炸药学报 ›› 2013, Vol. 36 ›› Issue (6) : 31-35.

  • 主管:中国科学技术协会

    主编:魏 卫

    ISSN 1007-7812

     
  • 主办:中国兵工学会与中国兵器工业第204研究所共同

    出版:《火炸药学报》 编辑部

    CN 61-1310/TJ

火炸药学报 ›› 2013, Vol. 36 ›› Issue (6) : 31-35.

弹丸侵彻铝合金靶过程中炸药的动态响应

  • 乔相信, 于锋, 李广
作者信息 +

Dynamic Response of Explosive in Projectile Penetrating Aluminum Alloy Target Process

  • QIAO Xiang-xin , YU Feng , LI Guang
Author information +
文章历史 +

摘要

我们已得到Charles L. Mader的最近科研报告叁份及Los Alamos新书优待卷贰份,现将有关资料与图书内容,摘要报导如下: ①"PBX 9502的性质" C. L. Mader著应用Bkw状态方程与多次冲击的森林之火模型,计算PBX9502炸药的性能LA—9053—MS(1981·10) ②"二维、三维爆轰波与铜板的相互作用" C.L.Mader, J. D. Kershner著,应用二维与三维研究在金属薄板上,炸药的多点起爆效应。

Abstract

To study the stress change rule of the charge of projectile penetrating hard target, the numerical calculation for the pressure changes and plastic deformation of charge generated in projectile penetrating aluminum alloy target process were carried out by using LS-DYNA dynamic analysis software. The pressure changes and unit deformation occurred on the observation points were analyzed. The results indicate that the plastic deformation and ignition in head explosive in penetrating process are mainly caused by high compression. With the improvement of projectile velocity, alternative actions between compressive load and tensile load gradually transit to tensile load which plays a main role in tail explosive. Its edges are mainly destroyed by shear load, leading to damage of the charge. The loading stress of central explosive is low, having lesser damage. The experimental results verify the rationality of the simulation.

关键词

爆炸力学 / 弹丸 / 侵彻 / 装药 / 铝合金靶 / 动态响应 / 数值计算

Key words

explosion mechanics / projectile / penetrate / charge / aluminum alloy target / dynamic response / numerical simulation

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导出引用
乔相信, 于锋, 李广. 弹丸侵彻铝合金靶过程中炸药的动态响应. 火炸药学报. 2013, 36(6): 31-35
QIAO Xiang-xin , YU Feng , LI Guang. Dynamic Response of Explosive in Projectile Penetrating Aluminum Alloy Target Process. Chinese Journal of Explosives & Propellants. 2013, 36(6): 31-35

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爆炸冲击与先进防护

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