• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2015, Vol. 51 ›› Issue (7): 169-173.doi: 10.3901/JME.2015.07.169

• 数字化设计与制造 • 上一篇    下一篇

Q235钢单层板对弹体抗撞击特性研究

邓云飞1 张伟2 孟凡柱1 曹宗胜2 李剑锋1   

  1. 1.中国民航大学航空工程学院;
    2.哈尔滨工业大学航天学院
  • 出版日期:2015-04-05 发布日期:2015-04-05
  • 基金资助:
    中国民航大学科研启动资金(2013QD03X)和中央财经高校(3122014D018)资助项目

Investigation of the Ballistic Resistance of Q235 Steel Monolithic Targets

DENG Yunfei1, ZHANG Wei2, MENG Fanzhu2, CAO Zongsheng2, LI Jianfeng1,   

  1. 1.College of Aeronautical Engineering, Civil Aviation University of China;
    2.School of Astronautics, Harbin Institute of Technology
  • Online:2015-04-05 Published:2015-04-05

摘要: 为了分析外来撞击物对单层板结构的撞击特性及机理,以及结构防护特性的影响因素,利用一级气炮进行单层金属板撞击试验,同时利用理论模型对试验结果进行分析。根据试验结果分析,特别地,在理论模型中引入一个因子对靶体厚度进行修正。基于撞击试验数据,通过理论模型研究不同厚度的单层金属板对卵形,平头以及半球形头杆弹的抗侵彻特性,揭示了靶体厚度和弹体头部形状对抗侵彻性能与失效模式的影响。理论模型计算结果与试验数据进行了比较,发现二者吻合得较好。理论模型计算结果试验表明:靶体弹道极限随弹体头部曲率直径比(Caliber-radius-head, CRH )先增大后减小,最后变化趋势比较平缓。在一定的厚度范围内,靶体的弹道极限随其厚度增加而增加。

关键词: 光整加工, 流体磨料

Abstract: The monolithic plates are impacted by one stage gas gun in order to reveal the perforation characteristic and mechanism, the influence of the ballistic resistance when then structure impacted by external objects, and also the experimental results are studied by theoretical model. Especially, a factor is used to revise the thickness of target in the theoretical model according to the analyses of experimental results. Based on the experimental data, the theoretical studies are carried out to study the ballistic performance of monolithic steel targets of various thicknesses impacted by projectiles with ogival, blunt and hemispherical nose shape, and the influence of thickness of plates and nose shape of projectiles on the ballistic limit velocities and failure models is revealed. In general, good agreement is obtained between the predictions from analytical model and the experimental results. The results of analytical model indicate that the ballistic limit velocities firstly increase then decrease with the increase of caliber-radius-head(CRH). Moreover, the ballistic limit velocities of targets increase with the increase of thickness in a certain range.

Key words: ballistic resistance, impact, penetration, projectile, target

中图分类号: