| 头部加肋板弹体正侵彻/贯穿混凝土靶研究 |
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| 引用本文： | 李伟,张雪岩,张爽,武海军.头部加肋板弹体正侵彻/贯穿混凝土靶研究[J].北京理工大学学报,2018,38(S2):209-214. |
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| 作者姓名： | 李伟 张雪岩 张爽 武海军 |
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| 作者单位： | 北京理工大学 爆炸科学与技术国家重点实验室, 北京 100081,北京理工大学 爆炸科学与技术国家重点实验室, 北京 100081,北京理工大学 爆炸科学与技术国家重点实验室, 北京 100081,北京理工大学 爆炸科学与技术国家重点实验室, 北京 100081 |
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| 摘 要： | 针对头部加肋板弹体正侵彻/贯穿混凝土靶板的问题,进行受力分析并依此建立正侵彻理论模型.模型基于"开坑段+隧道段+剪切冲塞段"三阶段侵彻模型与空腔膨胀理论,对头部加肋板弹体与卵型头部弹体正侵彻/贯穿混凝土靶过程进行理论计算并做对比分析,且计算和对比分析了头部形状参数对头部加肋板弹体侵彻性能的影响.结果表明,带肋板型头部弹体贯穿剩余速度低,轴向过载大,侵彻能力比卵形头部弹体差,且增加肋板个数、宽度、小凸缘顶面圆直径或减少肋板高度均增加轴向过载,降低侵彻能力.
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| 关 键 词： | 带肋板型头部 正侵彻 贯穿速度 混凝土 |
| 收稿时间： | 2018/12/1 0:00:00 |
The Research on Projectile with Ribbed Head Penetrating in to Concrete Target |
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| LI Wei,ZHANG Xue-yan,ZHANG Shuang and WU Hai-jun.The Research on Projectile with Ribbed Head Penetrating in to Concrete Target[J].Journal of Beijing Institute of Technology(Natural Science Edition),2018,38(S2):209-214. |
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| Authors: | LI Wei ZHANG Xue-yan ZHANG Shuang and WU Hai-jun |
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| Institution: | State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 10081, China,State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 10081, China,State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 10081, China and State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 10081, China |
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| Abstract: | A penetration model for projectile with ribbed head penetrating into concrete target is established, based on dynamic spherical cavity-expansion theory of the concrete material and three-staged theory composed of crater, tunnel and plug. Compared with the oval-shaped projectile, the projectile with ribbed head has characteristics of lower residual velocity, larger axial overload and less inadequate penetration capacity. Finally, the influences of structural parameters are analyzed, including the number,width and height of ribs. |
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| Keywords: | the projectile with ribbed head penetration velocity concrete |
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