2A12铝合金薄板对卵形头弹抗冲击性能研究

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摘要利用轻气炮撞击实验研究卵形弹丸冲击总厚度相等的2A12铝合金单层板和双层板，分析靶板分层和板间间隙对靶板失效模式以及抗冲击性能的影响，通过高速相机图片获取弹体速度数据。实验结果表明，单层板的弹道极限高于双层板的弹道极限，包括间隙式和接触式，并且接触式双层板的弹道极限高于间隙式双层板。随着弹体初始速度增加，靶体结构对其抗侵彻性能的影响随之减小。此外，利用Abaqus软件建立了数值模拟模型对实验工况进行了计算，将数值模拟和实验结果进行了对比，两者之间存在较好的一致性，这也表明数值模拟能够有效地测靶体的弹道极限。

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	郝鹏
	卿光辉
	李建峰
	邓云飞
	魏刚

关键词 ：冲击, 弹体, 双层靶, 弹道极限

Abstract：

The monolithic and double-layered plates of 2A12 aluminum alloy are normally im-pacted by ogival-nosed projectiles with the help of a gas gun, the effect of layering and gap of plates on the ballistic resistance is revealed, and also the velocities of the projectiles are obtained from the photos of high-speed camera. Based on the experimental results, it indicates that the ballistic limit ve-locities of monolithic plates are higher than those of the double-layered plates, including in-contact and spaced double-layered plates, and also the ballistic limit velocities of in-contact double-layered plates are higher than those of spaced double-layered plates. The effect of the configuration of target on the ballistic resistance decreases with the increase of velocity of projectile. Moreover, numerical simulations of the impacts are conducted by using an explicit finite element code (ABAQUS), and also the results obtained from finite element simulations are compared with those of experiments. Good correlation is found between the two. that the numerical simulation can predict the ballistic limit velocity of target.

Key words： Impact Projectile Double-layered plates Ballistic limit

收稿日期: 2015-04-10 出版日期: 2016-08-25

引用本文:

郝鹏，卿光辉，李建峰，邓云飞，魏刚. 2A12铝合金薄板对卵形头弹抗冲击性能研究[J]. 振动与冲击, 2016, 35(17): 19-25.
Hao Peng, Qing Guangfei, Li Jianfeng, Deng Yunfei, Wei Gang. The ballistic resistance of 2A12 thin plates against ogival-nosed pro-jectiles impact. JOURNAL OF VIBRATION AND SHOCK, 2016, 35(17): 19-25.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2016/V35/I17/19

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