首页 | 本学科首页   官方微博 | 高级检索  
     

卵形头部刚性弹侵彻厚靶的半解析模型
引用本文:王政倪, 玉山, 曹菊珍, 王元书, 张文. 卵形头部刚性弹侵彻厚靶的半解析模型[J]. 爆炸与冲击, 2004, 24(3): 212-218.
作者姓名:王政  倪玉山  曹菊珍  王元书  张文
作者单位:复旦大学力学与工程科学系,上海,200433;北京应用物理与计算数学研究所,北京,100088;复旦大学力学与工程科学系,上海,200433;北京应用物理与计算数学研究所,北京,100088
基金项目:国家自然科学基金 , 中国工程物理研究院项目
摘    要:基于确定靶体中速度势和速度场的方法分析刚性卵形头部弹体对有限厚靶的侵彻问题。推导了靶体中速度场与应力场的计算方法,利用据此编制的计算程序,计算了卵形头部钢弹体对铝靶的侵彻与穿透问题,给出了侵彻深度与剩余速度同初始碰撞速度的关系。结果表明,在对实验参数不经过任何调整的情况下,得到了同试验曲线相吻合的结果。可以看出该方法的有效性。

关 键 词:爆炸力学  侵彻  速度场  穿透  速度势
文章编号:1001-1455(2004)03-0212-07
修稿时间:2003-06-18

A semi-theoretical model of ogival nose rigid projectiles penetrating into thick targets
WANG Zheng. A semi-theoretical model of ogival nose rigid projectiles penetrating into thick targets[J]. Explosion and Shock Waves, 2004, 24(3): 212-218
Authors:WANG Zheng
Affiliation:WANG Zheng~
Abstract:The problem of an ogival nose rigid projectile penetrating into a thick target has been considered in this paper based on a semi-theoretical model in order to determine the velocity potential and the velocity field in the target. The nose shape is simplified as a semi-Rankine ovoid similar to that of real long rod projectiles, and the details in nose shape does not significantly influence the penetration depth and the residual velocity in the case of thick targets. A code was compiled based on the analysis of velocity and stress fields in targets, and used to calculate penetration and perforation of an ogival nose steel projectile into thick aluminum targets. A good agreement in residual velocity and penetration depth between the calculation and the experiments is achieved without any adjustment in material property parameters.
Keywords:mechanics of explosion  penetration  velocity field  perforation  velocity potential
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《爆炸与冲击》浏览原始摘要信息
点击此处可从《爆炸与冲击》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号