首页 | 本学科首页   官方微博 | 高级检索  
     

高速钨杆弹对脆性靶体的侵彻分析
引用本文:王延斌,李九红,魏雪英,俞茂宏. 高速钨杆弹对脆性靶体的侵彻分析[J]. 高压物理学报, 2005, 19(3): 257-263
作者姓名:王延斌  李九红  魏雪英  俞茂宏
作者单位:西安交通大学建筑与力学学院,陕西,西安,710049;西北电力试验研究院,陕西,西安,710054;西安理工大学土木工程系,陕西,西安,710048;长安大学建筑工程学院,陕西,西安,710054;西安交通大学建筑与力学学院,陕西,西安,710049
摘    要: 考虑脆性材料在高速弹体的侵彻下会发生破碎这一特性,将靶体材料划分为弹性-裂纹-破碎三个响应区,利用静态空腔膨胀理论求出了空腔膨胀压力,即修正的流体动力学模型(A-T模型)中的靶体阻力Rt。分析了压剪系数对靶体阻力和靶体应力场的影响。利用A-T模型求出了钨杆弹以1.5~4.5 km/s的速度撞击靶体时的侵彻深度,并与实验结果及其他研究者的结果进行了比较。

关 键 词:脆性材料  侵彻  柱形空腔膨胀理论  靶体阻力
文章编号:1000-5773(2005)03-0257-07
收稿时间:2004-06-10
修稿时间:2005-01-11

Analysis of High-Velocity Tungsten Rod on Penetrating Brittle Target
WANG Yan-Bin,LI Jiu-hong,WEI Xue-ying,YU Mao-hong. Analysis of High-Velocity Tungsten Rod on Penetrating Brittle Target[J]. Chinese Journal of High Pressure Physics, 2005, 19(3): 257-263
Authors:WANG Yan-Bin  LI Jiu-hong  WEI Xue-ying  YU Mao-hong
Affiliation:1. School of Civil Engineering and Mechanics, Xi'an Jiaotong University,Xi'an 710049, China;2. Northwest China Electric Power Test &; Research Institute, Xi'an 710054, China;3. Department of Civil Engineering, Xi'an University of Technology, Xi'an 710048, China;4. School of Civil Engineering, Chang'an University, Xi'an 710054, China
Abstract:Brittle materials can be pulverized near the tip of the penetrator under high-velocity impact. This paper considers the pulverization of brittle materials and divides the target into the pulverized, cracked and elastic regions, and derived the cavity expansion pressure, viz. target resistance Rt of A-T model (modified hydrodynamic model) based on static cylindrical cavity expansion theory. The influences of the pressure-shear coefficient on Rt and stress fields are discussed. The depth of penetration is calculated using A-T model for a tungsten long rod impacting brittle target at 1.5~4.5 km/s. The calculated results of this model are compared with the experimental data and the results of other models.
Keywords:brittle materials    penetration    cylindrical cavity expansion theory   target resistance
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《高压物理学报》浏览原始摘要信息
点击此处可从《高压物理学报》下载免费的PDF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