Study of simple plane wave generator with an air-metal barrier

被引：3

作者：

Xiong, Wei ^{[1
]}

Zhang, Xian-feng ^{[1
]}

Guan, Zhong-wei ^{[2
]}

He, Yong ^{[1
]}

Qiao, Liang ^{[3
]}

Guo, Li-li ^{[3
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch Mech Engn, Nanjing 210094, Jiangsu, Peoples R China

[2] Univ Liverpool, Sch Engn, Brownlow St, Liverpool L69 3GQ, Merseyside, England

[3] Beijing Inst Space Long March Vehicle, Beijing, Peoples R China

来源：

DEFENCE TECHNOLOGY | 2014年 / 10卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Explosion mechanics; Plane wave generator; High speed flyer;

D O I：

10.1016/j.dt.2014.05.012

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Plane wave generators (PWGs) are used to accelerate flyer plates to high velocities with their generated plane waves, which are widely used in the test of dynamic properties of materials. The traditional PWG is composed of two explosives with different detonation velocities. It is difficult to implement the related fabrication processes and control the generated waves due to its complicated structures. A simple plane wave generator is presented in this paper, which is composed of two identical cylindrical high explosive (HE) charges and an air-metal barrier. A theoretical model was established based on two different paths of the propagation of detonation waves, based on which the size of air-metal barrier was calculated for a given charge. The corresponding numerical simulations were also carried out by AUTODYN-2D r based on the calculated results, which were used to compare with the theoretical calculations. A detonation wave with a flatness of 0.039 ms within the range of 70-percent diameter of the main charge was obtained through the simulations. Copyright (C) 2014, China Ordnance Society. Production and hosting by Elsevier B.V. All rights reserved.

引用

页码：190 / 197

页数：8

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