Breakup of copper shaped-charge jets: Experiment, numerical simulations, and analytical modeling

被引：33
|
作者：
Petit, J
Jeanclaude, V
Fressengeas, C
机构：
[1] Ctr Etudes Gramat, DGA, F-46500 Gramat, France
[2] Univ Metz, Mecan & Phys Mat Lab, F-57045 Metz, France
[3] CNRS, F-57045 Metz, France
来源：
JOURNAL OF APPLIED PHYSICS | 2005年 / 98卷 / 12期
关键词：
D O I：
10.1063/1.2141647
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Experimental data on the fragmentation of copper shaped-charge jets are presented and the techniques used for data processing are described. A combined numerical/analytical analysis is designed to describe shaped-charge jet breakup. The method overcomes drawbacks from exclusively numerical or analytical analyses, such as mesh sensitivity or oversimplified description. It yields predictions for break-up time, total number, and cumulative length of fragments in fairly good agreement with the experimental data. The dependence of fragmentation characteristics on the grain size in the liner is also well predicted. (c) 2005 American Institute of Physics.
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页数：10
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