Measuring and numerical simulation of attenuation of planar shock wave in PMMA

被引：0
|
作者：
Zhang S.-W. [1 ]
Long J.-H. [1 ]
Jia H.-Z. [1 ]
Jin S. [1 ]
机构：
[1] Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang, 621999, Sichuan
来源：
Binggong Xuebao | / 7卷 / 1214-1219期
关键词：
Attenuation; Numerical simulation; Ordnance science and technology; PVDF film pressure sensor; Shock wave;
D O I：
10.3969/j.issn.1000-1093.2016.07.008
中图分类号：
学科分类号：
摘要：
The attenuation rule of shock wave in the materials is studied. A polyvinylidene fluoride (PVDF) film pressure sensor is used to obtain the attenuation data of shock wave driven by plane-wave lens-driven explosives in PMMA material. The plane-wave lens-driven explosive with high and low detonation velocities is numerically modeled, and the calculation termination due to the reversal of largely deformed explosive grid overflowing the metal cylinder is dealt with. Comparative analysis of simulated and experimental results shows that the shock wave traveling through 50 mm thick PMMA is attenuated from 7.4 GPa to 4.02 GPa. The research provide the experimental data for the attenuation of shock wave in PMMA, and the matters needing attention to the installation of PVDF film pressure sensor are presented. © 2016, Editorial Board of Acta Armamentarii. All right reserved.
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页码：1214 / 1219
页数：5
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