本文關(guān)鍵詞： 兵器科學(xué)與技術(shù) 聚偏氟乙烯薄膜壓力傳感器 沖擊波衰減 數(shù)值模擬　出處：《兵工學(xué)報》2016年07期 　論文類型：期刊論文

【摘要】：針對沖擊波在材料中的衰減規(guī)律研究,利用平面波透鏡驅(qū)動炸藥加載,采用聚偏氟乙烯(PVDF)薄膜壓力傳感器獲得了沖擊波在有機玻璃中的沖擊壓力數(shù)據(jù)。通過對平面波透鏡高低爆速炸藥的合理建模,以及對大變形炸藥網(wǎng)格溢出柱殼翻轉(zhuǎn)造成計算終止現(xiàn)象進(jìn)行了簡化處理,對該實驗進(jìn)行了數(shù)值模擬。數(shù)值模擬計算和實驗結(jié)果對比分析表明,經(jīng)過50 mm厚的有機玻璃后,沖擊波從7.4 GPa衰減到4.02 GPa,衰減了45.7%.研究結(jié)果為沖擊波在有機玻璃內(nèi)的衰減提供了實驗數(shù)據(jù);同時給出了PVDF薄膜壓力傳感器安裝過程中的注意事項。
[Abstract]:In order to study the attenuation law of shock wave in material, the plane wave lens is used to drive the explosive to load. The shock pressure data of shock wave in plexiglass were obtained by using PVDF film pressure sensor. The reasonable model of high and low detonation velocity explosive with plane wave lens was established. The computational termination caused by overflowing cylindrical shell of large deformed explosive is simplified, and the numerical simulation of the experiment is carried out. The comparison between the numerical simulation and the experimental results shows that after 50 mm thick plexiglass, The shock wave attenuates from 7.4 GPa to 4.02 GPA, which attenuates 45.7. The results provide experimental data for the attenuation of shock wave in plexiglass, and points for attention during the installation of PVDF thin film pressure sensor.
【作者單位】： 中國工程物理研究院流體物理研究所;
【分類號】：O382

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