Effects of Al/O on pressure properties of confined explosion from aluminized explosives

Xiao-yu DUAN; Xue-yong GUO; Qing-jie JIAO; Jing-yuan ZHANG; Qing-ming ZHANG

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Effects of Al/O on pressure properties of confined explosion from aluminized explosives

机译：Al / O对含铝炸药密闭爆炸压力特性的影响

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Pressure histories were tested in a 500-L chamber to identify the pressure load in confined explosion from aluminized explosives. Different aluminized explosives with Al/O, ranging from 0.25 to 1.23, were used. The recorded pressure curves could express the reflection of initial shock wave and the after burning combustion of aluminum. As there is no objective way to gain quasi-static pressure (PQS), method of multipoint averaging was used in smoothing the original pressure curves to gain the PQS. The PQS, rising time of pressure (tQS) which stands for the duration of the initial reflected shock wave, and attenuation coefficient (ω) which stands for the supportive effects of the combustion of aluminum to the PQS are used to characterize the pressure load in the confined explosion from aluminized explosives. The research results showed that the Al/O significantly affected the three characteristic quantities. With the increase of Al/O, the PQS increased at first and decreased later, gaining maximum at Al/O=0.99;the tQS sustained growth and theωdecreased at first and increased later, gaining minimum at Al/O=0.99.

机译：压力历史在500升室中进行测试，以识别来自铝化炸药的狭窄爆炸中的压力负荷。使用不同的铝化炸药，从0.25到1.23的范围内使用。记录的压力曲线可以表达初始冲击波的反射和铝的燃烧后的燃烧后。由于没有客观的方式来获得准静压（PQS），因此使用多点平均方法，用于平滑原始压力曲线以增益PQ。 PQS，压力上升时间（TQS）代表初始反射冲击波的持续时间和代表铝燃烧到PQ的燃烧效果的衰减系数（ω）用于表征压力负荷铝化炸药的狭窄爆炸。研究结果表明，AL / O显着影响了三种特征量。随着Al / O的增加，PQs起初增加并后期减少，在Al / O = 0.99上获得最大值; TQs起初持续增长并达到ωdecrop，以后增加，以al / o = 0.99增加。

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《兵工学报（英文版）》 |2017年第6期|428-433|共6页
作者
Xiao-yu DUAN; Xue-yong GUO; Qing-jie JIAO; Jing-yuan ZHANG; Qing-ming ZHANG;
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作者单位

Beijing Institute of Technology,Beijing,China;

Beijing Institute of Technology,Beijing,China;

Beijing Institute of Technology,Beijing,China;

Beijing Institute of Technology,Beijing,China;

Beijing Institute of Technology,Beijing,China;

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收录信息中国科学引文数据库(CSCD);中国科技论文与引文数据库(CSTPCD);
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入库时间 2022-08-19 03:35:06

Effects of Al/O on pressure properties of confined explosion from aluminized explosives

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