Experimental determination of the detonation front curvature of non-ideal explosive ANFO

被引：12

作者：

Miyake, A ^{[1
]}

Ohtagaki, Y

Abe, T

Wada, Y

Nakayama, Y

Ogawa, T

机构：

[1] Yokohama Natl Univ, Dept Safety Engn, Hodogaya Ku, Yokohama, Kanagawa 2408501, Japan

[2] Natl Inst Adv Ind Sci & Technol, Explos Safety Res Ctr, Tsukuba, Ibaraki 3058565, Japan

来源：

EXPLOSION, SHOCK WAVE AND HYPERVELOCITY PHENOMENA IN MATERIALS | 2004年 / 465-466卷

关键词：

ANFO; detonation front curvature; non-ideal detonation; plane wave lens;

D O I：

10.4028/www.scientific.net/MSF.465-466.181

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In order to obtain a better understanding of the non-ideal detonation behaviour of ammonium nitrate and fuel oil mixture explosive (ANFO), shock front curvature of stable detonation of ANFO was determined in steel and PMMA tubes. ANFO was initiated by a plane shock wave from a plane wave lens made by two kinds of liquid explosive, and the shock front trace was recorded with the streak camera. Based on the experimental results the radius of the shock front curvature of detonating ANFO with the detonation velocity of 1.7 km/s in a PMMA tube with the diameter of 40 mm was determined as 36 mm. While the radius of the shock front curvature in a steel tube with the diameter of 36 mm was determined as 55 mm with the detonation velocity of 3.1 km/s. The reaction zone length of detonating ANFO was estimated as 6.3 mm in a PMMA tube and 5.4 mm in a steel tube with Wood-Kirkwood equation. It was found that the confinement of ANFO had a strong influence on the detonation velocity and the detonation front curvature.

引用

页码：181 / 184

页数：4

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