Abstract: Electromagnetic measurements of the particle velocity are performed in a situation when the detonation wave reaches the interface between a powdered high explosive (HE) and a window made of an inert material (Plexiglas). PETN, RDX, and HMX with densities close to the natural bulk density are studied. In order to measure not only the averaged velocity profile, but also possible fluctuations at scales of the order of the HE grain size, small sensors with the working arm length approximately 1 mm are used. In most experiments, profiles with clear chemical spikes are obtained; in some of the measured results, however, the chemical spike cannot be detected on the background of strong signal oscillations, which may be considered as manifestation of the nonclassical mechanism of wave propagation (explosive burning suggested by Apin). Along with our previous study, the present results suggest parallel operation of the shock and convective mechanisms with domination of each mechanism at different segments of the wave front.

Cite: Ershov A.P. , Rubtsov I.A.
Detonation of Low-Density Explosives
Combustion, Explosion, and Shock Waves. 2019. V.55. N1. P.114-120. DOI: 10.1134/S0010508219010131 WOS Scopus РИНЦ OpenAlex

Original: Ершов А.П. , Рубцов И.А.
О детонации низкоплотных взрывчатых веществ
Физика горения и взрыва. 2019. Т.55. №1. С.128-135. DOI: 10.15372/fgv20190113 РИНЦ OpenAlex

Dates:

Submitted:	Oct 28, 2017
Accepted:	Oct 28, 2017
Published print:	Jan 1, 2019
Published online:	Jun 3, 2019

Identifiers:

Web of science:	WOS:000470124300013
Scopus:	2-s2.0-85066632652
Elibrary:	38263919
OpenAlex:	W2948769399

Citing:

DB	Citing
Web of science	4
Scopus	9
OpenAlex	6

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