This article is cited in 5 papers

Shock wave distribution in an explosion of an explosive material with plastic filler

S. I. Gerasimov^abcd, A. L. Mikhailov^abc, N. A. Trepalov<sup>ab

a</sup> Institute of Experimental Physics (VNIIEF), Russian Federal Nuclear Center, Sarov, 607190, Russia
^b Sarov State Institute of Physics and Technology, Branch of MEPhI National Research Nuclear University, Sarov, 607186, Russia
^c MEPhI National Research Nuclear University (Moscow Engineering Physics Institute), Moscow, 115409, Russia
^d Nizhny Novgorod State Technical University

Abstract: This paper describes the measurement results for the shock wave propagation during an explosion of an explosive material with plastic filler. The detection was carried out with the help of high-speed analog and digital video cameras. The air shock wave was visualized by means of shadow photography in transmitted light in the region of separation from expanding explosion products and using a background oriented Schlieren method in the far region. The optical measurements of the air shock wave propagation were used to estimate a maximum pressure in the compression zone at different sections and compared with the data obtained by the pressure gauges. The calculated pressure peaks were in good agreement with the measured ones. The background oriented Schlieren method proved to be a useful tool easily introduced in usual large-scale polygon experiments.

Keywords: high-speed video detection, background oriented Schlieren method, explosive test.

UDC: 538.521

Received: 12.01.2017
Revised: 15.03.2017

DOI: 10.15372/FGV20170609

 English version: Combustion, Explosion and Shock Waves, 2017, 53:6, 689–695

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