Abstract
This paper presents the results of a study of the initiation of explosive transformation of flat charges 40 mm in diameter and 5 mm thick, made of a low-density (\(\rho\) \(\approx\)0.9 g/cm3) light-sensitive explosive composition based on fine RDX and aluminum. It is shown that laser radiation (LR) can be used to initiate explosive transformation over a large area (\(\approx\)1 000 mm2) with a small time difference in the arrival of the detonation wave front. It is determined that at an LR energy density \(Q_\text{opt}\) = 10 J/cm2) over the entire LR spot on the charge surface, the time difference in the arrival of the detonation wave front at the rear surface of the charge is not more than 50 ns.
Similar content being viewed by others
REFERENCES
A. A. Volkova, A. D. Zinchenko, I. V. Sanin, V. I. Tarzhanov, and B. B. Tokarev, “Time Characteristics of Laser Initiation of PETN," Fiz. Goreniya Vzryva 13 (5), 760–766 (1977) [Combust., Expl., Shock Waves 13 (5), 645–650 (1977); doi.org/10.1007/BF00742225].
Yu. V. Sheikov, S. M. Bat’yanov, O. N. Kalashnikova, O. M. Lukovkin, D. V. Mil’chenko, S. A. Vakhmistrov, and A. L. Mikhailov, “Initiating Aluminized High Explosives by Laser Radiation," Fiz. Goreniya Vzryva 54 (5), 57–60 (2018) [Combust., Expl., Shock Waves 54 (5), 563–569 (2018); doi.org/10.1134/S0010508218050088].
O. M. Lukovkin, Yu. V. Sheikov, S. M. Bat’yanov, S. A. Vakhmistrov, O. N. Kalashnikova, and D. V. Mil’chenko, “Method of Manufacturing Heat-Resistant Light-Sensitive Explosive Compositions and Light Detonators Based on Them," RF Patent No. 2637016 of October 29, 2017.
B. P. Aduev, D. R. Nurmukhametov, and N. V. Nelyubina, “Effect of the Density of PETN–Aluminum Composites on the Threshold of Laser Initiated Explosive Decomposition," Fiz. Goreniya Vzryva55 (6), 93–98(2019) [Combust., Expl., Shock Waves55 (6), 718–722 (2019). doi.org/10.1134/S0010508219060133].
B. P. Aduev, D. R. Nurmukhametov, G. M. Belokurov, A. A. Zvekov, and N. V. Nelyubina, “Laser initiation of PETN with Inclusions of Aluminum Nanoparticles under Static Pressure," Fiz. Goreniya Vzryva 55 (2), 127–134 (2019); [Combust., Expl., Shock Waves 55 (2), 237—243 (2019); doi.org/10.1134/S0010508219020138].
B. P. Aduev, D. R. Nurmukhametov, N. V. Nelyubina, and I. Yu. Liskov, “Initiation Thresholds and Dynamic Characteristics of an Explosion for thin Samples of PETN–Al Composites under Laser Initiation," Zh. Tekh. Fiz. 89 (6), 912–918 (2019) [Tech. Phys. 64, 858–864 (2019); doi.org/10.1134/S1063784219060021].
E. I. Aleksandrov and V. P. Tsipilev, “Effect of the Pulse Length on the Sensitivity of Lead Azide to Laser Radiation," Fiz. Goreniya Vzryva 20 (6), 104–109 (1984) [Combust., Expl., Shock Waves, 20 (6) 690–694 (1984); doi.org/10.1007/BF00757322].
V. N. German, A. K. Fisenko, and N. P. Khokhlov, “Laser Radiation Induced Detonation in HE Samples Produced by Thermovacuum Deposition," in Proc. of the 1998 Life Cycles of Energetic Material Conf., 29 March–1 April 1998, Fullerton, p. 67.
Author information
Authors and Affiliations
Corresponding author
Additional information
Translated from Fizika Goreniya i Vzryva, 2021, Vol. 57, No. 3, pp. 119–127.https://doi.org/10.15372/FGV20210312.
Rights and permissions
About this article
Cite this article
Khokhlov, N.P., Pon’kin, N.A., Luk’yanenko, I.A. et al. Experimental Study of Laser Initiation of a Light-Sensitive Explosive Charge over a ≈1000 mm2Surface. Combust Explos Shock Waves 57, 364–371 (2021). https://doi.org/10.1134/S0010508221030126
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0010508221030126