We have experimentally investigated the influence of fluoroplastic, copper, and silicon carbide inert inserts on the process of detonation transmission through water. Active and passive HE charges were molded from high explosive (HE) Comp. B. The diameter and height of HE cartridges were 40 and 40 mm, respectively. On the rear end of the passive HE charge a steel witness plate was mounted, which detected presence or absence of detonation. Inert inserts were shaped as 20 mm × 20 mm square prisms of varying lengths, and were contained between active and passive HE charges without any clearance on the way of initiating shock wave with partial overlap of HE cross sections. We demonstrate that preloading a passive HE charge with a shock wave transmitted through a copper or a ceramic insert causes considerable desensitization of the Comp. B. Other conditions being the same, the crash distance of detonation transmission for copper was equal to 74%, and for silicon carbide – to 60% of the distance for fluoroplastic. This desensitization phenomenon may be used for development of protective shells for HE. While performing experiments with 20 mm ceramic inserts we have observed unknown cumulation phenomenon, which manifested itself as a hole in identification steel specimen with depth of about 10 mm.

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References

V. A. Ogorodnikovet al., Quazystatic and shock wave behavior of perspective absorbers of mechanical and thermic power loadings, Proceedings of the International Conference "V-th Chariton Topical Scientific Readings" (2003) pp. 50–54. Google Scholar
E. E. Meshkov, About mechanisms of reduction of explosion loading in the closed volume by means of layers of a granular media, Proceedings of the International Conference "VII-th Chariton Topical Scientific Readings (2006) pp. 793–796. Google Scholar
O. A. Burtzeva, A. O. Drennov and O. B. Drennov, The advanced container for prevention of emergency situations, Abstracts of the International Conference "IX-th Chariton Topical Scientific Readings" (2007) p. 343. Google Scholar
Balagansky I.A., Zorin S.V., Kaplouchov V.M., "Container for Storage and Transportation of Explosives", Russian Patent No. 2094751 (priority of January 11, 1995, publ. 1997) . Google Scholar
A. W. Campbellet al., Physics of Fluids 4(4), 511 (1961), DOI: 10.1063/1.1706354. Crossref, Web of Science, ADS, Google Scholar
R. E. Setchell, Combustion and Flame 43, 255 (1981), DOI: 10.1016/0010-2180(81)90025-0. Crossref, Web of Science, ADS, Google Scholar
J. W. S. Rayleigh , The Theory of Sound ( Moscow, Gostechizdat , 1955 ) . Google Scholar
A. E. H. Love , A Treatise on the Mathematical Theory of Elasticity ( Dover Publications , New York , 1944 ) . Google Scholar
N. S. Brar and S. J. Bless, Shock Wave and High-Strain-Rate Phenomena in Materials (1992) pp. 1041–1049. Google Scholar
Yu. N. Rabotnov , The Mechanics of Deformation of The Solid Bodies ( Moscow, Nauka , 1979 ) . Google Scholar
G. I. Kanel and A. M. Molodetz, Journal of Technical Physics 56(2), 398 (1976). Google Scholar
D. E. Grady, Journal de Physique IV 4(C8), 385 (1994). Google Scholar
I. A. Balagansky and E. F. Gryaznov, Desensitization of RDX-Charges after Preshocking by Compression Wave in SiC-Ceramic Rod, Proceedings of International Conference on Combustion2 (1994) pp. 476–478. Google Scholar
I. A. Balaganskyet al., Evolution of Shock Waves in Silicon Carbide Rods, Proceedings of the 14th APS Topical Conference on Shock Compression of Condensed Matter (2006) pp. 835–838. Google Scholar
Balagansky I.A., Matrosov A.D., Stadnichenko I.A., et al. "Influence of Inert Copper and Silicon Carbide Inserts on Process of Detonation Transmission through Water": Submitted to Mater. Sci. Forum (2007) . Google Scholar