Some Properties of High Explosive Mixtures of Low Sensitivity to External Stimuli

• Autorzy: Bąk A. , Maranda A. , Nowaczewski J. , Szerszeń M.
• Języki publikacji: EN

Abstrakty

EN

In this paper, a method of obtaining explosive mixtures of low sensitivity to external stimuli is described. The results of measurements of sensitivity to friction are presented. The decrease of sensitivity was obtained by addition of insensitive explosives like: nitroguanidine (NQ) and 3-nitro-1,2,4-triazol-5-one (NTO). Detonation velocity (VOD) and brisance for the chosen explosive mixtures were measured. VOD was determined by short circuit sensor method, and brisance was determined by the Plate-Denting Test. The velocity measurements of metal plate (thickness 2 mm) throwing by detonation products of explosive mixtures were carried out. VOD of tested mixtures are high (8000-8500 m s-1), and their density are at least 90% of maximal theoretic density, so these compositions can be defined as high explosive mixtures. The brisance of tested mixtures is also high, and considerably exceeds the brisance of TNT, in the case of HMX/NTO (49.5/50) compositions this parameter is higher than brisance of desensitized hexogene. The throwing ability for individual mixtures is high. This parameter exceeded 3500 m s-1 for almost all cases. The comparison of measured and calculated velocity of throwing plates, measured by different methods showed good compatibility.

Słowa kluczowe

EN

insensitive high explosive; detonation velocity; friction sensitivity of explosive; brisance

• Czasopismo: Central European Journal of Energetic Materials
• Rocznik: 2006
• Tom: Vol. 3, nr 3
• Strony: 52--64
• Opis fizyczny: Bibliogr. 12 poz.

Twórcy

autor

Bąk A.

autor

Maranda A.

autor

Nowaczewski J.

autor

Szerszeń M.

• Military University of Technology, 2 Kaliskiego St., 00-908 Warsaw 49,

Bibliografia

• [1] Lamy P., Leiber C., Gumming A., Zimmer M., (Technical Group, ASNR LTTP on IHE), Air Senior National Representative Long Term Technology Project on Insensitive High Explosives, 27th International Annual Conference of ICT, Karlsruhe, Germany, 25-28.06.1996, pp. 1/1-1/13.
• [2] Fouche F. C., van Schalwyk G. C., TNT-Based Insensitive Munitions, ibid., pp. 69/1-69/12.
• [3] Becuwe A., Delclos A., Low-Sensitivity Explosive Compounds for Low Vulnerability Warheads, Propellants, Explos., Pyrotech., 1993, 18, 1-10.
• [4] Engel W., Heinisch H., Process for Preparation of Compact Nitroguanidine, US pat. 4 544 769,1985.
• [5] Thiel K., Heinisch H., Process for the Production of Spherulitic Particles, US pat. 5696407,1997.
• [6] Rothgery E. F., Process for the Production of 1,2,4-triazol-5-one, US pat. 5039816, 1991.
• [7] Polish Standard PN-C-86019:1994, Materiały wybuchowe. Oznaczanie wrażliwości na tarcie.
• [8] Kohler J., Meyer R., Explosives, 4th ed., Weinheim 1993.
• [9] Smith L. C., On Brisance, and Plate-Denting Test for the Estimation of Detonation Pressure, Explosivstoffe, 1967, 5, 106-110, 6, 130-134.
• [10] Trębiński R., Trzciński W., Włodarczyk E., O szacowaniu aktywnej masy ładunku materiału wybuchowego do napędzania płaskiego linera, Rozprawy Inżynierskie, 1987, 35(3), 375-385,
• [11] Babul W., Odkształcanie metali wybuchem, WNT, Warszawa 1980.
• [12] Cudziło S., Maranda A., Nowaczewski J.,Trębiński R., Trzcinski W. A., Wojskowe materiały wybuchowe, Wyd. Wydz. Metalurgii i Inżynierii Materiałowej Politechniki Częstochowskiej, Częstochowa 2000.