Impact, Friction, Shock Sensitivities and DDT Behaviour of Advanced CMDB Propellants
AbstractThis paper reports results of impact, friction and shock sensitivities of CMDB propellants containing AP, RDX, PETN and their combinations. Results of impact and friction sensitivities indicate that CMDB propellants containing AP are highly sensitive and AP-based compositions are more impact and friction sensitive than RDX and PETN-based compositions, qnd that these sensitivities are proportionalto oxygen balance of the composition, which is in agreement withearlier findings. Inclusion of high explosives like RDX and PETN increases the shock sensitivity of CMDB formulations, whereas AP-based compositions are least shock sensitive. There exists are lationship between shock sensitivity and VOD of the individual oxidiser/high energy ingredient incorporated in the formulation. Shockamplitude values of 87 and 46 k bar in CMDB and DBP, as determinedby NOL card gap test, suggest that CMDB propellants are much more shock sensitive than DBP. Composite propellants are insensitive toshock, as they did not undergo detonation even at zero card gap.Results of DDT behaviour of CMDB propellants show that they aremore prone to deflagration to detonation transition under adverse conditions.
Pretty, R.T., Janes Weapon System, (McDonald & Janes Publishers, London) 1979-80.
Flynn, J.P., Lane, G.A. & Polmer, J.J., US Patent No. 3865656, 1975
Elrick, D. E., Slurry Casting Method for Double Base Propellants, US Patent No. 4, 462,848, 1984.
Gould, R.F., Propellant Manufacture Hazards & Testing, (American Chemical Society, Washington, 1969.
Bernecker, R.R., AZAA J., 24 (1986), 82-91.
Price, D. & Rernecker, R.R., DDT Behaviour of Porous Propellant Models and Porous Samples of Commercial Propellants, NSWC TR-80-65, AD 4084906, (Naval Surface Weapon Centre, Maryland), 1980.
Kamlet, M.J., The relationship of impact sensitivity with structure UF organic high explosives, I : ' Polynitro aliphatic explosives, Proceedings of the Sixth Symposium (International) on Detonation, held at California, 1976.
Meyer, R., Explosives, (Verlag Chemie, Weinheim), 1977, p. 54.
Choudhari, M.K., Vaidya, M.V., Deshmukh, M.Y. & Singh, Haridwar. Indiarl J. ~f Tech., 25 (1987), 390-392.
Gautam, G.K., Singh, Haridwar & Rao, K.R.K., Indian. J. of Tech., 25 (1987),75-78.
Varghese, A.O., Manufacture of Dense NC, MSc Thesis, Pune University, 1977
Julius-Peters, K.G., Production Programme of 'Julius-Peters' Company for the Member of MBB Course, 1981.
Cook, M.A., Science of High Explosives, (Reinhold Publishing Corporation), 1963, pp. 14, 48, 129.
Fedoroff, B.T. & Sheffield, O.E., Encyclopedia of ~x~losiv&es R elated Items,1969, D-198.
Price, D. & Jaffe, I., ARS J., 31 (1961), 595-599
Bowden, F.P. & Yoffee, A.D., Initiation and Growth of Explosions in Liquids and Solids, (Cambridge University Press, Cambridge), 1952.
Kamlet, M.J. & Adolph, H.G., Propellants & Explosives, 4 (1979), 30-34.
Urbanski. T., Chemistry & Technology of Explosives, Vol. 11, PWN (PolishScientific Publishers), 1965, p. 483.
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