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International Journal of Energetic Materials and Chemical Propulsion
ESCI SJR: 0.149 SNIP: 0.16 CiteScore™: 0.29

ISSN Imprimer: 2150-766X
ISSN En ligne: 2150-7678

International Journal of Energetic Materials and Chemical Propulsion

DOI: 10.1615/IntJEnergeticMaterialsChemProp.v8.i5.20
pages 391-410

ASSESSMENT OF MECHANICALLY INDUCED DAMAGE IN SOLID ENERGETIC MATERIALS

Alice I. Atwood
Naval Air Warfare Center Weapons Division, China Lake, CA 93555-6100 USA
K. P. Ford
Naval Air Warfare Center Weapons Division (NAWCWD), China Lake, CA 93555, USA
D. T. Bui
Naval Air Warfare Center Weapons Division, China Lake, CA 93555-6100 USA
P. O. Curran
Naval Air Warfare Center Weapons Division.China Lake, CA 93555-6001
T. M. Lyle
Naval Air Warfare Center Weapons Division (NAWCWD), China Lake, CA 93555, USA

RÉSUMÉ

This paper describes the use of the shotgun/friability test as a means to determine the level of damage induced in a series of energetic materials. Five propellants and three explosives have been evaluated and the contribution of burning rates, loading density, and binder type on pressurization rates and damage levels have been examined. The changes in burn area are best used in the determination of damage, while the use of maximum dp/dt is best for the estimation of reaction violence. Within a family of propellants, the higher the burning rate, the higher the maximum dp/dt. The cast-cured explosive samples demonstrated lower damage levels than the melt-cast explosive sample examined in this report; however, the damaged melt-cast sample was more difficult to ignite in the closed bomb.

RÉFÉRENCES

  1. Gould, R.A., Progress Report of JANNAF Panel on Shotgun/Relative Quickness Testing.

  2. Richter, H.P., Boyer, L.R., Graham, K.J., Lepie, A.H., and Zwierzchowski, N.G., Shock Sensitivity of Damaged Energetic Materials.

  3. Christopher, F.R., Foster, Jr., J.C., Wilson, L.L., and Gilland, H.L., The Use of Impact Techniques to Characterize the High Rate Mechanical Properties of Plastic Bonded Explosives.

  4. Isler, J., Contribution du Mode de Combustion des Explosifs Compacts au Processus de la Transition Combustion-Deflagration-Detonation.

  5. Meuken, D., Scholtes, G., and van Driel, C., Quantification of Thermal and Mechanical Damage in PBXs, Part II.

  6. Butcher, A.G., Keefe, R.L., Robinson, N.J., and Beckstead, M.W., Effects of Igniter and Compaction on DDT Run-Up in Plastic Pipes.

  7. Price, C.F. and Atwood, A.I., CBRED II: A Versatile Tool for the Characterization of Damaged Propellants.

  8. Atwood, A.I., Curran, P.O., Price, C.F., Boggs, T.L., Booth, D., High Pressure Burning Rate Studies of Ammonium Perchlorate (AP)-Based Propellants.


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