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Radial Blast Prediction for High Explosive Cylinders initiated at Both Ends
Authors: Cardoso Anastácio Aline | Knock Clare
Year: 2016
Type of publication: článek v odborném periodiku
Name of source: Propellants Explosives Pyrotechnics
Publisher name: Wiley-VCH
Place: Weinheim
Page from-to: 682-687
Titles:
Language Name Abstract Keywords
cze Radial Blast Prediction for High Explosive Cylinders initiated at Both Ends This paper presents experimental results for the double ended initiation of cylindrical, explosive charges. Bare cylindrical charges of PE4 (RDX/binder 88/12%) were used with length to diameter ratios of 1/3.7 to 5.75/1 and masses of 0.25 to 0.45kg. Pressure measurements were taken at distances of 1 to 3.5m in the radial direction. It was found that it was possible to predict the peak overpressure in the radial direction using P=K M(L/D)R-1/3(-3). M is the mass of explosive, L the length of the explosive charge, D the diameter of the explosive charge, and R the distance from the charge. For PE4, K=2251kPam(3)kg(-1) for all length to diameter ratios. The double ended initiation gives a peak overpressure 1.6 times that for single ended initiation. The impulse for double ended initiation was found to be the same as for single ended initiated charges.
eng Radial Blast Prediction for High Explosive Cylinders initiated at Both Ends This paper presents experimental results for the double ended initiation of cylindrical, explosive charges. Bare cylindrical charges of PE4 (RDX/binder 88/12%) were used with length to diameter ratios of 1/3.7 to 5.75/1 and masses of 0.25 to 0.45kg. Pressure measurements were taken at distances of 1 to 3.5m in the radial direction. It was found that it was possible to predict the peak overpressure in the radial direction using P=K M(L/D)R-1/3(-3). M is the mass of explosive, L the length of the explosive charge, D the diameter of the explosive charge, and R the distance from the charge. For PE4, K=2251kPam(3)kg(-1) for all length to diameter ratios. The double ended initiation gives a peak overpressure 1.6 times that for single ended initiation. The impulse for double ended initiation was found to be the same as for single ended initiated charges. Cylindrical charges; Peak overpressure; Blast prediction; Impulse; Double ended initiation