Simultaneous and non-simultaneous multiple detonations
Abstract
Several phenomenological aspects of the airblast problems associated with simultaneous and non-simultaneous multiple detonations have been studied. Using trios of bare explosive spheres arranged in equilateral triangular patterns, it was shown that efficient use of such simultaneously detonated charges requires an optimization of the separation distance between charges and of their height-of-burst to obtain maximum coverage on the ground with a given overpressure. Particular emphasis was placed on developing iso-pressure contours of specific levels within and about the pattern of charges for both ground and air bursts. The results predicted using analytical techniques were compared with actual experimental results. The results of simultaneous detonation experiments were used to verify the Low Altitude Multiburst (LAMB) air blast model for predicting the free-field blast environment from multiple explosions occurring in close time and space proximity. The experiments showed that the overpressure from multiple charge detonations was enhanced at the expense of the dynamic pressure, thus causing damage at greater distances than if the total explosive weight had been detonated as a single charge.
- Publication:
-
Shock Tubes and Waves
- Pub Date:
- 1984
- Bibcode:
- 1984stw..symp..543K
- Keywords:
-
- Air Flow;
- Detonation Waves;
- Explosive Decompression;
- Overpressure;
- Shock Wave Interaction;
- Contours;
- Dynamic Pressure;
- Fireballs;
- Pressure Distribution;
- Wave Reflection;
- Fluid Mechanics and Heat Transfer