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detonating fuse, which meet at a specific point away from the centre of the fuse. Knowing the distance along the detonation charge between the two ends of the fuse, the position of the collision of the detonation fronts, and the detonation velocity of the detonating fuse, the detonation velocity of the explosive is calculated and is expressed in km/s.
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of a known detonation velocity, inserted radially at two points into the explosive charge at a known distance apart. When the explosive charge is detonated, it triggers one end of the fuse, then the second end. This causes two detonation fronts travelling in opposite direction along the length of the
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is significantly intensified. This results in an explosive velocity that is higher than if the explosive had been detonated in open air. Unconfined velocities are often approximately 70 to 80 percent of confined velocities.
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Explosive velocity is increased with smaller particle size (i.e., increased spatial density), increased charge diameter, and increased confinement (i.e., higher pressure).
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Detonation velocity can be measured by the
Dautriche method. In essence, this method relies on the time lag between the initiation of two ends of a
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In other words "VOD is the velocity or rate of propagation of chemical decomposition/reaction." And for high explosives, it is generally above 1000
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Proceedings of the Royal
Society of London. Series A, Containing Papers of a Mathematical and Physical Character
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or detonate based on confinement; detonation velocities are generally around 1700 m/s but can be as high as 3000
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318:"Further experiments on explosions in gaseous mixtures of acetylene, of hydrogen and of pentane"
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In the cases where a material has not received dedicated testing, rough predictions based upon
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224:. Warsaw University of Technology, Institute of Heat Engineering
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If the explosive is confined before detonation, such as in an
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56:. Explosive velocities are always higher than the local
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produced is focused on a much smaller area, and the
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110:ranging beyond 4000 m/s to 10300 m/s.
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288:"Review of Vapour Cloud Explosion Incidents"
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316:Egerton, Alfred C.; Gates, S.F. (1927).
146:Table of explosive detonation velocities
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268:. California Institute of Technology
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328:(775). The Royal Society: 516–529.
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106:m/s. Solid explosives often have
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39:velocity of detonation
108:detonation velocities
84:detonation velocities
266:shepherd.caltech.edu
334:1927RSPSA.116..516E
130:gas behavior theory
35:detonation velocity
31:Explosive velocity
18:Explosive velocity
218:"Dust Explosions"
216:Wolanski, Piotr.
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299:. Retrieved
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250:. ChemWiki.
248:ch.ic.ac.uk
176:Flame speed
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297:. HSE 2017
295:hse.gov.uk
187:References
161:Detonation
100:deflagrate
47:shock wave
272:7 October
166:Explosion
156:Burn rate
54:explosive
51:detonated
357:Category
151:Brisance
140:See also
82:Typical
73:pressure
43:velocity
330:Bibcode
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