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effects of atom bomb
Fetched: September 30th, 2008, 9:55pm CEST

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Author: ASHLEE JAMES
Forum: General Discussions
Date: 2008-09-30

Detonation causes destruction,injury and/or death within the blast radius through three distinct yet inter-related phenomena: shock wave (a.k.a. detonation wave, pressure wave or overpressure), thermal wave and fragmentation.A shock wave is produced when an explosive event suddenly displaces a volume of air spherically outward from the point of detonation. At its initial creation this phenomena might best be visualized as a round, thick "shell" of highly compressed air enclosing a vacuum. This shell of pressurized air will expand outward at a speed most accurately defined as a Chapman-Jouguet condition, but in layman's terms at typically several to many times the speed of sound.Even brief exposure to overpressure conditions can cause severe damage, crush injury and death. 1psi overpressure can shatter windows, 5psi can rupture eardrums and shatter a 12-inch concrete wall and 15psi can induce severe lung damage.
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ASHLEE JAMES


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