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Evaluation Of Overpressure Wave Transition By Airblast Overpressure And Shock Wave Attenuation Analysis Using A Small Black Powder Charge, William R. Weitzel
Theses and Dissertations--Mining Engineering
Eight flush mount pressure sensors were used in a series of 3 test sequences to measure air overpressure produced by a firecracker. Overpressure was recorded at a range of 1 inch to 21 inches away from detonation, and charge weight was determined to be 0.1mg of black powder. Air overpressure prediction equations were developed from test series then compared to collected data for subsequent tests. Overpressure wave velocity was measured using wave arrival time and distance between sensors. This wave velocity was compared to calculated wave velocity using overpressure and ideal gas law. Overpressure and wave velocity are directly ...