TNT Equivalency of M10 Propellant
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION BAY SAINT LOUIS MS NATIONAL SPACE TECHNOLOGY LABS
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Peak, side-on blast overpressure and scaled, positive impulse have been measured for M10 single-perforated propellant, web size 0.018 inches, using configurations that simulate the handling of bulk material during processing and shipment. Quantities of 11.34, 22.7, 45.4, and 65.8 kg were tested in orthorhombic shipping containers and fiberboard boxes. High explosive equivalency values for each test series were obtained as a function of scaled distance by comparison to known pressure, arrival time and impulse characteristics for hemispherical TNT surface bursts. The equivalencies were found to depend significantly on scaled distance, with higher values of 150-100 percent pressure and 350-125 percent positive impulse for the extremes within the range from 1.19 to 3.57 mcube root of kg. Equivalencies as low as 60-140 percent pressure and 30-75 percent positive impulse were obtained in the range of 7.14 to 15.8 mcube root of kg. Within experimental error, both peak pressure and positive impulse scaled as a function of charge weight for all quantities tested in the orthorhombic configuration.
- Ammunition and Explosives