AIR BLAST PHENOMENA IN AN ARCTIC CLIMATE
Army Research Office, Office of the Chief, Research and Development, Washington, D. C. AIR BLAST PHENOMENA IN ARC IC CLIMATE, by L. F. Ingram. 1962, 9p. incl. illus. U classified rep rt Paper presented at the 1962 Army Science Conference, 20-22 June 1962, at the United States Military Academy, West...
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| Format: | Text |
| Language: | English |
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1962
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| Online Access: | http://www.dtic.mil/docs/citations/AD0286639 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0286639 |
| Summary: | Army Research Office, Office of the Chief, Research and Development, Washington, D. C. AIR BLAST PHENOMENA IN ARC IC CLIMATE, by L. F. Ingram. 1962, 9p. incl. illus. U classified rep rt Paper presented at the 1962 Army Science Conference, 20-22 June 1962, at the United States Military Academy, West Point, New York. DESCRIPTORS: *TNT, *Explosions, *Blast, Explosives, Shock waves, Pressure, Snow, Time, Measurement, Energy, Absorption, Reflection, Greenland, De onation, Arctic regions. In 1960, 4- and 32-lb TNT spheres were fired at scaled burst heights over natural and processed snow on the Greenland Ice Cap Camp Fistclench where the snow cover is 100 ft deep. Air-blast pressure-time easurements were made at the surface to obtain height-of-burst infor ation and at several elevations above the surface to determine Mach-triple-point loci. Surface pressure measurements were made at reduced horizontal distances. Pressure da a were obtained for the range 2- to 100-psi peak overpressure. Results show t t: (a) considerable energy is absorbed by snow; (b) snow cannot be regarded as an id al r flecting medium; and (c) the Mach stem formation over snow is not essentially different from t at over a rigid boundary. (Author) |
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