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Title: Explosion airblast predictions on a personal computer and application to the Henderson, Nevada, incident. [Air blast or buried]

Abstract

An airblast prediction program for explosions, called BLASTO, has been written for use with IBM-PC (or compatible) computers, to produce overpressure-distance curves for a variety of interactive input conditions. Several common units are allowed for each input, but calculation and output are in SAI metric units. Explosion yield (chemical or nuclear) and ambient atmospheric pressure are used to generate a referenced 'Standard' overpressure-distance curve. Explosives may be point charges at any height, above ground or depth below the earth surface. Buried charges may also be distributed in a sheet, or 'HEST' configuration. If upper air weather data or forecasts are available, they can be used to generate directed (wind effects) sound velocity versus height structures which are interpreted to give attenuated or enhanced overpressure-distance curves. These are calculated for directions around the compass or toward specified targets or communities. Evaluation of the recent accidental explosion at an ammonium perchlorate (A-P) plant in Henderson, Nevada, made use of BLASTO. Damage inspection gave some estimates for incident overpressure at various ranges. These showed considerable scatter, but they generally surrounded an overpressure versus distance curve calculated for 1-kt NE free-air burst. Weather data and directed sound velocity calculations showed that some of themore » closest residential damages were in directions of minimal weather-dependent blast distortion, allowing the conclusion that the largest explosion could be simulated by a 250-ton HE surface burst. Video-camera recordings, newspaper eye-witness accounts, post-accident aerial photographs, seismic recordings, and a report of the A-P storage pattern have been reviewed to show that this largest blast probably occurred in a 1500-ton A-P collection. This leads to 1:6 TNT airblast equivalence for A-P. 15 refs., 9 figs.« less

Authors:
Publication Date:
Research Org.:
Sandia National Labs., Albuquerque, NM (USA)
OSTI Identifier:
6955187
Report Number(s):
SAND-88-0681C; CONF-880891-2
ON: DE88014991
DOE Contract Number:  
AC04-76DP00789
Resource Type:
Conference
Resource Relation:
Conference: 23. DOD explosives safety seminar, Atlanta, GA, USA, 9 Aug 1988; Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE; AMMONIUM PERCHLORATES; EXPLOSIONS; BLAST EFFECTS; B CODES; FORECASTING; CHEMICAL PLANTS; ACCIDENTS; BUILDINGS; CALCULATION METHODS; DAMAGE; NEVADA; NUMERICAL DATA; PERSONAL COMPUTERS; AMMONIUM COMPOUNDS; CHLORINE COMPOUNDS; COMPUTER CODES; COMPUTERS; DATA; DIGITAL COMPUTERS; FEDERAL REGION IX; HALOGEN COMPOUNDS; INDUSTRIAL PLANTS; INFORMATION; NORTH AMERICA; OXYGEN COMPOUNDS; PERCHLORATES; USA; 450100* - Military Technology, Weaponry, & National Defense- Chemical Explosions & Explosives

Citation Formats

Reed, J W. Explosion airblast predictions on a personal computer and application to the Henderson, Nevada, incident. [Air blast or buried]. United States: N. p., 1988. Web.
Reed, J W. Explosion airblast predictions on a personal computer and application to the Henderson, Nevada, incident. [Air blast or buried]. United States.
Reed, J W. Fri . "Explosion airblast predictions on a personal computer and application to the Henderson, Nevada, incident. [Air blast or buried]". United States.
@article{osti_6955187,
title = {Explosion airblast predictions on a personal computer and application to the Henderson, Nevada, incident. [Air blast or buried]},
author = {Reed, J W},
abstractNote = {An airblast prediction program for explosions, called BLASTO, has been written for use with IBM-PC (or compatible) computers, to produce overpressure-distance curves for a variety of interactive input conditions. Several common units are allowed for each input, but calculation and output are in SAI metric units. Explosion yield (chemical or nuclear) and ambient atmospheric pressure are used to generate a referenced 'Standard' overpressure-distance curve. Explosives may be point charges at any height, above ground or depth below the earth surface. Buried charges may also be distributed in a sheet, or 'HEST' configuration. If upper air weather data or forecasts are available, they can be used to generate directed (wind effects) sound velocity versus height structures which are interpreted to give attenuated or enhanced overpressure-distance curves. These are calculated for directions around the compass or toward specified targets or communities. Evaluation of the recent accidental explosion at an ammonium perchlorate (A-P) plant in Henderson, Nevada, made use of BLASTO. Damage inspection gave some estimates for incident overpressure at various ranges. These showed considerable scatter, but they generally surrounded an overpressure versus distance curve calculated for 1-kt NE free-air burst. Weather data and directed sound velocity calculations showed that some of the closest residential damages were in directions of minimal weather-dependent blast distortion, allowing the conclusion that the largest explosion could be simulated by a 250-ton HE surface burst. Video-camera recordings, newspaper eye-witness accounts, post-accident aerial photographs, seismic recordings, and a report of the A-P storage pattern have been reviewed to show that this largest blast probably occurred in a 1500-ton A-P collection. This leads to 1:6 TNT airblast equivalence for A-P. 15 refs., 9 figs.},
doi = {},
url = {https://www.osti.gov/biblio/6955187}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {1}
}

Conference:
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