Accession Number : AD0761640
Title : The Role of Material Properties in Determining Ground Motion from High Energy Detonations.
Descriptive Note : Final rept.,
Corporate Author : TERRA TEK INC SALT LAKE CITY UTAH
Personal Author(s) : Jones,Arfon H. ; Green,Sidney J.
Report Date : APR 1973
Pagination or Media Count : 56
Abstract : Calculated peak stresses from two contained 1000 pound nitromethane explosions in nearly saturated Nevada Test Site (NTS) tuff agreed with measured values to within about 20%, over a pressure range of 20 down to 1 kilobar. Many laboratory tests were conducted on small core samples from each site to provide an adequate material representation. Over the pressure range of interest, down to about 1 kilobar, the shear strength of the tuffs here does not play a strong role in the mechanical response, and hence, the model used needed only fit volume and energy requirements. Measurement of stresses and velocities in the multikilobar pressure range was accomplished with piezoresistive stress gates (ytterbium) and piezoelectric velocity gages (quartz and ceramic). (Modified author abstract)
Descriptors : (*UNDERGROUND EXPLOSIONS, TERRAIN), (*TERRAIN, MOTION), NEVADA, DENSITY, POROSITY, SHOCK WAVES, SHEAR STRESSES, DEFECTS(MATERIALS)
Subject Categories : Geology, Geochemistry and Mineralogy
Distribution Statement : APPROVED FOR PUBLIC RELEASE