Accession Number : AD0740146
Title : Dynamic Measurements of Stress Pulses in Tuff at Nevada Test Site.
Descriptive Note : Final rept. Mar-Aug 71,
Corporate Author : STANFORD RESEARCH INST MENLO PARK CALIF
Personal Author(s) : Smith,Carl W.
Report Date : 23 AUG 1971
Pagination or Media Count : 53
Abstract : The measurement of stress pulses from two 1000-lb high explosive shots in tuff at the Nevada Test Site has provided stress-time waveforms for comparison with applicable theory. Ytterbium piezoresistant gages were used to measure radial stress in the range of 1 to 14 kbar. The experiments were located near the HLOS sites of Hudson Moon and Diana Mist. Ytterbium gages show excellent promise as a field device to measure dynamic stress pulses in the range of a fraction to tens of kilobars. The loading history and peak stress are satisfactorily obtained from gage records by using currently available calibration data; however, calibration data for conversion of unloading records are questionable. (Author)
Descriptors : (*ROCK, MECHANICAL PROPERTIES), (*UNDERGROUND EXPLOSIONS, SEISMIC WAVES), (*STRAIN GAGES, PERFORMANCE(ENGINEERING)), PIEZOELECTRIC TRANSDUCERS, YTTERBIUM, NEVADA
Subject Categories : Geology, Geochemistry and Mineralogy
Test Facilities, Equipment and Methods
Distribution Statement : APPROVED FOR PUBLIC RELEASE