Accession Number : ADA301979

Title :   Calculations to Support the Design of a Seismic Source Test.

Descriptive Note : Technical rept. 1 Sep 93-30 Jun 94,

Corporate Author : SCIENCE APPLICATIONS INTERNATIONAL CORP SAN DIEGO CA

Personal Author(s) : O'Donnell, David M. ; McKay, Michael W.

PDF Url : ADA301979

Report Date : 01 NOV 1995

Pagination or Media Count : 63

Abstract : Two numerical simulations were performed with the 2-D RAGE code to examine potential designs for a proposed seismic source test. The first calculation simulated the original design of the proposed SHIST test which was intended to demonstrate the use of near-source instrumentation developed in the HYDROPLUS program along with near-field seismic instrumentation to evaluate the seismic source function for hard rock. The calculation modeled the explosion of a 20-ton sphere 6f QM-l00R explosive buried at a depth of approximately 40 meters. The second calculation was intended to examine whether the next test in the DISTANT MOUNTAIN test series, DM4, could also be used to satisfy some of the objectives of the SHIST test. For that calculation, the 2Q-ton charge (nitromethane in this case) was placed at the ground surface in a planar array typical of the DISTANT MOUNTAIN test series. An approximate yield equivalency factor for the two charge configurations was developed from the calculations.

Descriptors :   *GROUND SHOCK, *NUCLEAR EXPLOSION TESTING, *SEISMIC WAVES, COMPUTER PROGRAMS, MATHEMATICAL MODELS, COMPUTERIZED SIMULATION, YIELD(NUCLEAR EXPLOSIONS), COMPUTATIONS, COMPUTER AIDED DESIGN, UNDERGROUND EXPLOSIONS, GRANITE, ROCK, NUCLEAR EXPLOSION SIMULATION, GROUND MOTION, BIAXIAL STRESSES, NEAR FIELD, HIGH EXPLOSIVES, EQUATIONS OF STATE, NITROMETHANE, RADIAL STRESS, SEISMOMETERS.

Subject Categories : Seismology
      Nuclear Weapons

Distribution Statement : APPROVED FOR PUBLIC RELEASE