Improved Yield Determination and Event Identification Research

Abstract

Teleseismic ground motion predictions for the recent Pahute Mesa explosion, MAST, were quite successful in terms of both amplitude and waveform matching. The predicted short-period body wave amplitudes were within 30 to 50 percent of the observed amplitudes at most of the SDCS stations. In addition, the general character of the first few seconds of the P-wave trains at the various SDCS stations were matched in reasonable detail. A tension failure model that describes the development of a region of enhanced tension failure (cracking) produced during stress release behind the interacting shock fronts from closely spaced explosions was developed. Calculations for a multiple explosion scenario (three closely spaced explosions detonated simultaneously) were carried out into the elastic region using the two-dimensional CRAM code with the new material failure model included.

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Document Details

Document Type
Technical Report
Publication Date
Nov 17, 1975
Accession Number
ADA022210

Entities

People

  • J. M. Savino
  • J. T. Cherry
  • T. C. Bache
  • T. G. Barker
  • W. O. Wray

Organizations

  • Utility Systems Science and Software (United States)

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Computational Science
  • Contracts
  • Coordinate Systems
  • Couplings
  • Detonations
  • Earth Models
  • Elastic Waves
  • Explosions
  • Explosives
  • Materials
  • Rayleigh Waves
  • Stress Waves
  • Stresses
  • Surface Waves
  • Two Dimensional
  • Underground Explosions
  • Waveforms

Readers

  • Materials Science (Mechanical Engineering).
  • Seismology

Technology Areas

  • Space