COUPLING AND STRESS WAVES IN CLOSE PROXIMITY TO SURFACE EXPLOSIONS

IN THIS STUDY, THE DETONATION PRESSURES OF THE EXPLOSIVES AND THE PEAK STRESS IN THE SHOCK WAVES WHICH WERE GENERATED BY THE DETONATION OF TWO DIFFERENT EXPLOSIVES IN A MAGNETITE ROCK WERE MEASURED BY MEANS OF MODIFIED AQUARIUM AND PIN- CONTACT TECHNIQUES. THE MAIN CONCLUSIONS WHICH WERE DEDUCED FROM THE RESULTS OBTAINED ARE' /1/ THE MODIFIED AQUARIUM TECHNIQUE IS A SATISFACTORY METHOD OF OBTAINING THE DETONATION PRESSURE OF AN EXPLOSIVE, /2/ THE ATTENUATION OF THE PEAK STRESS IN SHOCK WAVES GENERATED BY A SURFACE EXPLOSION IN MAGNETITE FOLLOWS AN EXPONENTIAL LAW, OVER A LIMITED RANGE OF STRESS, /3/ A CHANGE IN THE VARIATION OF COMPRESSIBILITY WITH STRESS IN THE MAGNETITE OCCURS AT STRESS OF ABOUT 150 KB, /4/ THE ACOUSTIC, OR ELASTIC, THEORY OF COUPLING SEEMS TO BE ROUGHLY APPLICABLE TO SHOCK TRANSMISSION FROM EXPLOSIVES TO ROCK FOR THE MATERIALS USED IN THESE EXPERIMENTS, AND /5/ WHEN THE IMPOSED PRESSURE ON THE MAGNETITE EXCEEDS 150 KB, A TYPE OF PLASTIC WAVE SEEMS TO BE GENERATED IN THE ROCK. /AUTHOR/

  • Availability:
  • Supplemental Notes:
    • Vol 4, No 2, PP 229-243
  • Authors:
    • Sassa, K
  • Publication Date: 1967-4

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  • Accession Number: 00234107
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 1 1994 12:00AM