INFLUENCE OF CONSITUTIVE MODELS ON GROUND MOTION PREDICTIONS

IN RECENT YEARS, THE DEVELOPMENT OF MATHEMATICAL MODELS FOR THE STUDY OF GROUND SHOCK EFFECTS IN SOIL, OR ROCK MEDIA, OR BOTH, HAS MADE IMPORTANT PROGRESS. THREE BASIC TYPES OF ADVANCED MODELS HAVE BEEN STUDIED: (1) ELASTIC-IDEALLY PLASTIC MODELS; (2) VARIABLE MODULI MODELS; AND (3) ELASTIC-NONIDEALLY PLASTIC CAPPED MODELS. THE GROUND SHOCK RESPONSE IN THE SUPERSEISMIC RANGE OF A 1-MT AIR BURST ON A HOMOGENEOUS HALF-SPACE OF A SOIL IS CONSIDERED. EACH OF THE THREE TYPES OF MODELS WAS FITTED TO LABORATORY TEST DATA AND CALCULATIONS WERE MADE FOR EACH CASE. THE RESULTS FROM ALL THREE MODELS ARE COMPARABLE ONLY WHEN THE STRESS PATHS IN UNIAXIAL STRAIN ARE CAPABLE FOR COMPLETE LOAD-UNLOAD CYCLES. OTHERWISE, MAJOR DIFFERENCES OCCUR IN THE LATERAL MOTIONS AND STRESSES. CONSEQUENTLY, MATERIAL PROPERTY LABORATORY DATA NOW INCLUDE THE STRESS PATH WHENEVER POSSIBLE FOR MODELING PURPOSES. /ASCE/

  • Availability:
  • Supplemental Notes:
    • PROC PAPER 10210 2 APP
  • Authors:
    • Baron, M L
    • Nelson, I
    • Sandler, I
  • Publication Date: 1973-12

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Filing Info

  • Accession Number: 00236789
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 3 1974 12:00AM