FRACTURE AND FLOW OF ROCKS UNDER HIGH TRIAXIAL COMPRESSION

A NEW TRIAXIAL COMPRESSION TECHNIQUE HAS MADE POSSIBLE THE STUDY ON GENERAL LAWS OF FRACTURE AND FLOW OF ROCKS UNDER GENERAL TRIAXIAL STRESS STATES, IN WHICH ALL THREE PRINCIPAL STRESSES ARE DIFFERENT. IN THIS PAPER, THE EFFECTS OF THE STRESS STATES ON FRACTURE AND YIELDING OF ROCKS ARE EXPERIMENTALLY STUDIED BY THIS METHOD. THE EXPERIMENTAL PROCEDURE IS DESCRIBED, AND THE EQUATIONS FOR STRESS STATES PRODUCING FRACTURE AND YIELDING ARE GIVEN AS MONOTONIC INCREASING FUNCTIONS OF THE THREE PRINCIPAL STRESSES. THE NEW FAILURE CRITERIA CORRESPONDING TO THE GENERALIZED VON MISES CRITERIA ARE INTERPRETED. THE DUCTILITY DEFINED AS THE PERMANENT STRAIN JUST BEFORE FRACTURE IS DETERMINED BY SUBTRACTING THE ELASTIC AXIAL STRAIN FROM THE TOTAL AXIAL STRAIN. FROM THE RESULTS ON THE EFFECT OF STRESS STATES, FRACTURE AND FLOW PROPERTIES OF THE EARTH'S UPPER MANTLE ARE DEDUCED. /AUTHOR/

  • Supplemental Notes:
    • Vol 76, No 5, PP 1255-1269, 13 FIG, 23 REF
  • Authors:
    • Mogi, K
  • Publication Date: 1971-2-10

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Filing Info

  • Accession Number: 00235879
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 18 1971 12:00AM