INCREMENTAL NUMERICAL SOLUTION OF A SIMPLE DEFORMATION PROBLEM IN SOIL MECHANICS

ADVANCES IN THE TECHNIQUES OF LABORATORY TESTING OF SOIL MATERIALS HAVE LED TO THE DEVELOPMENT OF CONSTITUTIVE THEORIES WHICH ARE PERHAPS LACKING IN GENERALITY AND LIABLE TO MODIFICATION AS FURTHER EXPERIMENTAL EVIDENCE COMES TO LIGHT. HOWEVER, IN PRINCIPLE THEY MAKE POSSIBLE THE SOLUTION OF SOME BOUNDARY VALUE PROBLEMS FOR SOILS THROUGHOUT THE RANGE OF DEFORMATIONS UP TO COLLAPSE. CONCURRENTLY COMPUTER- ORIENTATED METHODS OF STRESS ANALYSIS HAVE PROGRESSED TO THE POINT WHERE THE INHERENTLY NON-LINEAR, STATE DEPENDENT BEHAVIOR OF SOIL CONTINUA CAN BE TREATED ON A STEP-BY-STEP BASIS. THESE TWO ADVANCES ARE PRESENTED THE DISPLACEMENT FINITE ELEMENT COMPUTATION METHOD IS USED TO SOLVE THE BOUNDARY VALUE PROBLEM OF PLANE STRAIN EXPANSION OF THICK-WALLED HOLLOW CYLINDERS OF SOIL. DRAINED COHESIONLESS MATERIALS ARE ASSUMED TO DEFORM CONSISTENTLY WITH THE STRESS-DILATANCY FLOW CONCEPT, AND FULLY DRAINED CLAYS CONSISTENTLY WITH THE CAM CLAY FLOW MODEL. THE PREDICTIONS OF THE THEORIES ARE COMPARED WITH EXPERIMENTAL RESULTS, AND IT IS SUGGESTED THAT THE APPROACH SERVES AS A COMPLEMENT TO THE USUAL LIMIT ANALYSIS SOLUTIONS PREVALENT IN SOIL MECHANICS. /RRL(A)/

  • Availability:
  • Supplemental Notes:
    • Vol 20, No 4, PP 357-372, 19 FIG, 2 TAB, 17 REF
  • Authors:
    • Smith, I M
  • Publication Date: 1970-12

Media Info

  • Serial:
    • GEOTECHNIQUE
    • Publisher: Thomas Telford Limited
    • ISSN: 0016-8505

Subject/Index Terms

Filing Info

  • Accession Number: 00235131
  • Record Type: Publication
  • Source Agency: Road Research Laboratory /UK
  • Files: TRIS
  • Created Date: Aug 15 1971 12:00AM