ELASTOPLASTIC STRESS-STRAIN THEORY FOR COHESIONLESS SOIL- DISCUSSION

General observations are made about the requirements of models of the stress-strain behavior of cohesionless soil (by the use of both elastic and plastic constitutive relationships), and comments are made about the problem of the determination of the work-hardening law. The use of the continium approach and its inherent problems (inhomogeneous deformation when dense materials are sheared) are discussed, and it is noted that plastic stress-strain relations provide a more convenient means of modeling this behavior than other approaches. The use of stress-strain models to predict the response of a soil deposit to leading requires sophisticated analysis, but the reliability of the conclusiosn drawn from this analysis depends on the adequacy of the input data. Not only must sufficient testing be done to determine a set of material parameters but also sufficient work is needed to provide some idea of the likely variability of the material at a given site. A procedure is outlined for determining the hardening function. In developing a model for overconsolidated materials in general, but particularly with cohesive soils, it has been found possible to determine the hardening fuction by considering the nature of the undrained stress path.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/3519342
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Pender, M J
• Publication Date: 1976-11

Media Info

• Features: References;
• Pagination: p. 1202-04
• Serial:
  • Journal of Geotechnical and Geoenvironmental Engineering
  • Volume: 102
  • Issue Number: GT11
  • Publisher: American Society of Civil Engineers
  • ISSN: 1090-0241
  • Serial URL: http://ojps.aip.org/gto

Subject/Index Terms

• TRT Terms: Deformation; Deformation curve; Elastoplasticity; Forecasting; Granular soils; Mathematical models; Overconsolidation; Soils; Work hardening
• Uncontrolled Terms: Elastic plastic analysis; Models; Soil deformation
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00148208
• Record Type: Publication
• Report/Paper Numbers: ASCE #12536
• Files: TRIS
• Created Date: Mar 15 1977 12:00AM