STRAIN-SOFTENING BEHAVIOR OF GRANULAR SOIL IN STRAIN-PATH TESTING

In this study the strain-softening response of a granular soil was studied by controlling the strain path followed by a sample. The definition of strain softening is examined. It was found that, provided appropriate experimental techniques are adopted, the onset of nonhomogeneous deformation can be delayed until about 20% deviatoric strain develops. Two types of strain softening were observed. Prefailure strain softening occurs prior to reaching the failure state, whereas postfailure strain softening occurs after reaching the failure state. Both types may be identified by a decrease in deviatoric stress upon continuous shearing. The shear strength of a sample was found to be dependent on the post-failure strain history. These and other findings are discussed.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/07339410
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Chu, J
  • LO, S-CR
  • LEE, I K
• Publication Date: 1992-2

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: p. 191-208
• Serial:
  • Journal of Geotechnical Engineering
  • Volume: 118
  • Issue Number: 2
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-9410

Subject/Index Terms

• TRT Terms: Deformation; Failure; Granular soils; Shear strength; Softening point; Soil mechanics; Soils; Strain (Mechanics); Testing
• Uncontrolled Terms: Soil deformation; Strain softening
• Old TRIS Terms: Soil behavior
• Subject Areas: Geotechnology; Highways; I42: Soil Mechanics;

Filing Info

• Accession Number: 00618848
• Record Type: Publication
• Files: TRIS
• Created Date: Jan 31 1992 12:00AM