CYCLIC BEHAVIOR AND LIQUEFACTION OF SAND USING DISTURBED STATE CONCEPT

A general constitutive modeling concept called the disturbed state concept (DSC) is developed in this research for the stress-strain and liquefaction behavior of saturated sands. The DSC model is a unified approach and allows hierarchical modeling for options like elastic and elastoplastic responses, microcracking, damage, and softening. The DSC model parameters for saturated Ottawa sand are evaluated using data from multiaxial tests. The model predictions are found to provide satisfactory correlations with the test results. The DSC model with the foregoing parameters is implemented in a nonlinear dynamic finite-element program: DSC-DYN2D. It is used to solve a typical boundary value problem--a shake table test--involving liquefaction behavior. Based on the results, it can be stated that the DSC model is capable of both characterizing the cyclic behavior of saturated sands and identification of liquefaction.

  • Availability:
  • Supplemental Notes:
    • Part of the research results was supported by Grant Nos. CMS 9115316, CES 8711764, and CMS 9732811 from the National Science Foundation, Washington, D.C.
  • Corporate Authors:

    American Society of Civil Engineers

    1801 Alexander Bell Drive
    Reston, VA  United States  20191-4400
  • Authors:
    • Park, I-J
    • Desai, C S
  • Publication Date: 2000-9

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00798454
  • Record Type: Publication
  • Contract Numbers: CRC96/99.EG04, CMS 9115316, CES 8711764
  • Files: TRIS
  • Created Date: Sep 18 2000 12:00AM