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https://nap.nationalacademies.org/catalog/27432/critical-issues-in-transportation-for-2024-and-beyond

A CONSTITUTIVE MODEL FOR CYCLIC VISCOPLASTICITY OF SOILS

A constitutive model for soils subjected to monotonic and cyclic loading under general stress conditions is presented which has neither an elastic domain nor a yield condition. Two formulations are built in the model according to the sign (plus or minus) of the linear combination of the first and second invariants of the viscoplastic strain rate tensor. In each formulation, a new stress-ratio parameter is introduced, and the linear combination of these accumulated strain invariants is related to a function of effective stresses and time. Constitutive relations are derived by using the concept of potential theory, with the help of an elasto-viscoplastic model called the sekiguchi-ohta model. The model presented here agrees with the sekiguchi-ohta model in a special case, and with the original cam clay model in a more special case. The model can describe anisotropic responses due to initial stress anisotropy, initial structural anisotropy and loading reversal, rate effect and phase transformation. The results of the simulations for several typical triaxial tests qualitatively indicate the applicability of the model to a wide extent of loading conditions. (TRRL)

  • Availability:
  • Corporate Authors:

    Japanese Society of Soil Mech & Foundation Engrs

    Tokyo,   Japan 
  • Authors:
    • Matsui, M
  • Publication Date: 1988-12

Media Info

  • Features: References;
  • Pagination: p. 19-37
  • Serial:
    • SOILS AND FOUNDATIONS
    • Volume: 28
    • Issue Number: 4
    • Publisher: JAPANESE GEOTECHNICAL SOCIETY
    • ISSN: 0038-0806

Subject/Index Terms

Filing Info

  • Accession Number: 00493174
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: May 31 1990 12:00AM