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A Constitutive Model Combining the Microscopic and Macroscopic Behaviour of Sands in Shear and Volumetric Deformation

  • B. Baharom
  • S. E. Stallebrass
Part of the International Centre for Mechanical Sciences book series (CISM, volume 397)

Abstract

The paper describes how dissipation functions and yield surfaces derived by considering the microscopic mechanisms of particle deformation and particle rearrangement of sands (Chandler, 1985) can be combined with the volumetric constraints of the framework of Critical State Soil Mechanics (Schofield and Wroth, 1968) to give a model that provides a consistent link between the features of the shear deformation of sands at large strain and the volumetric state of the sand. The difficulties of relating microscopic parameters used to formulate yield surfaces and flow rules to conventional macroscopic critical state parameters are discussed. The potential of the approach is demonstrated by comparison with laboratory test results.

Keywords

Constitutive Model Yield Surface Flow Rule State Boundary Surface Particle Breakage 
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Copyright information

© Springer-Verlag Wien 1998

Authors and Affiliations

  • B. Baharom
    • 1
  • S. E. Stallebrass
    • 1
  1. 1.City UniversityLondonUK

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