Micromechanical modeling for inherent anisotropy in granular materials

C.S. Chang, Zhenyu Yin

Research output: Journal article publicationJournal articleAcademic researchpeer-review

77 Citations (Scopus)


In this paper, a description of inherent anisotropy of soil, based on micromechanics framework, is presented. The problem is formulated by assuming that sliding of two contact particles governed by Coulomb criterion in which the friction angle is a function of the orientation of the interparticle contact. The orientation distribution of these parameters is described by a set of symmetric second-order tensors. The formulation of the problem is illustrated by simulations of Santa Monica Beach Sand under true triaxial tests. In particular, the directional dependence of the strength characteristics is examined for samples with inherent cross anisotropy. The orientations of failure planes between particles are also examined. © 2010 ASCE.
Original languageEnglish
Article number005007QEM
Pages (from-to)830-839
Number of pages10
JournalJournal of Engineering Mechanics
Issue number7
Publication statusPublished - 1 Jul 2010
Externally publishedYes


  • Anisotropy
  • Granular material
  • Micromechanics
  • Sand
  • Stress-strain relationship
  • True triaxial test

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering


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