Stress-dilatancy behavior for sand under loading and unloading conditions

Zhenyu Yin, C.S. Chang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

116 Citations (Scopus)


Experimental results have shown very different stress-dilatancy behavior for sand under loading and unloading conditions. Experimental results have also shown significant effects of inherent anisotropy. In this article, a micromechanics-based method is presented, by which the stress-dilatancy relation is obtained through the consideration of slips at the interparticle contacts in all orientations. The method also accounts for the effect of inherent anisotropy in sand. Experimental results on Toyoura sand and Hostun sand are used for illustration of the proposed method. © 2011 John Wiley & Sons, Ltd.
Original languageEnglish
Pages (from-to)855-870
Number of pages16
JournalInternational Journal for Numerical and Analytical Methods in Geomechanics
Issue number8
Publication statusPublished - 10 Jun 2013
Externally publishedYes


  • Anisotropy
  • Dilatancy
  • Micromechanics
  • Plasticity
  • Sand
  • Unloading

ASJC Scopus subject areas

  • Computational Mechanics
  • General Materials Science
  • Geotechnical Engineering and Engineering Geology
  • Mechanics of Materials


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