Grading effect on critical state behavior of granular materials

G. Li, Y.-J. Liu, Zhenyu Yin, C. Dano, P.-Y. Hicher

Research output: Journal article publicationJournal articleAcademic researchpeer-review

8 Citations (Scopus)

Abstract

By adopting the idealized granular materials (DEM sphere), artificial materials (glass bead) and natural materials (Hostun sand), the grading effect on the stress-strain and the critical state behavior of granular materials is investigated through numerical and conventional drained triaxial tests. The results reveal that for the samples with the same initial loading conditions (e0= 0.574, p'0 = 400 kPa), granular materials with a wider particle distribution display more contractive behavior and also strain hardening upon shearing. Furthermore it is found that the critical state line in the e-p' plane shifts downward as grading broadens with an increase of the coefficient of uniformity Cu, whereas the critical state line in the q-p' plane appears to be independent of the coefficient of uniformity Cu.
Original languageEnglish
Pages (from-to)452-457
Number of pages6
JournalYantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering
Volume36
Issue number3
DOIs
Publication statusPublished - 1 Jan 2014
Externally publishedYes

Keywords

  • Critical state
  • DEM
  • Grain size distribution
  • Granular material
  • Triaxial drained test

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

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