Investigation of the deformable behavior of loose and dense sand through DEM

Yi Yang, Run Qiu Huang, Yung Ming Cheng, Jian Feng Wang

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

The deformable behavior of ideal granular material under external loading, especially in monotonic condition, has always been of keen interest to geotechnical engineers. Earlier researchers have reproduced the fundamental stress-strain-dilation relationships at macro scale by distinct element method (DEM). Particle shape and servo controlled boundary are always assumed to be in regular and rigid conditions. In this paper, the elongated particles are prepared for generating loose and dense consolidated specimen. Meanwhile, lateral flexible boundary is applied for simulatingthe visualizedshear band, where the confining stress is fixed at 50kPa for loading procedure. The evaluations of macro qualities or micro statistical indexes are presented for finding the characteristic states of Quasi-static shear deformation. The results indicate that the initial particles' internal contact and spatial arrangement would govern the followed shearing behavior.
Original languageEnglish
Title of host publicationApplied Mechanics, Fluid and Solid Mechanics
Pages124-128
Number of pages5
DOIs
Publication statusPublished - 16 Jan 2014
Event2013 International Conference on Applied Mechanics, Fluid and Solid Mechanics, AMFSM 2013 - , Singapore
Duration: 15 Nov 201316 Dec 2013

Publication series

NameAdvanced Materials Research
Volume871
ISSN (Print)1022-6680

Conference

Conference2013 International Conference on Applied Mechanics, Fluid and Solid Mechanics, AMFSM 2013
Country/TerritorySingapore
Period15/11/1316/12/13

Keywords

  • Biaxial test
  • Critical state
  • DEM
  • Loose and dense sand

ASJC Scopus subject areas

  • Engineering(all)

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