Undrained cyclic simple shear simulation of liquefiable granular particles subjected to large shear strains up to 100% by 3D DEM

Research output: Contribution to conferencePaperpeer-review

Abstract

To clarify the influence of large shear strain on the cyclic behavior on liquefiable granular materials, a series of undrained cyclic simple shear simulations were carried out by utilizing 3D discrete element method (DEM). The amplitudes of the cyclic shear strain loaded on specimens range from 0.3% to 100%. The results show that when the cyclic shear strain loaded exceeds a certain amplitude, both the loose and the dense specimens exhibited high energy absorption properties, positive dilatancy characteristics, and non-liquefaction behaviors. This phenomenon might be caused by the uneven spatial distribution of particles during cyclic shear loadings. In addition, the liquefiable cyclic shear strain amplitude range is affected by the density and particle size of specimens.

Original languageEnglish
Pages53-58
Number of pages6
DOIs
Publication statusPublished - 2020
Event8th Japan-China Geotechnical Symposium: Challenges to Breakthrough in Geotechnic - Kyoto, Japan
Duration: 2020 Sep 282020 Sep 29

Conference

Conference8th Japan-China Geotechnical Symposium: Challenges to Breakthrough in Geotechnic
Country/TerritoryJapan
CityKyoto
Period20/9/2820/9/29

Keywords

  • 3d discrete element method
  • Cyclic simple shear
  • Large shear strain
  • Liquefaction

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

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