Micro-characteristics of monodisperse and best-packing mixture samples under one dimensional compression

N. H. Minh, Y. P. Cheng

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

One dimensional compression behavior of poorly graded soils and their mixtures have been investigated using the discrete element method PFC3D software package with spherical particles and a size-related linear elastic contact model. Simulation results show that, for soil samples of the same grading that were compressed from different initial solid fractions, there exists a unique relationship between solid fraction and vertical stress at high stress levels. Contact force distributions of these different samples fall on a similar distribution curve in the same stress range. There is also a convergence for the size distributions of particles involved in the transmission of greater-than-average (strong) contact forces in each system. The results are mainly presented for a sand-like monodisperse material and a best packing efficiency mixture material. Cumulative contributions of individual contact forces to the deviator stress were calculated and the results show that the deviator stress is primarily attributed to the strong forces for both monodisperse and mixture materials.

Original languageEnglish
Title of host publicationPowders and Grains 2013 - Proceedings of the 7th International Conference on Micromechanics of Granular Media
Pages265-268
Number of pages4
Volume1542
DOIs
Publication statusPublished - 2013
Event7th International Conference on Micromechanics of Granular Media: Powders and Grains 2013 - Sydney, NSW, Australia
Duration: Jul 8 2013Jul 12 2013

Conference

Conference7th International Conference on Micromechanics of Granular Media: Powders and Grains 2013
CountryAustralia
CitySydney, NSW
Period7/8/137/12/13

Fingerprint

soils
force distribution
sands
computer programs
curves
simulation

Keywords

  • discrete element
  • force distribution
  • gap-graded
  • mixture
  • normal compression line
  • sand
  • silt
  • strong force

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Minh, N. H., & Cheng, Y. P. (2013). Micro-characteristics of monodisperse and best-packing mixture samples under one dimensional compression. In Powders and Grains 2013 - Proceedings of the 7th International Conference on Micromechanics of Granular Media (Vol. 1542, pp. 265-268) https://doi.org/10.1063/1.4811918

Micro-characteristics of monodisperse and best-packing mixture samples under one dimensional compression. / Minh, N. H.; Cheng, Y. P.

Powders and Grains 2013 - Proceedings of the 7th International Conference on Micromechanics of Granular Media. Vol. 1542 2013. p. 265-268.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Minh, NH & Cheng, YP 2013, Micro-characteristics of monodisperse and best-packing mixture samples under one dimensional compression. in Powders and Grains 2013 - Proceedings of the 7th International Conference on Micromechanics of Granular Media. vol. 1542, pp. 265-268, 7th International Conference on Micromechanics of Granular Media: Powders and Grains 2013, Sydney, NSW, Australia, 7/8/13. https://doi.org/10.1063/1.4811918
Minh NH, Cheng YP. Micro-characteristics of monodisperse and best-packing mixture samples under one dimensional compression. In Powders and Grains 2013 - Proceedings of the 7th International Conference on Micromechanics of Granular Media. Vol. 1542. 2013. p. 265-268 https://doi.org/10.1063/1.4811918
Minh, N. H. ; Cheng, Y. P. / Micro-characteristics of monodisperse and best-packing mixture samples under one dimensional compression. Powders and Grains 2013 - Proceedings of the 7th International Conference on Micromechanics of Granular Media. Vol. 1542 2013. pp. 265-268
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