Macro and micro analysis for grading-dependent mechanical behavior of granular materials

Y. J. Liu; Z. Y. Yin; P. Y. Hicher; J. H. Wang; X. H. Xia

doi:10.1061/9780784412992.129

Macro and micro analysis for grading-dependent mechanical behavior of granular materials

Y. J. Liu, Z. Y. Yin, P. Y. Hicher, J. H. Wang, X. H. Xia

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

7 Citations (Scopus)

Abstract

Influence of grading on the stress-strain and critical state behavior of granular materials is investigated by employing the three-dimensional discrete-element method (3D-DEM) through conventional drained triaxial tests in compression and extension. It is found that, under the same initial conditions (same e₀, p'₀), samples with a wider particle distribution exhibit more contractive. For each grading, a unique critical state line is achieved under different stress levels. The results from different gradings highlight that the critical state of the granular samples are significantly affected by the grading: the critical state line shifts down as the coefficient of uniformity (C_u) increases. A relationship between the location of CSL and the grading index C_u is then established. Micromechanical analyses are finally performed to confirm the macro finding of the grading dependency of mechanical behavior of granular materials.

Original language	English
Title of host publication	Poromechanics V - Proceedings of the 5th Biot Conference on Poromechanics
Pages	1082-1089
Number of pages	8
DOIs	https://doi.org/10.1061/9780784412992.129
Publication status	Published - 15 Nov 2013
Externally published	Yes
Event	5th Biot Conference on Poromechanics, BIOT 2013 - Vienna, Austria Duration: 10 Jul 2013 → 12 Jul 2013

Publication series

Name	Poromechanics V - Proceedings of the 5th Biot Conference on Poromechanics

Conference

Conference	5th Biot Conference on Poromechanics, BIOT 2013
Country/Territory	Austria
City	Vienna
Period	10/07/13 → 12/07/13

ASJC Scopus subject areas

Mechanics of Materials

More information

10.1061/9780784412992.129

Cite this

Liu, Y. J., Yin, Z. Y., Hicher, P. Y., Wang, J. H., & Xia, X. H. (2013). Macro and micro analysis for grading-dependent mechanical behavior of granular materials. In Poromechanics V - Proceedings of the 5th Biot Conference on Poromechanics (pp. 1082-1089). (Poromechanics V - Proceedings of the 5th Biot Conference on Poromechanics). https://doi.org/10.1061/9780784412992.129

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Liu, YJ, Yin, ZY, Hicher, PY, Wang, JH & Xia, XH 2013, Macro and micro analysis for grading-dependent mechanical behavior of granular materials. in Poromechanics V - Proceedings of the 5th Biot Conference on Poromechanics. Poromechanics V - Proceedings of the 5th Biot Conference on Poromechanics, pp. 1082-1089, 5th Biot Conference on Poromechanics, BIOT 2013, Vienna, Austria, 10/07/13. https://doi.org/10.1061/9780784412992.129

Macro and micro analysis for grading-dependent mechanical behavior of granular materials. / Liu, Y. J.; Yin, Z. Y.; Hicher, P. Y. et al.
Poromechanics V - Proceedings of the 5th Biot Conference on Poromechanics. 2013. p. 1082-1089 (Poromechanics V - Proceedings of the 5th Biot Conference on Poromechanics).

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

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Macro and micro analysis for grading-dependent mechanical behavior of granular materials

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