Comptes Rendus
Influence of particle shape on the microstructure evolution and the mechanical properties of granular materials
Comptes Rendus. Mécanique, Volume 346 (2018) no. 6, pp. 460-476.

In order to study the influence of particle shape on the microstructure evolution and the mechanical properties of granular materials, a two-dimensional DEM analysis of samples with three particle shapes, including circular particles, triangular particles, and elongated particles, is proposed here to simulate the direct shear tests of coarse-grained soils. For the numerical test results, analyses are conducted in terms of particle rotations, fabric evolution, and average path length evolution. A modified Rowe's stress–dilatancy equation is also proposed and successfully fitted onto simulation data.

Reçu le :
Accepté le :
Publié le :
DOI : 10.1016/j.crme.2018.03.006
Mots clés : Particle shape, Direct shear simulation, Particle rotation, Fabric evolution, Average path length, Rowe's stress–dilatancy

Jianqiu Tian 1 ; Enlong Liu 1, 2 ; Lian Jiang 1 ; Xiaoqiong Jiang 1 ; Yi Sun 1 ; Ran Xu 3

1 State Key Laboratory of Hydraulics and Mountain River Engineering College of Water Resource & Hydropower, Sichuan University, Chengdu 610065, China
2 Northwest Institute of Eco-Environment and Resources, State Key Laboratory of Frozen Soil Engineering, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China
3 Institution of Disaster Management and Reconstruction, Sichuan University, Chengdu 610207, China
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     title = {Influence of particle shape on the microstructure evolution and the mechanical properties of granular materials},
     journal = {Comptes Rendus. M\'ecanique},
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Jianqiu Tian; Enlong Liu; Lian Jiang; Xiaoqiong Jiang; Yi Sun; Ran Xu. Influence of particle shape on the microstructure evolution and the mechanical properties of granular materials. Comptes Rendus. Mécanique, Volume 346 (2018) no. 6, pp. 460-476. doi : 10.1016/j.crme.2018.03.006. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2018.03.006/

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