location: Current position: Home >> Scientific Research >> Paper Publications

Mechanical transitional behavior of binary mixtures via DEM: Effect of differences in contact-type friction coefficients

Hits:

Indexed by:期刊论文

Date of Publication:2017-05-01

Journal:COMPUTERS AND GEOTECHNICS

Included Journals:SCIE、EI

Volume:85

Page Number:1-14

ISSN No.:0266-352X

Key Words:Granular mixtures; Drained biaxial tests; Peak shear strength; Thresholds; Anisotropic analysis; Contact types

Abstract:This report presents a numerical investigation of the shear behavior of binary mixtures via a two-dimensional discrete element method. The effect of the coarse particle content on the peak shear strength of mixtures is investigated for different contact-type friction coefficients. A detailed analysis on the ani-sotropies enables us to understand the microscopic mechanisms that result in the dependency of the peak shear strengths on the coarse particle content. The contributions of different contact types to the peak shear strength are quantified. Lastly, the inter-particles structures are examined when the binary mixtures become coarse-particle-supported structures. (C) 2016 Elsevier Ltd. All rights reserved.

Pre One:板翼动力锚水中自由下落过程数值模拟

Next One:Analysis of the thresholds of granular mixtures using the discrete element method