Evaluating the particle rolling effect on the characteristic features of granular material under the critical state soil mechanics framework

The discrete element method (DEM) has been extensively used to capture the macroscopic and particulate response of granular materials. Although particle rolling (i.e. controlled by rolling resistance) has been acknowledged as a major contributing factor towards micro-mechanical behaviour of idealize...

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Bibliographic Details
Published in:Granular matter 2020-11, Vol.22 (4), Article 89
Main Authors: Barnett, N., Rahman, Md. Mizanur, Karim, Md. Rajibul, Nguyen, H. B. K.
Format: Article
Language:English
Subjects:
Complex Fluids and Microfluidics
Dilatancy
Discrete element method
Engineering Fluid Dynamics
Engineering Thermodynamics
Foundations
Geoengineering
Granular materials
Heat and Mass Transfer
Hydraulics
Industrial Chemistry/Chemical Engineering
Materials Science
Mechanical properties
Original Paper
Phase transitions
Physics
Physics and Astronomy
Rolling resistance
Soft and Granular Matter
Soil investigations
Soil mechanics
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Summary:The discrete element method (DEM) has been extensively used to capture the macroscopic and particulate response of granular materials. Although particle rolling (i.e. controlled by rolling resistance) has been acknowledged as a major contributing factor towards micro-mechanical behaviour of idealized spherical granular material, its influence on characteristic behaviour has not been thoroughly investigated within critical state soil mechanics (CSSM) framework. For instance, the influence of particle rolling on characteristic features of undrained and drained behaviour (e.g. phase transformation, characteristic state, instability, dilatancy, critical state) and the state parameter, ( ψ ) has not been captured. In this study, a series of constant volume (CV) and drained triaxial compression simulations were undertaken using a rolling resistance linear contact model, deployed within a DEM software. The CSSM framework was centrally used to assess the influence of particle rolling tendencies/resistance on CV and drained behaviours from both a macro- and micro-mechanical standpoint. The study advanced the current understanding of the influence of rolling resistance on CS-related behaviour. Graphic abstract
ISSN:1434-5021
1434-7636
DOI:10.1007/s10035-020-01055-5