Evaluating the particle rolling effect on the characteristic features of granular material under the critical state soil mechanics framework
| Autor: | Md. Mizanur Rahman, Nick Barnett, Hoang Bao Khoi Nguyen, M. R. Karim |
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| Přispěvatelé: | Barnett, N, Rahman, Md Mizanur, Karim, Md Rajibul, Nguyen, HBK |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Dilatant
Materials science rolling resistance Rolling resistance 0211 other engineering and technologies General Physics and Astronomy 02 engineering and technology Mechanics Granular material 01 natural sciences Instability Discrete element method critical state soil mechanics constitutive behaviour Mechanics of Materials Phase (matter) 0103 physical sciences fabric/structure of soils discrete-element modelling Particle General Materials Science 010306 general physics Critical state soil mechanics 021101 geological & geomatics engineering |
| Popis: | 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 inluence on characteristic behaviour has not been thoroughly investigated within critical state soil mechanics (CSSM) framework. For instance, the inluence 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 inluence 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 inluence of rolling resistance on CS-related behaviour. Refereed/Peer-reviewed |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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