eprintid: 10197713
rev_number: 7
eprint_status: archive
userid: 699
dir: disk0/10/19/77/13
datestamp: 2024-09-30 10:34:14
lastmod: 2024-09-30 10:34:14
status_changed: 2024-09-30 10:34:14
type: article
metadata_visibility: show
sword_depositor: 699
creators_name: Dong, ZL
creators_name: Cheng, YP
creators_name: Tong, CX
creators_name: Liu, H
creators_name: Zhang, S
creators_name: Sheng, D
title: DEM modelling of particle crushing of single carbonate sand using the improved bonded particle model
ispublished: pub
divisions: UCL
divisions: B04
divisions: F44
keywords: Science & Technology, Technology, Engineering, Chemical, Engineering, Carbonate sand, Particle shape, Intra-particle pores, Single-particle crushing, DEM simulation
note: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
abstract: Carbonate sands have complex particle morphology and abundant intra-particle pores, influencing their mechanical beahviours. This paper presents a detailed modelling procedure for single-particle crushing of carbonate sands with different shapes. The particles were scanned, and their realistic profiles were simplified using a curvature-based simplification technique before being imported into the DEM program. An improved bonded particle model using coplanar Voronoi polyhedrons as cells was adopted, and the internal porosity of carbonate sands, which follows a Weibull distribution, was modelled by randomly removing internal cells. The effects of local damping and loading rate on crushing responses are discussed and their values are carefully determined. Four loading stages were observed during platen compression. Particles with different shapes experienced varying degrees of tension and shear failure in internal bonds and exhibited different probabilities of splitting, explosive, and chipping failures. The work presented lays the groundwork for subsequent simulations of carbonate assemblies.
date: 2024-09-01
date_type: published
publisher: ELSEVIER
official_url: http://dx.doi.org/10.1016/j.powtec.2024.120121
full_text_type: other
language: eng
verified: verified_manual
elements_id: 2303833
doi: 10.1016/j.powtec.2024.120121
lyricists_name: Cheng, Yi
lyricists_id: YPCHE61
actors_name: Cheng, Yi
actors_id: YPCHE61
actors_role: owner
funding_acknowledgements: 52378382 [National Natural Science Foun-dation of China]; 2022ZZTS0151 [Innovation-Driven Project of Central South University]; [China Scholarship Council]
full_text_status: restricted
publication: Powder Technology
volume: 445
article_number: 120121
pages: 17
issn: 0032-5910
citation:        Dong, ZL;    Cheng, YP;    Tong, CX;    Liu, H;    Zhang, S;    Sheng, D;      (2024)    DEM modelling of particle crushing of single carbonate sand using the improved bonded particle model.                   Powder Technology , 445     , Article 120121.  10.1016/j.powtec.2024.120121 <https://doi.org/10.1016/j.powtec.2024.120121>.      
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10197713/1/2024%20Dong%20DEM%20SPC%20carbonate%20particles%20_accepted%20PowderTech.pdf