Modelling cohesive-frictional particulate solids for bulk handling applications

John P. Morrissey; Subhash C. Thakur; Jin Sun; Jian Fei Chen; Jin Y. Ooi

Modelling cohesive-frictional particulate solids for bulk handling applications

John P. Morrissey^*, Subhash C. Thakur, Jin Sun, Jian Fei Chen, Jin Y. Ooi

^*Corresponding author for this work

School of Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Many powders and particulate solids are cohesive in nature and the strength often exhibits dependence on the consolidation stress. As a result, the stress history in the material leading up to a handling scenario needs to be considered when evaluating its handleability. This paper outlines the development of a DEM contact model accounting for plasticity and adhesion force, which is shown to be suitable for modelling the stress history dependent cohesive strength. The model was used to simulate the confined consolidation and the subsequent unconfined loading of iron ore fines with particle sizes up to 1.18mm. The predicted flow function was found to be comparable to the experimental results.

Original language	English
Title of host publication	Particle-Based Methods II - Fundamentals and Applications
Pages	33-42
Number of pages	10
Publication status	Published - 1 Dec 2011
Event	2nd International Conference on Particle-Based Methods, PARTICLES 2011 - Barcelona, Spain Duration: 26 Oct 2011 → 28 Oct 2011

Publication series

Name	Particle-Based Methods II - Fundamentals and Applications

Conference

Conference	2nd International Conference on Particle-Based Methods, PARTICLES 2011
Country/Territory	Spain
City	Barcelona
Period	26/10/11 → 28/10/11

Keywords

Adhesion
Cohesive solid
Contact model
Discrete element method (DEM)
Granular material

Cite this

@inproceedings{36b262ac56ee44a3a83c458e23ced586,

title = "Modelling cohesive-frictional particulate solids for bulk handling applications",

abstract = "Many powders and particulate solids are cohesive in nature and the strength often exhibits dependence on the consolidation stress. As a result, the stress history in the material leading up to a handling scenario needs to be considered when evaluating its handleability. This paper outlines the development of a DEM contact model accounting for plasticity and adhesion force, which is shown to be suitable for modelling the stress history dependent cohesive strength. The model was used to simulate the confined consolidation and the subsequent unconfined loading of iron ore fines with particle sizes up to 1.18mm. The predicted flow function was found to be comparable to the experimental results.",

keywords = "Adhesion, Cohesive solid, Contact model, Discrete element method (DEM), Granular material",

author = "Morrissey, {John P.} and Thakur, {Subhash C.} and Jin Sun and Chen, {Jian Fei} and Ooi, {Jin Y.}",

year = "2011",

month = dec,

day = "1",

language = "English",

isbn = "9788489925670",

series = "Particle-Based Methods II - Fundamentals and Applications",

pages = "33--42",

booktitle = "Particle-Based Methods II - Fundamentals and Applications",

note = "2nd International Conference on Particle-Based Methods, PARTICLES 2011 ; Conference date: 26-10-2011 Through 28-10-2011",

}

Morrissey, JP, Thakur, SC, Sun, J, Chen, JF & Ooi, JY 2011, Modelling cohesive-frictional particulate solids for bulk handling applications. in Particle-Based Methods II - Fundamentals and Applications. Particle-Based Methods II - Fundamentals and Applications, pp. 33-42, 2nd International Conference on Particle-Based Methods, PARTICLES 2011, Barcelona, Spain, 26/10/11.

TY - GEN

T1 - Modelling cohesive-frictional particulate solids for bulk handling applications

AU - Morrissey, John P.

AU - Thakur, Subhash C.

AU - Sun, Jin

AU - Chen, Jian Fei

AU - Ooi, Jin Y.

PY - 2011/12/1

Y1 - 2011/12/1

N2 - Many powders and particulate solids are cohesive in nature and the strength often exhibits dependence on the consolidation stress. As a result, the stress history in the material leading up to a handling scenario needs to be considered when evaluating its handleability. This paper outlines the development of a DEM contact model accounting for plasticity and adhesion force, which is shown to be suitable for modelling the stress history dependent cohesive strength. The model was used to simulate the confined consolidation and the subsequent unconfined loading of iron ore fines with particle sizes up to 1.18mm. The predicted flow function was found to be comparable to the experimental results.

AB - Many powders and particulate solids are cohesive in nature and the strength often exhibits dependence on the consolidation stress. As a result, the stress history in the material leading up to a handling scenario needs to be considered when evaluating its handleability. This paper outlines the development of a DEM contact model accounting for plasticity and adhesion force, which is shown to be suitable for modelling the stress history dependent cohesive strength. The model was used to simulate the confined consolidation and the subsequent unconfined loading of iron ore fines with particle sizes up to 1.18mm. The predicted flow function was found to be comparable to the experimental results.

KW - Adhesion

KW - Cohesive solid

KW - Contact model

KW - Discrete element method (DEM)

KW - Granular material

UR - http://www.scopus.com/inward/record.url?scp=84860226972&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:84860226972

SN - 9788489925670

T3 - Particle-Based Methods II - Fundamentals and Applications

SP - 33

EP - 42

BT - Particle-Based Methods II - Fundamentals and Applications

T2 - 2nd International Conference on Particle-Based Methods, PARTICLES 2011

Y2 - 26 October 2011 through 28 October 2011

ER -

Modelling cohesive-frictional particulate solids for bulk handling applications

Abstract

Publication series

Conference

Keywords

Other files and links

Fingerprint

Discrete Element Modelling of Iron Ore Pellets to Include the Effects of Moisture and Fines

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