Direct observation of particle kinematics in biaxial shearing test

Usman Ali; Mamoru Kikumoto; Matteo Oryem Ciantia; Ying Cui

doi:10.20933/100001233

Direct observation of particle kinematics in biaxial shearing test

Usman Ali, Mamoru Kikumoto (Lead / Corresponding author), Matteo Oryem Ciantia, Ying Cui

Civil Engineering

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

177 Downloads (Pure)

Abstract

Biaxial shearing tests on dual-sized, 2d particle assemblies are conducted at several confining pressures. The effect of particle angularity, an important mesoscale shape descriptor, is investigated at the macro and micro levels. Macroscopically, it is observed that assemblies composed of angular particles exhibit higher strengths and dilations. The difference observed in bulk behavior due to particle angularity can be explained reasonably by considering particle-level mechanisms. A novel 2D image analysis technique is employed to estimate particle kinematics. Particle rotation results to be a key mechanism strongly influenced by particle shape determining the overall granular behavior. Unlike circular particles, angular ones are more resistant to rotations due to stronger interlocking and consequently exhibit higher strengths.

Original language	English
Title of host publication	Proceedings of the 18th UK Travelling Workshop
Subtitle of host publication	GeoMechanics: from Micro to Macro (GM3), Dundee, 2021
Editors	Matteo Ciantia, Marco Previtali, Malcolm Bolton
Place of Publication	Dundee
Publisher	University of Dundee
Pages	1-4
Number of pages	4
DOIs	https://doi.org/10.20933/100001233
Publication status	Published - 16 Dec 2021

Publication series

Name	GM3 Travelling Workshop Proceedings
Number	1

Keywords

Granular material
biaxial shearing
image analysis
particle rotation
particle shape

Access to Document

10.20933/100001233

Direct observation of particle kinematics in biaxial shearing testFinal published version, 457 KB

1 Book

Proceedings of the 18th UK Travelling Workshop: GeoMechanics: from Micro to Macro (GM3), Dundee, 2021
Ciantia, M. (Editor), Previtali, M. (Editor) & Bolton, M. (Editor), 16 Dec 2021, Dundee: University of Dundee. 50 p. (GM3 Travelling Workshop Proceedings; no. 1)
Research output: Book/Report › Book

Open Access
File

1169 Downloads (Pure)

Cite this

Ali, U., Kikumoto, M., Ciantia, M. O., & Cui, Y. (2021). Direct observation of particle kinematics in biaxial shearing test. In M. Ciantia, M. Previtali, & M. Bolton (Eds.), Proceedings of the 18th UK Travelling Workshop: GeoMechanics: from Micro to Macro (GM3), Dundee, 2021 (pp. 1-4). (GM3 Travelling Workshop Proceedings; No. 1). University of Dundee. https://doi.org/10.20933/100001233

Ali, Usman ; Kikumoto, Mamoru ; Ciantia, Matteo Oryem et al. / Direct observation of particle kinematics in biaxial shearing test. Proceedings of the 18th UK Travelling Workshop: GeoMechanics: from Micro to Macro (GM3), Dundee, 2021. editor / Matteo Ciantia ; Marco Previtali ; Malcolm Bolton. Dundee : University of Dundee, 2021. pp. 1-4 (GM3 Travelling Workshop Proceedings; 1).

@inproceedings{d237f362de96474aaba8d875a27de8e0,

title = "Direct observation of particle kinematics in biaxial shearing test",

abstract = "Biaxial shearing tests on dual-sized, 2d particle assemblies are conducted at several confining pressures. The effect of particle angularity, an important mesoscale shape descriptor, is investigated at the macro and micro levels. Macroscopically, it is observed that assemblies composed of angular particles exhibit higher strengths and dilations. The difference observed in bulk behavior due to particle angularity can be explained reasonably by considering particle-level mechanisms. A novel 2D image analysis technique is employed to estimate particle kinematics. Particle rotation results to be a key mechanism strongly influenced by particle shape determining the overall granular behavior. Unlike circular particles, angular ones are more resistant to rotations due to stronger interlocking and consequently exhibit higher strengths.",

keywords = "Granular material, biaxial shearing, image analysis, particle rotation, particle shape",

author = "Usman Ali and Mamoru Kikumoto and Ciantia, {Matteo Oryem} and Ying Cui",

year = "2021",

month = dec,

day = "16",

doi = "10.20933/100001233",

language = "English",

series = "GM3 Travelling Workshop Proceedings",

publisher = "University of Dundee",

number = "1",

pages = "1--4",

editor = "Matteo Ciantia and Marco Previtali and Malcolm Bolton",

booktitle = "Proceedings of the 18th UK Travelling Workshop",

}

Ali, U, Kikumoto, M, Ciantia, MO & Cui, Y 2021, Direct observation of particle kinematics in biaxial shearing test. in M Ciantia, M Previtali & M Bolton (eds), Proceedings of the 18th UK Travelling Workshop: GeoMechanics: from Micro to Macro (GM3), Dundee, 2021. GM3 Travelling Workshop Proceedings, no. 1, University of Dundee, Dundee, pp. 1-4. https://doi.org/10.20933/100001233

Direct observation of particle kinematics in biaxial shearing test. / Ali, Usman; Kikumoto, Mamoru (Lead / Corresponding author); Ciantia, Matteo Oryem et al.
Proceedings of the 18th UK Travelling Workshop: GeoMechanics: from Micro to Macro (GM3), Dundee, 2021. ed. / Matteo Ciantia; Marco Previtali; Malcolm Bolton. Dundee: University of Dundee, 2021. p. 1-4 (GM3 Travelling Workshop Proceedings; No. 1).

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

TY - GEN

T1 - Direct observation of particle kinematics in biaxial shearing test

AU - Ali, Usman

AU - Kikumoto, Mamoru

AU - Ciantia, Matteo Oryem

AU - Cui, Ying

PY - 2021/12/16

Y1 - 2021/12/16

N2 - Biaxial shearing tests on dual-sized, 2d particle assemblies are conducted at several confining pressures. The effect of particle angularity, an important mesoscale shape descriptor, is investigated at the macro and micro levels. Macroscopically, it is observed that assemblies composed of angular particles exhibit higher strengths and dilations. The difference observed in bulk behavior due to particle angularity can be explained reasonably by considering particle-level mechanisms. A novel 2D image analysis technique is employed to estimate particle kinematics. Particle rotation results to be a key mechanism strongly influenced by particle shape determining the overall granular behavior. Unlike circular particles, angular ones are more resistant to rotations due to stronger interlocking and consequently exhibit higher strengths.

AB - Biaxial shearing tests on dual-sized, 2d particle assemblies are conducted at several confining pressures. The effect of particle angularity, an important mesoscale shape descriptor, is investigated at the macro and micro levels. Macroscopically, it is observed that assemblies composed of angular particles exhibit higher strengths and dilations. The difference observed in bulk behavior due to particle angularity can be explained reasonably by considering particle-level mechanisms. A novel 2D image analysis technique is employed to estimate particle kinematics. Particle rotation results to be a key mechanism strongly influenced by particle shape determining the overall granular behavior. Unlike circular particles, angular ones are more resistant to rotations due to stronger interlocking and consequently exhibit higher strengths.

KW - Granular material

KW - biaxial shearing

KW - image analysis

KW - particle rotation

KW - particle shape

U2 - 10.20933/100001233

DO - 10.20933/100001233

M3 - Conference contribution

T3 - GM3 Travelling Workshop Proceedings

SP - 1

EP - 4

BT - Proceedings of the 18th UK Travelling Workshop

A2 - Ciantia, Matteo

A2 - Previtali, Marco

A2 - Bolton, Malcolm

PB - University of Dundee

CY - Dundee

ER -

Direct observation of particle kinematics in biaxial shearing test

Abstract

Publication series

Keywords

Access to Document

Fingerprint

Research output

Proceedings of the 18th UK Travelling Workshop: GeoMechanics: from Micro to Macro (GM3), Dundee, 2021

Cite this