Laboratory Analyses of Noncoaxiality and Anisotropy of Spherical Granular Media under True Triaxial State

Li, K; Li, X; Chen, Q; Nimbalkar, S

Laboratory Analyses of Noncoaxiality and Anisotropy of Spherical Granular Media under True Triaxial State

Li, K Li, X Chen, Q Nimbalkar, S

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Publisher:: ASCE-AMER SOC CIVIL ENGINEERS
Publication Type:: Journal Article
Citation:: International Journal of Geomechanics, 2023, 23, (9)
Issue Date:: 2023-09-01

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Field	Value	Language
dc.contributor.author	Li, K
dc.contributor.author	Li, X
dc.contributor.author	Chen, Q
dc.contributor.author	Nimbalkar, S https://orcid.org/0000-0002-1538-3396
dc.date.accessioned	2024-04-12T09:26:47Z
dc.date.available	2024-04-12T09:26:47Z
dc.date.issued	2023-09-01
dc.identifier.citation	International Journal of Geomechanics, 2023, 23, (9)
dc.identifier.issn	1532-3641
dc.identifier.issn	1943-5622
dc.identifier.uri	http://hdl.handle.net/10453/177862
dc.description.abstract	Anisotropy of the soil is responsible for its noncoaxial response. In simple shear and hollow cylindrical torsional shear tests, considerable noncoaxial responses were detected as a result of the stress-induced anisotropy caused by the rotation of the principal stress axis, while true triaxial tests on the noncoaxial and anisotropic response of perfectly spherical particles have seldom been reported. In consideration of the influence of the three principal stress orientations, true triaxial tests were conducted on uniformly sized spherical glass balls using the stress path of fixed-axis shear with constant values of p′ and b in the deviatoric plane. Samples with inherent anisotropy were prepared to study the evolution of noncoaxiality and anisotropy as a result of the loading process across the entire deviatoric plane. Test results indicate that the glass bead samples exhibit minor deformation and strength anisotropy in various sections of the deviatoric plane. The noncoaxial behaviors exhibit apparent orientation-dependent and b-dependent properties. This study would provide a valuable reference for granular materials with different shapes and gradations in nature that are subjected to true triaxial stress conditions.
dc.language	English
dc.publisher	ASCE-AMER SOC CIVIL ENGINEERS
dc.relation.ispartof	International Journal of Geomechanics
dc.relation.isbasedon	10.1061/IJGNAI.GMENG-8309
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0905 Civil Engineering, 0914 Resources Engineering and Extractive Metallurgy
dc.subject.classification	General Mathematics
dc.subject.classification	4005 Civil engineering
dc.subject.classification	4019 Resources engineering and extractive metallurgy
dc.title	Laboratory Analyses of Noncoaxiality and Anisotropy of Spherical Granular Media under True Triaxial State
dc.type	Journal Article
utslib.citation.volume	23
utslib.for	0905 Civil Engineering
utslib.for	0914 Resources Engineering and Extractive Metallurgy
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
utslib.copyright.status	closed_access	*
dc.date.updated	2024-04-12T09:26:45Z
pubs.issue	9
pubs.publication-status	Published
pubs.volume	23
utslib.citation.issue	9

Abstract:

Anisotropy of the soil is responsible for its noncoaxial response. In simple shear and hollow cylindrical torsional shear tests, considerable noncoaxial responses were detected as a result of the stress-induced anisotropy caused by the rotation of the principal stress axis, while true triaxial tests on the noncoaxial and anisotropic response of perfectly spherical particles have seldom been reported. In consideration of the influence of the three principal stress orientations, true triaxial tests were conducted on uniformly sized spherical glass balls using the stress path of fixed-axis shear with constant values of p′ and b in the deviatoric plane. Samples with inherent anisotropy were prepared to study the evolution of noncoaxiality and anisotropy as a result of the loading process across the entire deviatoric plane. Test results indicate that the glass bead samples exhibit minor deformation and strength anisotropy in various sections of the deviatoric plane. The noncoaxial behaviors exhibit apparent orientation-dependent and b-dependent properties. This study would provide a valuable reference for granular materials with different shapes and gradations in nature that are subjected to true triaxial stress conditions.

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http://hdl.handle.net/10453/177862