Yu, HS, Yang, LT, Li, X et al. (1 more author) (2016) Experimental investigation on the deformation characteristics of granular materials under drained rotational shear. Geomechanics and Geoengineering, 11 (1). pp. 47-63. ISSN 1748-6025
Abstract
Rotational shear is the type of loading path where samples are subjected to cyclic rotation of principal stress directions while the magnitudes of principal stresses are maintained constant. This paper presents results from an experimental investigation on the drained deformation behaviour of saturated sand in rotational shear conducted in a hollow cylinder apparatus. Two types of granular materials, Leighton Buzzard sand and glass beads are tested. A range of influential factors are investigated including the material density, the deviatoric stress level, and the intermediate principal stress. It is observed that the volumetric strain during rotational shear is mainly contractive and most of strains are generated during the first 20 cycles. The mechanical behaviour of sand under rotational shear is generally non-coaxial, i.e., there is no coincidence between the principal axes of stress and incremental strain, and the variation of the non-coaxiality shows a periodic trend during the tests. The stress ratio has a significant effect on soil response in rotational shear. The larger the stress ratio, the more contractive behaviour and the lower degree of non-coaxiality are induced. The test also demonstrates that the effect of the intermediate principal stress, material density and particle shape on the results is pronounced.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | (c) 2014, Taylor & Francis. This is an Accepted Manuscript of an article published by Taylor & Francis in Geomechanics and Geoengineering on 8 April 2015, available online: https://doi.org/10.1080/17486025.2015.1006267 Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | sand, rotational shear, anisotropy, deformation, non-coaxial, stress-strain |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > EPS Faculty Services (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 13 Dec 2016 12:56 |
Last Modified: | 30 Jun 2020 14:55 |
Published Version: | https://doi.org/10.1080/17486025.2015.1006267 |
Status: | Published |
Publisher: | Taylor & Francis |
Identification Number: | 10.1080/17486025.2015.1006267 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:109369 |