Discussion: "Radial strain behaviors and stress state interpretation of soil under direct simple shear" by X. Kang, Y. Cheng, and L. Ge.

Li, Y.; Yang, Y. M.; Roberts, G. W.; Yu, H. S.

Abstract

Two methods were used in determining the stress state of simple shear tests in the discussed paper. The authors stated that the second method was proposed by Oda and Konishi, based on the distribution law of contact force (Oda, M. and Konishi, J., “Rotation of Principal Stresses in Granular Material During Simple,” Soils and Foundations., Vol. 14, No. 4, 1974, pp. 39–53.). However, the relation used in the method was found by Roscoe et al. from experimental results (Roscoe, K. H., Bassett, R. H., and Cole, E. R. L., “Principal Axes Observed During Simple Shear of a Sand,” Proceedings of the Geotechnical Conference on Shear Strength Properties of Natural Soils and Rocks, Vol. 1, Norwegian Geotechnical Institute, Oslo, 1967, pp. 231–237.). In addition, the determination of the constant k, which used k = 1 − K0, was problematic in the discussed paper. First, the equation could only be deduced after some assumptions were made. Second, the value of k was not a constant if the K0 changed.

Citation

Li, Y., Yang, Y. M., Roberts, G. W., & Yu, H. S. (2017). Discussion: "Radial strain behaviors and stress state interpretation of soil under direct simple shear" by X. Kang, Y. Cheng, and L. Ge. Journal of Testing and Evaluation, 45(2), https://doi.org/10.1520/jte20150447

• Journal Article Type: Article
• Acceptance Date: Oct 29, 2015
• Online Publication Date: Mar 22, 2016
• Publication Date: Mar 1, 2017
• Deposit Date: Oct 13, 2017
• Publicly Available Date: Oct 13, 2017
• Journal: Journal of Testing and Evaluation
• Print ISSN: 0090-3973
• Electronic ISSN: 1945-7553
• Publisher: ASTM International
• Peer Reviewed: Peer Reviewed
• Volume: 45
• Issue: 2
• DOI: https://doi.org/10.1520/jte20150447
• Keywords: Direct simple shear, stress state interpretation, K0, shear behavior
• Public URL: https://nottingham-repository.worktribe.com/output/843035
• Publisher URL: https://compass.astm.org/DIGITAL_LIBRARY/JOURNALS/TESTEVAL/PAGES/JTE20150447.htm
• Additional Information: The regular article was published in Journal of Testing and Evaluation, Vol. 43, No. 6, 2015, pp. 1594–1601.
• Contract Date: Oct 13, 2017