Discussion: Radial strain behaviors and stress state interpretation of soil under direct simple shear

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

Research output: Journal PublicationReview articlepeer-review

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.

Original languageEnglish
JournalJournal of Testing and Evaluation
Volume45
Issue number2
DOIs
Publication statusPublished - 1 Mar 2017

Keywords

  • Direct simple shear
  • K
  • Shear behavior
  • Stress state interpretation

ASJC Scopus subject areas

  • Materials Science (all)
  • Mechanics of Materials
  • Mechanical Engineering

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