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    Special Stress Paths Along the Limit Surface of a Sand Specimen with the Use of a True Triaxial Apparatus

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    This paper presents a true triaxial apparatus with rigid platens and its means of measurement and regulation. For tests performed on dry sand specimens, the loss of homogeneity by localization of deformation along shear bands is first analyzed. Then special circular paths in deviatoric stress plane are obtained. If the radius of this path is large enough, the author shows that the actual stress point moves on the limit surface which is well approximated experimentally. The more surprising result is that the volume of the specimen, on such cyclic paths, decreases. This result outlines the danger of liquefaction even for dense sand under complex stress path.


    dry sand, limit surface, cyclic behavior, liquefaction, true triaxial, localization, shear bands

    Author Information:

    Lanier, J
    Maitre de Conférences, Institut de Mécanique de Grenoble, Grenoble, Cedex,

    Committee/Subcommittee: D18.05

    DOI: 10.1520/STP29120S