Effect of Stress Concentrations on the Cyclic Behavior of Sands

    Volume 3, Issue 3 (September 1980)

    ISSN: 0149-6115

    CODEN: GTJOAD

    Page Count: 8


    Chaney, RC
    Associate professorMember of ASTM, Lehigh University, Department of Civil Engineering, Marine Geotechnical Laboratory 17, Bethlehem, Pa.

    Stevens, E
    Senior soil technicians and senior electronics technicianmember of ASTM, Fugro Inc., Long Beach, Calif.

    Sheth, N
    Senior soil technicians and senior electronics technicianmember of ASTM, Fugro Inc., Long Beach, Calif.

    Hencey, E
    Senior soil technicians and senior electronics technicianmember of ASTM, Fugro Inc., Long Beach, Calif.

    Abstract

    A laboratory study is presented on the effect of rigid inclusions on the observed cyclic strength of sand specimens. The test program consisted of 20 cyclic triaxial strength tests. Sixteen of these tests were conducted on specimens that had a spherical cemented sand inclusion of varying diameter located in either the middle or upper third of the specimen. The remaining four specimens were homogeneous. Results indicated that the cyclic strength of a specimen with an inclusion was increased up to a maximum of 6 to 7% over that of a corresponding homogeneous specimen at an area ratio (area of inclusion/area of specimen) of 10%. An increase in the area ratio to 25% showed a decrease in cyclic strength to a level similar to that exhibited by a homogeneous specimen. In addition, for a constant area ratio the increase in cyclic strength was shown to be greatest for a low stress ratio.


    Paper ID: GTJ10880J

    DOI: 10.1520/GTJ10880J

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    Author
    Title Effect of Stress Concentrations on the Cyclic Behavior of Sands
    Symposium , 0000-00-00
    Committee D18