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    Volume 42, Issue 4 (July 2019)

    Energy Dissipation and Pore Pressure Generation in Stress- and Strain-Controlled Cyclic Triaxial Tests

    (Received 30 November 2017; accepted 11 May 2018)

    Published Online: 2018

    CODEN: GTJODJ

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    Abstract

    The pore pressures generated in soils subjected to cyclic loadings have been shown to be proportional to the energy dissipated in the soil during that loading. Both stress-controlled and strain-controlled cyclic triaxial tests can be used to develop parameters for energy-based pore pressure models; however, the patterns of their energy dissipation into the soil are quite different. In this study, the two patterns of energy-dissipation associated with stress-controlled and strain-controlled cyclic triaxial tests were developed and then confirmed using sixteen stress-controlled and sixteen strain-controlled cyclic triaxial tests. Additionally, it was shown that the patterns of pore-pressure generation for the two tests, which differ greatly when evaluated relative to the cycles of loading, were very similar when evaluated in terms of their energy dissipation.

    Author Information:

    Polito, Carmine P.
    Department of Civil Engineering, Valparaiso University, Valparaiso, IN

    Moldenhauer, Henry H. M.
    Department of Aerospace Engineering, Iowa State University, Ames, IA


    Stock #: GTJ20170437

    ISSN:0149-6115

    DOI: 10.1520/GTJ20170437

    Author
    Title Energy Dissipation and Pore Pressure Generation in Stress- and Strain-Controlled Cyclic Triaxial Tests
    Symposium ,
    Committee D18