Volume 19, Issue 2 (June 1996)

    Wave Propagation in Soils: Multi-Mode, Wide-Band Testing in a Waveguide Device

    CODEN: GTJOAD

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    Abstract

    This paper presents the development of a waveguide device and the corresponding processing methodology to study wave propagation in particulate materials. Its main advantages are: the cancellation of biasing transfer functions (e.g., transducer, coupling, and electronics); the determination of both velocity and attenuation in a wide frequency range; the evaluation of torsional, flexural, and longitudinal propagation modes; and the computation of field propagation parameters from laboratory multi-mode data. Fundamentals of signal processing are reviewed, followed by a discussion of design considerations including boundary effects and geometric dispersion. Typical results are presented.


    Author Information:

    Fratta, D
    Graduate student and associate professor, School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA

    Santamarina, JC
    Graduate student and associate professor, School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA


    Stock #: GTJ10336J

    ISSN: 0149-6115

    DOI: 10.1520/GTJ10336J

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    Author
    Title Wave Propagation in Soils: Multi-Mode, Wide-Band Testing in a Waveguide Device
    Symposium , 0000-00-00
    Committee D18