Wave propagation in soils: Multi-mode, wide-band testing in a waveguide device

Daute Fratta*, Juan Carlos Santamarina

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)130-140
Number of pages11
JournalGeotechnical Testing Journal
Volume19
Issue number2
StatePublished - Jun 1 1996

Keywords

  • Attenuation
  • Damping
  • Material testing
  • Phase velocity
  • Signal processing
  • Wave propagation

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

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