Detection of surface breaking cracks in concrete members using Rayleigh waves

A. Zerwer*, M. A. Polak, J. C. Santamarina

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

This study examines the use of Rayleigh waves for the detection and sizing of surface-breaking cracks in concrete members. First, finite element simulations are performed to define the conditions for Rayleigh wave propagation in members with rectangular cross-section followed by an experimental study with a concrete beam. Time histories recorded at different locations are 2D Fourier transformed into the frequency-wavenumber domain to enhance interpretation and data analysis. Rayleigh waves form at depths less than half the beam depth. With the introduction of a slot, Rayleigh waves are not observed behind the slot, except for the shortest slot depth, and the slot depth cannot be estimated in the frequency-wavenumber domain. Autospectrum calculations reveal strong Rayleigh wave reflections in front of the slot and by can be used to estimate slot depth when the wavelength is less than half the beam depth.

Original languageEnglish (US)
Pages (from-to)295-306
Number of pages12
JournalJournal of Environmental and Engineering Geophysics
Volume10
Issue number3
StatePublished - Sep 2005
Externally publishedYes

ASJC Scopus subject areas

  • Environmental Engineering
  • Geotechnical Engineering and Engineering Geology
  • Geophysics

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