Effect of surface cracks on Rayleigh wave propagation: An experimental study

A. Zerwer; M. A. Polak; J. C. Santamarina

doi:10.1061/(ASCE)0733-9445(2002)128:2(240)

Effect of surface cracks on Rayleigh wave propagation: An experimental study

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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

This experimental study investigates the use of Rayleigh waves for crack detection in structural elements. Receiver arrays measure surface accelerations at various locations with respect to a vertical slot cut into a thin Plexiglas sheet. Two-dimensional Fourier transform calculations provide Rayleigh wave dispersion and energy with respect to various slot depths. In addition, autospectrum calculations aid in defining slot location. It is shown that slots reflect short wavelengths and allow the transmission of long wavelengths. Slot location is easily identified from autospectrum measurements; however, accurate determination of slot depth is dependent on the aperture function of the array.

Original language	English (US)
Pages (from-to)	240-248
Number of pages	9
Journal	Journal of Structural Engineering
Volume	128
Issue number	2
DOIs	https://doi.org/10.1061/(ASCE)0733-9445(2002)128:2(240)
State	Published - Feb 2002
Externally published	Yes

Keywords

Cracking
Nondestructive evaluation
Rayleigh waves
Wave propagation

ASJC Scopus subject areas

Civil and Structural Engineering
Building and Construction
General Materials Science
Mechanics of Materials
Mechanical Engineering

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10.1061/(ASCE)0733-9445(2002)128:2(240)

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title = "Effect of surface cracks on Rayleigh wave propagation: An experimental study",

abstract = "This experimental study investigates the use of Rayleigh waves for crack detection in structural elements. Receiver arrays measure surface accelerations at various locations with respect to a vertical slot cut into a thin Plexiglas sheet. Two-dimensional Fourier transform calculations provide Rayleigh wave dispersion and energy with respect to various slot depths. In addition, autospectrum calculations aid in defining slot location. It is shown that slots reflect short wavelengths and allow the transmission of long wavelengths. Slot location is easily identified from autospectrum measurements; however, accurate determination of slot depth is dependent on the aperture function of the array.",

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AU - Polak, M. A.

AU - Santamarina, J. C.

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Y1 - 2002/2

N2 - This experimental study investigates the use of Rayleigh waves for crack detection in structural elements. Receiver arrays measure surface accelerations at various locations with respect to a vertical slot cut into a thin Plexiglas sheet. Two-dimensional Fourier transform calculations provide Rayleigh wave dispersion and energy with respect to various slot depths. In addition, autospectrum calculations aid in defining slot location. It is shown that slots reflect short wavelengths and allow the transmission of long wavelengths. Slot location is easily identified from autospectrum measurements; however, accurate determination of slot depth is dependent on the aperture function of the array.

AB - This experimental study investigates the use of Rayleigh waves for crack detection in structural elements. Receiver arrays measure surface accelerations at various locations with respect to a vertical slot cut into a thin Plexiglas sheet. Two-dimensional Fourier transform calculations provide Rayleigh wave dispersion and energy with respect to various slot depths. In addition, autospectrum calculations aid in defining slot location. It is shown that slots reflect short wavelengths and allow the transmission of long wavelengths. Slot location is easily identified from autospectrum measurements; however, accurate determination of slot depth is dependent on the aperture function of the array.

KW - Cracking

KW - Nondestructive evaluation

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KW - Wave propagation

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JO - Journal of Structural Engineering

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IS - 2

ER -

Effect of surface cracks on Rayleigh wave propagation: An experimental study

Abstract

Keywords

ASJC Scopus subject areas

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