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Title: Characterization of Surface Cracks Using Rayleigh Waves

Abstract

The characterization of surface cracks in steel plates using surface acoustic waves is investigated. In the experiments Rayleigh wave is generated by a standard wedge technique and the surface displacement is measured pointwise by means of a heterodyne laser interferometer. The presence of a crack in the acoustic field leads to an amplitude increase due to the scattering of the surface wave at the defect. The time-of-flight method is extended to crack depth smaller than the wavelength by correlating the time delay of the transmitted wave with the defect depth. The method is shown to provide good results for defect depths down to 0.2 mm.

Authors:
;  [1]
  1. Department of Mechanical Engineering, ETH Zurich, CH-8092 Zurich (Switzerland)
Publication Date:
OSTI Identifier:
20655391
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 760; Journal Issue: 1; Conference: Conference on review of progress in quantitative nondestructive evaluation, Golden, CO (United States), 25-30 Jul 2004; Other Information: DOI: 10.1063/1.1916757; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; AMPLITUDES; CRACKS; DEFECTS; DETECTION; INTERFEROMETERS; LASERS; NONDESTRUCTIVE TESTING; RAYLEIGH WAVES; SCATTERING; SOUND WAVES; STEELS; SURFACES; TIME DELAY; TIME-OF-FLIGHT METHOD; WAVELENGTHS

Citation Formats

Masserey, B, and Mazza, E. Characterization of Surface Cracks Using Rayleigh Waves. United States: N. p., 2005. Web. doi:10.1063/1.1916757.
Masserey, B, & Mazza, E. Characterization of Surface Cracks Using Rayleigh Waves. United States. https://doi.org/10.1063/1.1916757
Masserey, B, and Mazza, E. 2005. "Characterization of Surface Cracks Using Rayleigh Waves". United States. https://doi.org/10.1063/1.1916757.
@article{osti_20655391,
title = {Characterization of Surface Cracks Using Rayleigh Waves},
author = {Masserey, B and Mazza, E},
abstractNote = {The characterization of surface cracks in steel plates using surface acoustic waves is investigated. In the experiments Rayleigh wave is generated by a standard wedge technique and the surface displacement is measured pointwise by means of a heterodyne laser interferometer. The presence of a crack in the acoustic field leads to an amplitude increase due to the scattering of the surface wave at the defect. The time-of-flight method is extended to crack depth smaller than the wavelength by correlating the time delay of the transmitted wave with the defect depth. The method is shown to provide good results for defect depths down to 0.2 mm.},
doi = {10.1063/1.1916757},
url = {https://www.osti.gov/biblio/20655391}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 760,
place = {United States},
year = {Sat Apr 09 00:00:00 EDT 2005},
month = {Sat Apr 09 00:00:00 EDT 2005}
}