Monitoring pipe wall integrity using fiber Bragg grating-based sensing of low-frequency guided ultrasonic waves.

08:00 EDT 19th June 2018 | BioPortfolio

Summary of "Monitoring pipe wall integrity using fiber Bragg grating-based sensing of low-frequency guided ultrasonic waves."

Recent literature shows that low-frequency ultrasonic guided waves experience mode confinement and loss of axi-symmetry in pipes with axially uniform features such as eccentricity. Considering extended wall loss as a case of uniform eccentricity, this paper proposes to monitor pipe integrity by measuring changes to the modal structure of low-frequency axisymmetric L(0,2) longitudinal guided waves. Fiber Bragg gratings are shown to be effective in detecting changes to L(0,2) modal characteristics, providing a novel route to health monitoring of pipe assets.


Journal Details

This article was published in the following journal.

Name: Ultrasonics
ISSN: 1874-9968
Pages: 120-124


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