Ray, Pabitro ; Srinivasan, Balaji ; Balasubramanian, Krishnan ; Rajagopal, Prabhu (2018) Monitoring pipe wall integrity using fiber Bragg grating-based sensing of low-frequency guided ultrasonic waves Ultrasonics, 90 . pp. 120-124. ISSN 0041-624X
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Official URL: https://doi.org/10.1016/j.ultras.2018.06.009
Related URL: http://dx.doi.org/10.1016/j.ultras.2018.06.009
Abstract
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.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 141014 |
| Deposited On: | 24 Nov 2025 05:56 |
| Last Modified: | 24 Nov 2025 05:56 |
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