On-Line Corrosion Monitoring of Plate Structures Based on Guided Wave Tomography Using Piezoelectric Sensors
Corrosion is a major safety and economic concern to various industries. In this paper, a novel ultrasonic guided wave tomography (GWT) system based on self-designed piezoelectric sensors is presented for on-line corrosion monitoring of large plate-like structures. Accurate thickness reconstruction o...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2018
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| Online Access: | https://hdl.handle.net/10356/87497 http://hdl.handle.net/10220/44446 |
| _version_ | 1811680331062837248 |
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| author | Rao, Jing Ratassepp, Madis Lisevych, Danylo Hamzah Caffoor, Mahadhir Fan, Zheng |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Rao, Jing Ratassepp, Madis Lisevych, Danylo Hamzah Caffoor, Mahadhir Fan, Zheng |
| author_sort | Rao, Jing |
| collection | NTU |
| description | Corrosion is a major safety and economic concern to various industries. In this paper, a novel ultrasonic guided wave tomography (GWT) system based on self-designed piezoelectric sensors is presented for on-line corrosion monitoring of large plate-like structures. Accurate thickness reconstruction of corrosion damages is achieved by using the dispersive regimes of selected guided waves and a reconstruction algorithm based on full waveform inversion (FWI). The system makes use of an array of miniaturised piezoelectric transducers that are capable of exciting and receiving highly dispersive A0 Lamb wave mode at low frequencies. The scattering from transducer array has been found to have a small effect on the thickness reconstruction. The efficiency and the accuracy of the new system have been demonstrated through continuous forced corrosion experiments. The FWI reconstructed thicknesses show good agreement with analytical predictions obtained by Faraday’s law and laser measurements, and more importantly, the thickness images closely resemble the actual corrosion sites. |
| first_indexed | 2024-10-01T03:23:21Z |
| format | Journal Article |
| id | ntu-10356/87497 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:23:21Z |
| publishDate | 2018 |
| record_format | dspace |
| spelling | ntu-10356/874972023-03-04T17:16:15Z On-Line Corrosion Monitoring of Plate Structures Based on Guided Wave Tomography Using Piezoelectric Sensors Rao, Jing Ratassepp, Madis Lisevych, Danylo Hamzah Caffoor, Mahadhir Fan, Zheng School of Mechanical and Aerospace Engineering Corrosion Monitoring Guided Wave Tomography Corrosion is a major safety and economic concern to various industries. In this paper, a novel ultrasonic guided wave tomography (GWT) system based on self-designed piezoelectric sensors is presented for on-line corrosion monitoring of large plate-like structures. Accurate thickness reconstruction of corrosion damages is achieved by using the dispersive regimes of selected guided waves and a reconstruction algorithm based on full waveform inversion (FWI). The system makes use of an array of miniaturised piezoelectric transducers that are capable of exciting and receiving highly dispersive A0 Lamb wave mode at low frequencies. The scattering from transducer array has been found to have a small effect on the thickness reconstruction. The efficiency and the accuracy of the new system have been demonstrated through continuous forced corrosion experiments. The FWI reconstructed thicknesses show good agreement with analytical predictions obtained by Faraday’s law and laser measurements, and more importantly, the thickness images closely resemble the actual corrosion sites. NRF (Natl Research Foundation, S’pore) Published version 2018-02-22T08:41:41Z 2019-12-06T16:43:09Z 2018-02-22T08:41:41Z 2019-12-06T16:43:09Z 2017 Journal Article Rao, J., Ratassepp, M., Lisevych, D., Hamzah Caffoor, M., & Fan, Z. (2017). On-Line Corrosion Monitoring of Plate Structures Based on Guided Wave Tomography Using Piezoelectric Sensors. Sensors, 17(12), 2882-. https://hdl.handle.net/10356/87497 http://hdl.handle.net/10220/44446 10.3390/s17122882 en Sensors © 2017 by The Author(s). Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). 14 p. application/pdf |
| spellingShingle | Corrosion Monitoring Guided Wave Tomography Rao, Jing Ratassepp, Madis Lisevych, Danylo Hamzah Caffoor, Mahadhir Fan, Zheng On-Line Corrosion Monitoring of Plate Structures Based on Guided Wave Tomography Using Piezoelectric Sensors |
| title | On-Line Corrosion Monitoring of Plate Structures Based on Guided Wave Tomography Using Piezoelectric Sensors |
| title_full | On-Line Corrosion Monitoring of Plate Structures Based on Guided Wave Tomography Using Piezoelectric Sensors |
| title_fullStr | On-Line Corrosion Monitoring of Plate Structures Based on Guided Wave Tomography Using Piezoelectric Sensors |
| title_full_unstemmed | On-Line Corrosion Monitoring of Plate Structures Based on Guided Wave Tomography Using Piezoelectric Sensors |
| title_short | On-Line Corrosion Monitoring of Plate Structures Based on Guided Wave Tomography Using Piezoelectric Sensors |
| title_sort | on line corrosion monitoring of plate structures based on guided wave tomography using piezoelectric sensors |
| topic | Corrosion Monitoring Guided Wave Tomography |
| url | https://hdl.handle.net/10356/87497 http://hdl.handle.net/10220/44446 |
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