A robust Bayesian methodology for damage localization in plate-like structures using ultrasonic guided-waves
Cantero-Chinchilla, Sergio and Chiachío, Juan and Chiachío, Manuel and Chronopoulos, Dimitrios and Jones, Arthur (2019) A robust Bayesian methodology for damage localization in plate-like structures using ultrasonic guided-waves. Mechanical Systems and Signal Processing, 122. pp. 192-205. ISSN 0888-3270 (https://doi.org/10.1016/j.ymssp.2018.12.021)
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Abstract
SHM methods for damage detection and localization in plate-like structures have typically relied on signal post-processing techniques applied to ultrasonic guided-waves. The time of flight is one of these signals features which has been extensively used by the SHM community for damage localization. One approach for obtaining the time of flight is by applying a particular time-frequency transform to capture the frequency and energy content of the wave at each instant of time. To this end, the selection of a suitable methodology for time-frequency transform among the many candidates available in the literature has typically relied on experience, or simply based on considerations about computational efficiency. In this paper, a full probabilistic method based on the Bayesian inverse problem is proposed to rigorously provide a robust estimate of the time of flight for each sensor independently. Then, the robust prediction is introduced as an input to the Bayesian inverse problem of damage localization. The results reveal that the proposed methodology is able to efficiently reconstruct the damage localization within a metallic plate without the need to assume a specific a priori time-frequency transform model.
ORCID iDs
Cantero-Chinchilla, Sergio, Chiachío, Juan ORCID: https://orcid.org/0000-0003-1243-8694, Chiachío, Manuel, Chronopoulos, Dimitrios and Jones, Arthur;-
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Item type: Article ID code: 66820 Dates: DateEvent1 May 2019Published21 December 2018Published Online10 December 2018AcceptedSubjects: Naval Science > Naval architecture. Shipbuilding. Marine engineering Department: Faculty of Engineering > Naval Architecture, Ocean & Marine Engineering Depositing user: Pure Administrator Date deposited: 05 Feb 2019 11:50 Last modified: 29 Oct 2024 10:24 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/66820