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Heterogeneous data fusion for the improved non-destructive detection of steel-reinforcement defects using echo state networks

Wootton, Adam J.; Day, Charles; Haycock, Peter W.

Heterogeneous data fusion for the improved non-destructive detection of steel-reinforcement defects using echo state networks Thumbnail


Authors

Adam J. Wootton

Peter W. Haycock



Abstract

The degradation of roads is an expensive problem: in the UK alone, £27 billion was spent on road repairs between 2013 and 2019. One potential cost-saver is the early, non-destructive detection of faults. There are many available techniques, each with its own benefits and drawbacks. This paper builds upon the successful processing of Magnetic Flux Leakage (MFL) data by Echo State Networks (ESNs) for damage diagnostics, by augmenting ESNs with the depth of concrete cover as part of a data fusion approach. This fusion-based ESN outperformed a number of non fusion ESN comparators and a previously used analytical technique. Additionally, the fusion ESN had an optimal threshold value whose standard deviation was three times smaller than that of the nearest alternative technique, potentially prompting a move towards automated defect detection in ‘real-world’ applications.

Journal Article Type Article
Acceptance Date Jan 13, 2022
Online Publication Date Mar 25, 2022
Publication Date Mar 25, 2022
Journal STRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL
Print ISSN 1475-9217
Publisher SAGE Publications
Volume 21
Issue 6
Article Number ARTN 14759217221080718
Pages 2910-2921
DOI https://doi.org/10.1177/14759217221080718
Keywords Echo state networks, non-destructive testing, magnetic flux leakage, cover depth, steel-reinforced concrete, heterogeneous data fusion, signal processing, damage detection
Publisher URL https://journals.sagepub.com/doi/10.1177/14759217221080718

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