Paper Info
Title
Performance Degradation Assessment of Concrete Beams Based on Acoustic Emission Burst Features and Mahalanobis-Taguchi System.
Abstract
Acoustic emission (AE) has been used extensively for structural health monitoring based on the stress waves generated due to evolution of cracks in concrete structures. A major concern while using AE features is that each of them responds differently to the fractures in concrete structures. To tackle this problem, Mahalanobis-Taguchi system (MTS) is utilized, which fuses the AE feature space to provide comprehensive and reliable degradation indicator with a feature selection method to determine useful features. Further, majority of the existing investigations gave little attention to naturally occurring cracks, which are actually more difficult to detect. In this study, a novel degradation indicator (DI) based on AE features and MTS is proposed to indicate the performance degradation in reinforced concrete beams. The experimental results confirm that the MTS can successfully distinguish between healthy and faulty conditions. To alleviate the noise from the DI obtained through MTS, a noise-removal strategy based on Chebyshev inequality is suggested. The results show that the proposed DI based on AE features and MTS is capable of detecting early stage cracks as well as development of damage in concrete beams.
Year
DOI
Venue
2020
10.3390/s20123402
SENSORS
Keywords
DocType
Volume
concrete crack detection,acoustic emission features,Mahalanobis-Taguchi system
Journal
20
Issue
ISSN
Citations 
12
1424-8220
0
PageRank 
References 
Authors
0.34
0
3
Name
Order
Citations
PageRank
Md Arafat Habib100.34
Akhand Rai200.34
Jong Myon Kim314432.36