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Title: Output-based structural damage detection by using correlation analysis together with transmissibility
Authors: Zhou, Y.-L 
Cao, H 
Liu, Q
Wahab, M.A
Keywords: Benchmarking
Correlation methods
Dynamic analysis
Structural analysis
Structural health monitoring
American Society of Civil Engineers
Correlation analysis
Damage-detection strategy
Discrimination criteria
Excitation measurements
Structural damage detection
Structural health monitoring systems
Damage detection
Issue Date: 2017
Publisher: MDPI AG
Citation: Zhou, Y.-L, Cao, H, Liu, Q, Wahab, M.A (2017). Output-based structural damage detection by using correlation analysis together with transmissibility. Materials 10 (8) : 866. ScholarBank@NUS Repository.
Rights: Attribution 4.0 International
Abstract: Output-based structural damage detection is becoming increasingly appealing due to its potential in real engineering applications without any restriction regarding excitation measurements. A new transmissibility-based damage detection approach is presented in this study by combining transmissibility with correlation analysis in order to strengthen its performance in discriminating damaged from undamaged scenarios. From this perspective, damage detection strategies are hereafter established by constructing damage-sensitive indicators from a derived transmissibility. A cantilever beam is numerically analyzed to verify the feasibility of the proposed damage detection procedure, and an ASCE (American Society of Civil Engineers) benchmark is henceforth used in the validation for its application in engineering structures. The results of both studies reveal a good performance of the proposed methodology in identifying damaged states from intact states. The comparison between the proposed indicator and the existing indicator also affirms its applicability in damage detection, which might be adopted in further structural health monitoring systems as a discrimination criterion. This study contributed an alternative criterion for transmissibility-based damage detection in addition to the conventional ones. © 2017 by the authors.
Source Title: Materials
ISSN: 1996-1944
DOI: 10.3390/ma10080866
Rights: Attribution 4.0 International
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