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Title: Damage detection in structures using frequency response functions ensemble with extended cosine based indicator
Authors: Zhou, Y.-L 
Qian, X 
Cao, H 
Magd, A.W
Keywords: Fracture
Frequency response
Structural analysis
Structural dynamics
Concrete spalling
Degree of freedom
Frequency response functions
Modal assurance criterion
Novelty detection
Stiffness reduction
Structural damage detection
Well performance
Damage detection
Issue Date: 2017
Citation: Zhou, Y.-L, Qian, X, Cao, H, Magd, A.W (2017). Damage detection in structures using frequency response functions ensemble with extended cosine based indicator. Journal of Physics: Conference Series 843 (1) : 12021. ScholarBank@NUS Repository.
Rights: Attribution 4.0 International
Abstract: Although extensive investigations exist for structural damage detection, which often solely considers the stiffness reduction, or specific damage type like concrete spalling, this study aims to address a general novelty detection procedure for detecting the novelty, or so-called outlier from structural dynamic analysis with applying cosine based indicator in frequency response functions. This study also addresses a short review for the cosine indicator and modal assurance criterion, and their interrelation as well. The eight degree-of-freedom system is considered for the verification, and proves well performance in novelty detection. @ Published under licence by IOP Publishing Ltd.
Source Title: Journal of Physics: Conference Series
ISSN: 17426588
DOI: 10.1088/1742-6596/843/1/012021
Rights: Attribution 4.0 International
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