Damage detection of laminated composite beams with progressive wavelet transforms

2008 ◽  
Author(s):  
Maosen Cao ◽  
Pizhong Qiao
Keyword(s):  
Damage Detection ◽  
Wavelet Transforms ◽  
Laminated Composite ◽  
Composite Beams ◽  
Laminated Composite Beams

scholarly journals Modal Kinetic Energy Change Ratio-based Damage Assessment of Laminated Composite Beams using Noisy and Incomplete Measurements

2019 ◽  
Vol 3 (3) ◽  
pp. 452 ◽  
Author(s):  
Du Dinh-Cong ◽  
Linh Vo-Van ◽  
Dung Nguyen-Quoc ◽  
Trung Nguyen-Thoi
Keyword(s):  
Kinetic Energy ◽  
Damage Detection ◽  
Composite Beam ◽  
Structural Damage ◽  
Laminated Composite ◽  
Composite Beams ◽  
Mode Shapes ◽  
Damage Scenarios ◽  
Creative Commons ◽  
Laminated Composite Beams

Modal kinetic energy (MKE) feature has been mostly employed for optimal sensor layout strategies; nevertheless, little attention is paid to use the feature to the field of structural damage detection. The article presents the extensive applicability of MKE change ratio (MKECR), a good damage sensitive parameter, to damage localization and quantification of laminated composite beams. The formulation of the parameter is based on the closed-form of element MKE sensitivity. The performance of the offered damage detection method is numerically verified by a clamped-clamped composite beam and a two-span continuous composite beam with different hypothetical damage scenarios. The influence of incomplete mode shapes, various noise levels as well as damage magnitudes on damage prediction results are also investigated. The obtained results from these numerical examples indicate that the offered method reliably localize the actually damaged elements and approximately estimate their severities, even under incomplete measurements at a high noise level.This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium provided the original work is properly cited. 

Multiple damage detection in laminated composite beams using automated model update

Structures ◽  
2021 ◽  
Vol 34 ◽  
pp. 1665-1683
Author(s):  
Volkan Kahya ◽  
Fatih Yesevi Okur ◽  
Sebahat Karaca ◽  
Ahmet Can Altunışık ◽  
Mustafa Aslan
Keyword(s):  
Damage Detection ◽  
Laminated Composite ◽  
Composite Beams ◽  
Model Update ◽  
Laminated Composite Beams
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