中文版 | English
Title

Structural fatigue crack localisation based on spatially distributed entropy and wavelet transform

Author
Corresponding AuthorWu,Nan
Publication Years
2022-09-01
DOI
Source Title
ISSN
0141-0296
EISSN
1873-7323
Volume266
Abstract
Fatigue cracks are inevitable in the service life of engineering structures and can cause unexpected severe structural failures if left unattended. During structural vibrations, fatigue cracks, specifically at the initial stage, exhibit a repetitive open-close breathing-like phenomenon. Breathing cracks cause irregularities, bi-linearity, or perturbations in the vibration responses at different locations in engineering structures. Entropy can be used to quantify the different irregularities or bi-linearity induced by breathing phenomenon. This paper presents a new breathing crack localisation method based on a spatially distributed wavelet entropy approach. A numerical analysis was conducted to validate the proposed method and illustrate the fundamentals of the proposed methodology by analysing the localisation of breathing cracks at different locations in a beam structure. Furthermore, the vibration responses of the beam with predefined breathing cracks were analysed using spatial wavelet entropy in a laboratory setup to further prove the feasibility of the proposed method. It was concluded that the proposed spatial wavelet entropy approach can be effectively used for breathing crack localisation in engineering structures.
Keywords
URL[Source Record]
Indexed By
SCI ; EI
Language
English
SUSTech Authorship
Others
WOS Research Area
Engineering
WOS Subject
Engineering, Civil
WOS Accession No
WOS:000827392100004
Publisher
EI Accession Number
20222612293445
EI Keywords
Failure (mechanical) ; Fatigue crack propagation ; Numerical methods ; Spatial distribution ; Structural dynamics ; Structural health monitoring ; Vibration analysis ; Wavelet transforms
ESI Classification Code
Surveying:405.3 ; Structural Design:408 ; Strength of Building Materials; Test Equipment and Methods:422 ; Thermodynamics:641.1 ; Engineering Graphics:902.1 ; Mathematics:921 ; Mathematical Transformations:921.3 ; Numerical Methods:921.6
ESI Research Field
ENGINEERING
Scopus EID
2-s2.0-85132860249
Data Source
Web of Science
Citation statistics
Cited Times [WOS]:0
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/352468
DepartmentDepartment of Mechanics and Aerospace Engineering
Affiliation
1.Department of Civil,Geological and Mining Engineering,Polytechnique Montréal,Montréal,Canada
2.Department of Mechanical Engineering,University of Manitoba,Winnipeg,Canada
3.Department of Civil and Environmental Engineering,Shantou University,Shantou,China
4.Department of Mechanics and Aerospace Engineering,Southern University of Science and Technology,Shenzhen,China
Recommended Citation
GB/T 7714
Cui,Shihao,Maghoul,Pooneh,Liang,Xihui,et al. Structural fatigue crack localisation based on spatially distributed entropy and wavelet transform[J]. ENGINEERING STRUCTURES,2022,266.
APA
Cui,Shihao,Maghoul,Pooneh,Liang,Xihui,Wu,Nan,&Wang,Quan.(2022).Structural fatigue crack localisation based on spatially distributed entropy and wavelet transform.ENGINEERING STRUCTURES,266.
MLA
Cui,Shihao,et al."Structural fatigue crack localisation based on spatially distributed entropy and wavelet transform".ENGINEERING STRUCTURES 266(2022).
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