Detection and Localization of Multiple Damages through Entropy in Information Theory

According to recent works, entropy measures, and more specifically, spectral entropies, are emerging as an efficient method for the damage assessment of both mechanical systems and civil structures. Specifically, the occurrence of structural system alterations (intended in this work as stiffness red...

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Bibliographic Details
Published in:Applied sciences 2021-07, Vol.11 (13), p.5773
Main Authors: Ceravolo, Rosario, Civera, Marco, Lenticchia, Erica, Miraglia, Gaetano, Surace, Cecilia
Format: Article
Language:English
Subjects:
Boundary conditions
Buried pipes
Case studies
Construction
Cultural heritage
Damage assessment
Damage detection
Damage localization
damage severity assessment
Entropy
Entropy (Information theory)
Information theory
Localization
Masonry
Mechanical systems
Oil and gas industry
pipeline integrity management
Pipelines
Steel pipes
Stiffness
structural health monitoring
Wiener entropy
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Summary:According to recent works, entropy measures, and more specifically, spectral entropies, are emerging as an efficient method for the damage assessment of both mechanical systems and civil structures. Specifically, the occurrence of structural system alterations (intended in this work as stiffness reduction) can be detected as a localized change in the signal entropy. Here, the Wiener Entropy (also known as the Spectral Flatness) of strain measurements is proved as a viable tool for single and multiple damage assessment, including damage detection, localization, and severity assessment. A case study from oil & gas engineering, i.e., a finite element model of a buried steel pipeline, is utilized for this aim.
ISSN:2076-3417
2076-3417
DOI:10.3390/app11135773