Structural health monitoring of cylindrical structures using guided ultrasonic waves

The research field of structural health monitoring (SHM) in the realm of civil engineering has emerged rapidly. SHM concepts are based on integrated sensors and actuators to evaluate the structural state. Beside common structural response methods and other nondestructive testing techniques, wave-bas...

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Bibliographic Details
Published inActa mechanica Vol. 223; no. 8; pp. 1669 - 1680
Main Authors Gaul, Lothar, Sprenger, Helge, Schaal, Christoph, Bischoff, Stefan
Format Journal Article
LanguageEnglish
Published Vienna Springer Vienna 01.08.2012
Springer
Springer Nature B.V
Subjects
Analysis
Boundary element method
Classical and Continuum Physics
Control
Dynamical Systems
Engineering
Engineering Thermodynamics
Health monitoring (engineering)
Heat and Mass Transfer
Mathematical analysis
Reflection
Sensors
Solid Mechanics
Theoretical and Applied Mechanics
Transducers
Transmission lines
Ultrasonic testing
Ultrasonic waves
Vibration
Wave propagation
Waveguides
Structural Health Monitoring
Boundary Element Method
Ultrasonic Wave
Mode Conversion
Lamb Wave
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ISSN0001-5970
1619-6937
DOI10.1007/s00707-012-0634-z

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Summary:The research field of structural health monitoring (SHM) in the realm of civil engineering has emerged rapidly. SHM concepts are based on integrated sensors and actuators to evaluate the structural state. Beside common structural response methods and other nondestructive testing techniques, wave-based ultrasonic techniques are widely used especially because of their flexibility. Monitoring cable structures such as overhead transmission lines or stay cables in suspension bridges is one objective of those wave-based methods. These structures are subject to aging, corrosion and other static and dynamic loads (e.g., wind, temperature). The cylindrical structures act as waveguides whereby monitoring of large distances with a single ultrasonic transducer is possible. However, the wave propagation is multimodal and dispersive, which complicates analysis of the wave motion and development of monitoring applications. This work addresses several aspects of the propagation of guided waves in cylinders, especially the analysis of reflection and transmission at discontinuities using finite element and boundary element methods.
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ISSN:0001-5970
1619-6937
DOI:10.1007/s00707-012-0634-z