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19 April 2022 On the frequencies for structural health monitoring in plates with asymmetrical damage: an analytical approach
Kayc W. Lopes, Camila G. Gonsalez-Bueno, Daniel J. Inman, Douglas D. Bueno
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Proceedings Volume 12048, Health Monitoring of Structural and Biological Systems XVI; 120480B (2022) https://doi.org/10.1117/12.2612224
Event: SPIE Smart Structures + Nondestructive Evaluation, 2022, Long Beach, California, United States
Abstract
Detecting incipient damage in structures is an important challenge for the engineering community. The design of structural health monitoring (SHM) systems usually involves strategic definition of the excitation signal, selecting the best frequencies to avoid false alarms. In this sense, the present article introduces an approach to determine the optimal frequencies for asymmetrical damage detection in plates considering perpendicular incidence of longitudinal and flexural waves incoming in the damage. Numerical simulations are carried out by considering an aluminum plate, and the results show that the approach contributes to the establishment of more efficient SHM systems.
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Kayc W. Lopes, Camila G. Gonsalez-Bueno, Daniel J. Inman, and Douglas D. Bueno "On the frequencies for structural health monitoring in plates with asymmetrical damage: an analytical approach", Proc. SPIE 12048, Health Monitoring of Structural and Biological Systems XVI, 120480B (19 April 2022); https://doi.org/10.1117/12.2612224
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KEYWORDS
Structural health monitoring
Wave propagation
Damage detection
Analytical research
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