Fatigue crack detection using diffused lamb wave field – damage index vs. crack length estimation

• Autorzy: Staszewski Wiesław Jerzy
• Języki publikacji: EN

Abstrakty

EN

Fatigue crack detection is one of the major problems in maintenance of engineering structures. Ultrasonic guided waves are used for fatigue crack detection in metallic plate components. The application involves Lamb wave propagation and the analysis of the diffused wave field. The cross-correlation function is used to obtain a damage index that reveals the initiation of fatigue crack. The major focus of the paper is on crack length estimation. The results demonstrate that crack length estimation based on Lamb wave propagation is challenging but not impossible.

Słowa kluczowe

EN

fatigue crack detection; Lamb waves; crack length estimation

PL

wykrywanie pęknięć zmęczeniowych; fale Lamba; szacowanie długości pęknięcia

• Wydawca: Poznan University of Technology. Institute of Applied Mechanics
• Czasopismo: Vibrations in Physical Systems
• Rocznik: 2019
• Tom: Vol. 30, nr 2
• Strony: art. no. 2019212
• Opis fizyczny: Bibliogr. 12 poz., fot. kolor., wykr.

Twórcy

autor

Staszewski Wiesław Jerzy

• Department of Robotics and Mechatronics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).