The Effect of Lamb Wave Interaction with Fatigue Crack in Thin Al Sheet

Advances in Fracture and Damage Mechanics X: Selected Papers from the 10th International Conference on Fracture and Damage Mechanics (FDM 2011) 2011
Vitālijs Pavelko, Igors Pavelko, Ēriks Ozoliņš

The phenomenon of the Lamb wave interaction with fatigue crack in Al2024-T3 sheet was investigated at cyclic loading. Mentioned effect is associated with the crack open/close that change acoustic impedance of a crack. Analytical simulation of fatigue crack opening using the generalized Dugdale’s model of a crack in thin plate shows good accordance between the intensity of ultrasonic signal and a crack opening.

Keywords
Lamb wave, fatigue crack, interaction
DOI
10.4028/www.scientific.net/KEM.488-489.65
Hyperlink
http://www.scientific.net/KEM.488-489.65

Pavelko, V., Pavelko, I., Ozoliņš, Ē. The Effect of Lamb Wave Interaction with Fatigue Crack in Thin Al Sheet. In: Advances in Fracture and Damage Mechanics X: Selected Papers from the 10th International Conference on Fracture and Damage Mechanics (FDM 2011), Croatia, Dubrovnik, 19-21 September, 2011. Durnten-Zürich: Trans Tech Publications, 2011, pp.66-68. ISBN 978-3-03785-218-7. e-ISBN 978-3-03813-676-7. ISSN 1013-9826. e-ISSN 1662-9795. Available from: doi:10.4028/www.scientific.net/KEM.488-489.65

Publication language
English (en)