The Effect of Lamb Wave Interaction with Fatigue Crack in Thin Al Sheet
            Key Engineering Materials
            2012
            
        
                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. Key Engineering Materials, 2012, Vols.488-489, pp.65-68. ISSN 1662-9795. Available from: doi:10.4028/www.scientific.net/KEM.488-489.65
            
                Publication language
                English (en)