Details

Autor(en) / Beteiligte

• Mingxi Deng
• Junfeng Pei

Titel

P1H-9 Nonlinear Ultrasonic Lamb Wave Response to Fatigue of Solid Plates

Ist Teil von

• 2006 IEEE Ultrasonics Symposium, 2006, p.1425-1428

Ort / Verlag

IEEE

Erscheinungsjahr

2006

Quelle

IEEE Xplore Digital Library

Beschreibungen/Notizen

• An approach of nonlinear ultrasonic Lamb waves is proposed to experimentally assess the fatigue damage of solid plates. The feasibility of using the nonlinear effect of Lamb wave propagation for assessing the fatigue damage of solid plates has been analyzed. After the aluminum sheets are subjected to tension-tension cyclic loading of the given cyclic number, near the driving frequency where Lamb wave propagation has a strong nonlinearity, the amplitude-frequency curves of the second harmonics of Lamb wave propagation are measured. The experimental results show that the effect of second-harmonic generation by Lamb wave propagation is rather sensitive to the state of early fatigue damage of solid plates