Title :
The measurements and prediction of Lamb wave interaction with defects
Author :
Alleyne, David N. ; Cawley, Peter
Author_Institution :
Dept. of Mech. Eng., Imperial Coll., London, UK
Abstract :
The interaction of Lamb waves with crack-like defects in steel plates is investigated both numerically and experimentally. Excellent agreement between the predicted and measured transmission ratios is obtained, and it is shown that Lamb waves may be used to detect defects when the ratio of wavelength to defect depth is as high as 40
Keywords :
crack detection; steel; surface acoustic waves; ultrasonic materials testing; Lamb wave interaction; US NDT; crack-like defects; defect detection; steel plates; transmission ratios; Displacement measurement; Frequency measurement; History; Monitoring; Testing; Thickness measurement; Time measurement; Transducers; Transmitters; Velocity measurement;
Conference_Titel :
Ultrasonics Symposium, 1991. Proceedings., IEEE 1991
Conference_Location :
Orlando, FL
DOI :
10.1109/ULTSYM.1991.234071
