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Smart Nondestructive Evaluation and Health Monitoring of Structural and Biological Systems II
This paper describes a Lamb-wave scanning method for the detection of notches simulating cracks at rivet holes in thin plates. The approach requires the generation of an ultrasonic S o -Mode Lamb wave using an incident transmitter excited with a tone burst centered at a near non-dispersive frequency. Area scans are performed on a plate with a hole with a notch to generate times series information which is used to create animations illustrating the wave propagation characteristics. The timedoi:10.1117/12.483969 fatcat:vgsokdkvpzdmnf2ybnk6jkusba