Ultrasonic NDE of Thick Composite Laminates
The feasibility of using relatively low frequency leaky Lamb waves (LLW) for the quantitative characterization of thick composites is discussed. A coordinated theoretical and experimental program of research has been carried out in an effort to understand the behavior of the leaky wavefield produced by thick composite laminates. Good correlation between theoretical predictions of the LLW spectra and laboratory measurements has been achieved for the specimens. The need for further research to develop a full or understanding is indicated.
KeywordsLamb Wave Multilayered Plate Homogeneous Plate Resin Pocket Thick Laminate
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