@inproceedings{dc5279d54d5945b6a4193abef12987b3,
title = "Generation and detection of lamb waves to detect plasticity-induced changes in the microstructure",
abstract = "In this work ultrasonic Lamb wave are used to detect material nonlinearity. When certain conditions hold in a propagating Lamb wave, cumulative second harmonics are generated proportional to the material nonlinearity. It has been theoretically shown that the nonlinearity of a material changes with the change of the microstructure. This behavior will be experimentally verified with nonlinear Lamb wave measurements in aluminum sheets. The sheet specimens are stressed with different loads, so different levels of plastic deformation occur. The change in the material nonlinearity for each specimen is then determined with nonlinear Lamb wave measurements.",
keywords = "Lamb waves, Nonlinear ultrasonics, Plastic deformation, Spectrogram",
author = "C. Pruell and Kim, {J. Y.} and Jacobs, {L. J.} and J. Qu",
year = "2008",
doi = "10.1063/1.2902580",
language = "English",
isbn = "9780735404946",
series = "AIP Conference Proceedings",
pages = "1275--1281",
booktitle = "Review of Progress in QuantitativeNondestructive Evaluation",
note = "34th Annual Review of Progress in Quantitative Nondestructive Evaluation ; Conference date: 22-07-2007 Through 27-07-2007",
}