On the excitability of second harmonic lamb waves in isotropic plates

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Author(s)
Mueller, Martin Fritz
Qu, Jianmin
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Wallace H. Coulter Department of Biomedical Engineering
The joint Georgia Tech and Emory department was established in 1997
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http://hdl.handle.net/1853/34532
Abstract
Recent research uses second harmonic waves caused by material nonlinearity to characterize fatigue damage in its early stages. This research investigates this second harmonic Lamb wave generation analytically, using a solution derived by De Lima, in order to provide information on the efficient generation and detection of a second harmonic amplitude for improved signal-to-noise ratio in measurements. Symmetry properties of the second harmonic wave are also clarified, since the published literature is contradictory.
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2010-02-22
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