Transfer Functions to Remove the Effect of Corners on Rayleigh Waves
Publication: Journal of Engineering Mechanics
Volume 125, Issue 1
Abstract
This research uses laser ultrasonic techniques to develop transfer functions that remove the effect of geometric features on experimentally measured Rayleigh waves. These transfer functions are developed using a repeatable, broadband optical source and a high-fidelity sensor, a dual probe, laser interferometer. The transfer functions are developed by comparing the frequency changes between incident and transmitted Rayleigh waves that interact with a prescribed corner. These transfer functions are used to operate on different signals (waves) that contain the effect of both the corner and a defect, to remove the effect of the corner and isolate the contribution of the defect. The accuracy of these transfer functions is demonstrated and the robustness of the proposed technique is established.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 125 • Issue 1 • January 1999
Pages: 111 - 117
History
Received: Feb 18, 1998
Published online: Jan 1, 1999
Published in print: Jan 1999
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