Characterization of Delamination in Beams Using Flexural Wave Scattering Analysis

[+] Author and Article Information
S. I. Ishak, G. R. Liu, S. P. Lim, H. M. Shang

Department of Mechanical Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119260

J. Vib. Acoust 123(4), 421-427 (Apr 01, 2001) (7 pages) doi:10.1115/1.1387023 History: Received April 01, 2000; Revised April 01, 2001
Copyright © 2001 by ASME
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Geometry and modelling of a beam with a delamination
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Contour for the infinite beam subjected to a harmonic concentrated load for x>−ξ
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Homogeneous and particular solution of the displacement of a beam
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Calculated displacement of Beam A excited at frequency of 17.5 kHz
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Calculated displacement of beam A and B excited at frequency of 12.5 kHz
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Calculated displacement of beam B and C excited at frequency of 7.5 kHz
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Schematic drawing of experiment set-up
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Calculated and measured displacement of beam B at various frequencies
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Calculated and measured displacement of perspex beam




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