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Proceedings Paper

Characterization of Lamb wave attenuation mechanisms
Author(s): Daniel Schmidt; Hossein Sadri; Artur Szewieczek; Michael Sinapius; Peter Wierach; Ingo Siegert; Andreas Wendemuth
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Paper Abstract

Structural Health Monitoring (SHM) based on Lamb waves, a type of ultrasonic guided waves, is a promising technique for in-service inspection of composite structures. This study investigates the attenuation mechanisms of Lamb wave propagation fields. The attenuation of an anisotropic plate is experimental measured with air-coupled ultrasonic scanning techniques and analytical modeled using higher order plate theory. Based on the experimental and analytical data the various attenuation mechanisms are characterized for the fundamental Lamb wave modes.

Paper Details

Date Published: 17 April 2013
PDF: 8 pages
Proc. SPIE 8695, Health Monitoring of Structural and Biological Systems 2013, 869503 (17 April 2013); doi: 10.1117/12.2009594
Show Author Affiliations
Daniel Schmidt, German Aerospace Ctr. (DLR) (Germany)
Hossein Sadri, German Aerospace Ctr. (DLR) (Germany)
Artur Szewieczek, German Aerospace Ctr. (DLR) (Germany)
Michael Sinapius, German Aerospace Ctr. (DLR) (Germany)
Peter Wierach, German Aerospace Ctr. (DLR) (Germany)
Ingo Siegert, Otto-von-Guericke-Univ. Magdeburg (Germany)
Andreas Wendemuth, Otto-von-Guericke-Univ. Magdeburg (Germany)

Published in SPIE Proceedings Vol. 8695:
Health Monitoring of Structural and Biological Systems 2013
Tribikram Kundu, Editor(s)

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