Characterization of Lamb wave attenuation mechanisms

Daniel Schmidt; Hossein Sadri; Artur Szewieczek; Michael Sinapius; Peter Wierach; Ingo Siegert; Andreas Wendemuth

doi:10.1117/12.2009594

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17 April 2013 Characterization of Lamb wave attenuation mechanisms

Daniel Schmidt, Hossein Sadri, Artur Szewieczek, Michael Sinapius, Peter Wierach, Ingo Siegert, Andreas Wendemuth

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Proceedings Volume 8695, Health Monitoring of Structural and Biological Systems 2013; 869503 (2013) https://doi.org/10.1117/12.2009594
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2013, San Diego, California, United States

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.

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Daniel Schmidt, Hossein Sadri, Artur Szewieczek, Michael Sinapius, Peter Wierach, Ingo Siegert, and Andreas Wendemuth "Characterization of Lamb wave attenuation mechanisms", Proc. SPIE 8695, Health Monitoring of Structural and Biological Systems 2013, 869503 (17 April 2013); https://doi.org/10.1117/12.2009594

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