KEM 2009 DOI: 10.4028/www.scientific.net/kem.413-414.683 View full text
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Rolf T. Schulte, Ke Jia Xing, Claus Peter Fritzen

Abstract: In recent years many SHM approaches based on elastic waves that are generated and sensed by surface-bonded piezoelectric patches have been developed. Some of those utilize wave propagation phenomena; others use changes in the electromechanical impedance to detect structural damage. The capability of most approaches strongly depends on adequate choice of SHM system parameters like excitation signals and actuator/sensor types and positions. For this reason there is a growing interest in efficient and accurate si…

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