Guided-wave based damage detection method for various materials using piezoelectric sensors/actuators

Mijia Yang; Pizhong Qiao; Wahyu Lestari

doi:10.1117/12.597682

19 May 2005 Guided-wave based damage detection method for various materials using piezoelectric sensors/actuators

Mijia Yang, Pizhong Qiao, Wahyu Lestari

Author Affiliations +

Proceedings Volume 5767, Nondestructive Evaluation and Health Monitoring of Aerospace Materials, Composites, and Civil Infrastructure IV; (2005) https://doi.org/10.1117/12.597682
Event: Nondestructive Evaluation for Health Monitoring and Diagnostics, 2005, San Diego, CA, United States

Abstract

In this study, the guided wave technique is applied to nondestructively assess the damage in various engineering materials, like alumina, laminated composites, and composite sandwiches. A combined theoretical, numerical and experimental investigation of the pulse-echo method using piezoelectric sensors and actuators is conducted. The dispersion effect of wave guides on these materials is first analyzed, and the transient propagation process of wave guides and its interaction with inside damages are then numerically simulated. The implementations of the pulse echo method are illustrated in experimental testing and damage detection of aluminum beams, carbon/epoxy laminated composite plates, and composite sandwich beams. In particular, the experimental results on damage detection of the composite sandwich beams are reported and discussed. As illustrated in this study, the pulse-echo method combined with piezoelectric material can be used effectively to locate damage in various engineering materials and structures.

Citation Download Citation

Mijia Yang, Pizhong Qiao, and Wahyu Lestari "Guided-wave based damage detection method for various materials using piezoelectric sensors/actuators", Proc. SPIE 5767, Nondestructive Evaluation and Health Monitoring of Aerospace Materials, Composites, and Civil Infrastructure IV, (19 May 2005); https://doi.org/10.1117/12.597682

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