Piezoelectric-actuator excited-wave field solutions for guided-wave structural health monitoring

Ajay Raghavan; Carlos E.S. Cesnik

doi:10.1117/12.600817

17 May 2005 Piezoelectric-actuator excited-wave field solutions for guided-wave structural health monitoring

Ajay Raghavan, Carlos E.S. Cesnik

Proceedings Volume 5765, Smart Structures and Materials 2005: Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems; (2005) https://doi.org/10.1117/12.600817
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2005, San Diego, California, United States

Abstract

This work addresses the 3-D elasticity modeling of the guided wave (GW) fields excited by piezoelectric actuators in various configurations for isotropic structures. First, a general derivation for the GW field excited by an arbitrary shape, finite dimension, and surface-bonded piezo actuator in isotropic plates is presented. This is then used to generate solutions for the specific cases of ring-shaped and rectangular piezo actuators and rectangular Macro Fiber Composite actuators. An expression for the response of a piezo-sensor in a GW field is developed. Experimental verification supporting the model is provided. Excellent correlation is found between theoretical and experimental results.

Citation Download Citation

Ajay Raghavan and Carlos E.S. Cesnik "Piezoelectric-actuator excited-wave field solutions for guided-wave structural health monitoring", Proc. SPIE 5765, Smart Structures and Materials 2005: Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems, (17 May 2005); https://doi.org/10.1117/12.600817

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