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Sensors 2010, 10(4), 3681-3702; doi:10.3390/s100403681

Quantitative Modeling of Coupled Piezo-Elastodynamic Behavior of Piezoelectric Actuators Bonded to an Elastic Medium for Structural Health Monitoring: A Review

1
Department of Systems Engineering, University of Arkansas at Little Rock, Little Rock, AR 72204, USA
2
Department of Applied Science, University of Arkansas at Little Rock, Little Rock, AR 72204, USA
3
Department of Mechanical Engineering, University of Alberta, Edmonton, Alberta AB T6G 2G8, Canada
*
Author to whom correspondence should be addressed.
Received: 6 January 2010 / Revised: 16 March 2010 / Accepted: 31 March 2010 / Published: 13 April 2010
(This article belongs to the Special Issue Advances in Actuators)
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Abstract

Elastic waves, especially guided waves, generated by a piezoelectric actuator/sensor network, have shown great potential for on-line health monitoring of advanced aerospace, nuclear, and automotive structures in recent decades. Piezoelectric materials can function as both actuators and sensors in these applications due to wide bandwidth, quick response and low costs. One of the most fundamental issues surrounding the effective use of piezoelectric actuators is the quantitative evaluation of the resulting elastic wave propagation by considering the coupled piezo-elastodynamic behavior between the actuator and the host medium. Accurate characterization of the local interfacial stress distribution between the actuator and the host medium is the key issue for the problem. This paper presents a review of the development of analytical, numerical and hybrid approaches for modeling of the coupled piezo-elastodynamic behavior. The resulting elastic wave propagation for structural health monitoring is also summarized.
Keywords: piezoelectric actuators; coupled piezo-elastodynamic behavior; elastic waves; structural health monitoring piezoelectric actuators; coupled piezo-elastodynamic behavior; elastic waves; structural health monitoring
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Huang, G.; Song, F.; Wang, X. Quantitative Modeling of Coupled Piezo-Elastodynamic Behavior of Piezoelectric Actuators Bonded to an Elastic Medium for Structural Health Monitoring: A Review. Sensors 2010, 10, 3681-3702.

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