Anisotropic piezocomposite transducers (APTs), such as macro fiber composites and active fiber composites, have great potential to be used as structurally integrated transducers for guided-wave (GW) structural health monitoring. Their main advantages over conventional monolithic piezoceramic wafer transducers are mechanical flexibility, curved surface conformability, power efficiency, their ability to excite focused GW fields, and their unidirectional sensing capability as a GW sensor. In this paper, models are developed to describe excitation of GW fields by APTs in isotropic structures. The configurations explored are plane Lamb-wave fields in beams with rectangular cross-section, axisymmetric GW fields in cylinders, and 3-D GW fields in plates. The dynamics of the substrate and transducer are assumed uncoupled. The actuator is modeled as causing shear traction at the edges of the actuator’s active area along the fiber direction. The sensor is modeled as sensing the average extensional strain over the active area along the fiber direction. The work is unique in that the formulation is based on 3-D elasticity, and no reduced-order structural assumptions are used. This is crucial to model multimodal GW propagation, especially at high frequencies. A formulation is also proposed to model the behavior of APTs as GW sensors. Finally, results from experimental tests to examine the validity of the models are discussed and the possible sources of error are examined in detail.
Skip Nav Destination
e-mail: cesnik@umich.edu
Article navigation
December 2007
Technical Papers
3-D Elasticity-Based Modeling of Anisotropic Piezocomposite Transducers for Guided Wave Structural Health Monitoring
Ajay Raghavan,
Ajay Raghavan
Graduate Research Assistant
Department of Aerospace Engineering,
University of Michigan
, Ann Arbor, MI 48109-2140
Search for other works by this author on:
Carlos E. S. Cesnik
Carlos E. S. Cesnik
Associate Professor
Associate Fellow, AIAA
Department of Aerospace Engineering,
e-mail: cesnik@umich.edu
University of Michigan
, Ann Arbor, MI 48109-2140
Search for other works by this author on:
Ajay Raghavan
Graduate Research Assistant
Department of Aerospace Engineering,
University of Michigan
, Ann Arbor, MI 48109-2140
Carlos E. S. Cesnik
Associate Professor
Associate Fellow, AIAA
Department of Aerospace Engineering,
University of Michigan
, Ann Arbor, MI 48109-2140e-mail: cesnik@umich.edu
J. Vib. Acoust. Dec 2007, 129(6): 739-751 (13 pages)
Published Online: February 8, 2007
Article history
Received:
May 16, 2006
Revised:
February 8, 2007
Citation
Raghavan, A., and Cesnik, C. E. S. (February 8, 2007). "3-D Elasticity-Based Modeling of Anisotropic Piezocomposite Transducers for Guided Wave Structural Health Monitoring." ASME. J. Vib. Acoust. December 2007; 129(6): 739–751. https://doi.org/10.1115/1.2748776
Download citation file:
Get Email Alerts
Related Articles
A Hybrid Actuator Model for Efficient Guided Wave-Based Structural Health Monitoring Simulations
ASME J Nondestructive Evaluation (November,2024)
Analytical and Experimental Characterization of Macro-Fiber Composite Actuated Thin Clamped-Free Unimorph Benders
J. Vib. Acoust (October,2010)
Small-Amplitude Free-Vibration Analysis of Piezoelectric Composite Plates Subject to Large Deflections and Initial Stresses
J. Vib. Acoust (February,2006)
Structural Health Monitoring of Glass/Epoxy Composite Plates Using PZT and PMN-PT Transducers
J. Eng. Mater. Technol (January,2011)
Related Proceedings Papers
Related Chapters
Layer Arrangement Impact on the Electromechanical Performance of a Five-Layer Multifunctional Smart Sandwich Plate
Advanced Multifunctional Lightweight Aerostructures: Design, Development, and Implementation
Key Technology of Interactive Music Game Installation based on Arduino
International Conference on Control Engineering and Mechanical Design (CEMD 2017)
Research on Strengthening Mechanism of Plant Root in Slope Protection
Geological Engineering: Proceedings of the 1 st International Conference (ICGE 2007)