Modeling and characterization of macro-fiber composite transducers for Lamb wave excitation

Manuel Collet; Massimo Ruzzene; Ken Cunefare; Buli Xu

doi:10.1117/12.847549

8 April 2010 Modeling and characterization of macro-fiber composite transducers for Lamb wave excitation

Manuel Collet, Massimo Ruzzene, Ken Cunefare, Buli Xu

Proceedings Volume 7650, Health Monitoring of Structural and Biological Systems 2010; 76501H (2010) https://doi.org/10.1117/12.847549
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2010, San Diego, California, United States

Abstract

The paper describes a numerical approach for the analysis of Lamb wave generation in plate structures. Focus is placed on the investigation of macro fiber composite (MFC) actuators and their directivity properties when actuated individually. A local Finite Element model of the electro-mechanical behavior of the actuator/substrate system estimates the distribution of the interface stresses between the actuator and the substrate, which are subsequently provided as inputs to the analytical procedure that estimates the far-field response of the plate. The proposed approach allows handling of complex actuation configurations, as well as the presence of a bonding layer. As an example, the technique is applied to estimate the directional Lamb wave generation of two types of macro fiber composite transducers. The numerical results are validated experimentally by using a Polytec PSV400 MS scanning laser doppler vibrometer. The results suggest the potentials of the approach as a tool for the prediction of the excitation provided by actuators of complex shapes.

Citation Download Citation

Manuel Collet, Massimo Ruzzene, Ken Cunefare, and Buli Xu "Modeling and characterization of macro-fiber composite transducers for Lamb wave excitation", Proc. SPIE 7650, Health Monitoring of Structural and Biological Systems 2010, 76501H (8 April 2010); https://doi.org/10.1117/12.847549

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available