Temperature effect modelling of piezoceramic transducers used for Lamb wave propagation in damage detection applications

P. Kijanka; P. Packo; W. J. Staszewski; T. Uhl

doi:10.1117/12.2009645

17 April 2013 Temperature effect modelling of piezoceramic transducers used for Lamb wave propagation in damage detection applications

P. Kijanka, P. Packo, W. J. Staszewski, T. Uhl

Author Affiliations +

Proceedings Volume 8695, Health Monitoring of Structural and Biological Systems 2013; 86952C (2013) https://doi.org/10.1117/12.2009645
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2013, San Diego, California, United States

Abstract

Although damage detection using Lamb waves has been investigated for many years, real engineering applications are limited due to practical aspects related to implementation. Temperature effect is one of the major problems. It is well known that temperature variations influence Lamb wave propagation response parameters. In practice it is important to compensate for this effect. Experimental tests are often required to understand how temperature influences wave propagation. Numerical simulation can ease this task preventing many time-consuming experiments. Simulated Lamb wave responses can be used to develop new methods for temperature compensation. The effect of temperature variations on piezoceramic transducer responses is investigated using finite element modelling. The model takes into account temperature-dependent physical properties of low-profile PZT transducers and transducer bonding layers. The model is used to predict the S₀ and A₀ Lamb response in aluminium plate for the temperature range from -60 to +40°C. The study shows relevant changes in Lamb wave amplitude response caused by temperature fluctuations. This approach can provide the basis for temperature compensation in ultrasonic guided wave damage detection systems used for structural health monitoring applications.

Citation Download Citation

P. Kijanka, P. Packo, W. J. Staszewski, and T. Uhl "Temperature effect modelling of piezoceramic transducers used for Lamb wave propagation in damage detection applications", Proc. SPIE 8695, Health Monitoring of Structural and Biological Systems 2013, 86952C (17 April 2013); https://doi.org/10.1117/12.2009645

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