Collaborators

• • Prof. Hyonny Kim, UCSD

  • Prof. Staszewski, AGH University of Science and Technology, Poland 

Funding:

• • Air Force Office of Scientific Research

  • Los Alamos/UCSD Educational Collaboration Program

  • Los Alamos/UCSD Cooperative Agreement in Research and Education (CARE)

Synopsis:

Permanently-attached piezoelectric transducers are being increasingly used in guided-wave SHM systems for continuous structural monitoring. We have developed models that capture the role of the transducer on the response of the guided-wave system in plate-like structures (Lamb waves) also in the presence of temperature fluctuations. These models have been applied to the case of monolithic PZT disks and that of flexible Macro-Fiber Composite (MFC) patches. The models account for transducer size/shape, piezo-mechanical properties, and shear-lag behavior at the transducer/structure interface. These studies have, for example, enabled the development of the “Piezoelectric Rosette” concept for determining the direction of arrival of an incoming wave for Acoustic Emission-type monitoring without the need for time-of-flight triangulation. Another topic has been the development of transducer-to-structure models to detect wave transduction malfunctioning.

Selected Publications:

Kijanka, P, Packo, P., Zhu, X., Staszewski, WJ., and Lanza di Scalea, F., “Three-Dimensional Temperature Effect Modelling of Piezoceramic Transducers Used for Lamb Wave Based Damage Detection,” Smart Materials and Structures, 24(6), pp. 1-10, 2015 .

Kijanka, P, Packo, P., Zhu, X., Staszewski, WJ., and Lanza di Scalea, F., “Actuation Stress Modelling of Piezoceramic Transducers Under Variable Temperature Field,” Journal of Intelligent Materials Systems and Structures, 27(3), pp. 337-349, 2016 .

Kijanka, P., Manohar, A., Lanza di Scalea, F. and Staszewski, W., “Damage Location by Ultrasonic Lamb Waves and Piezoelectric Rosettes”, Journal of Intelligent Materials Systems and Structures, 26(12), pp. 1477-1490, 2015 .

Nucera, C., White, S., Kim, H., and Lanza di Scalea, F., “Piezoelectric Rosettes For Acoustic Source Location In Composite Structures: Results From “Blunt” Impact Tests,” Structural Health Monitoring 2013 – A Roadmap to Intelligent Structures – Proceeding of the 9th Intl Workshop on Structural Health Monitoring, F-K. Chang, ed., Stanford University, pp. 2635-2642, Sept. 10-12, 2013.

Lanza di Scalea, F., Kim, H., White, S., Chen, Z., Salamone, S., and Bartoli, I., “Impact Monitoring In Aerospace Panels Via Piezoelectric Rosettes,” Composite Materials and Joining Technologies for Composites, Vol. 7, E. Patterson et al. (eds.), 7 pgs., 2012.

Salamone, S., Bartoli, I., Di Leo, P., Lanza di Scalea, F., Ajovalasit, A., D’Acquisto, L., Rhymer, J., and Kim, H., “High-velocity Impact Location on Aircraft Panels Using Macro-fiber Composite Piezoelectric Rosettes,” Journal of Intelligent Materials Systems and Structures, 21(9), pp. 887-896, 2010.

Salamone, S., Bartoli, I., Lanza di Scalea, F., and Coccia, S., “Guided-wave Health Monitoring of Aircraft Composite Panels under Changing Temperature,” Journal of Intelligent Materials Systems and Structures, Vol. 20(9), pp. 1079-1090, 2009.

Lanza di Scalea, F. and Salamone, S., “Temperature Effects in Ultrasonic Lamb Wave Structural Health Monitoring Systems,” Journal of the Acoustical Society of America, Vol. 124(1), pp. 161-174, 2008.

Lanza di Scalea, F., Matt, H. and Bartoli, I., “The Response of Rectangular Piezoelectric Sensors to Rayleigh and Lamb Ultrasonic Waves,” Journal of the Acoustical Society of America, Vol. 121(1), pp. 175-187, 2007.

Matt, H. and Lanza di Scalea, F., “Macro-fiber Composite Piezoelectric Rosettes for Acoustic Source Location in Complex Structures,” Smart Materials and Structures, Vol. 16(4), pp. 1489-1499, 2007.

Park, G., Farrar, C., Lanza di Scalea, F., and Coccia, S., “Performance Assessment and Validation of Piezoelectric Active-Sensors in Structural Health Monitoring,” Smart Materials and Structures, Vol. 15(6), pp. 1673-1683, 2006.