structural health monitoring and wireless damage detection with piezoelectric wafer active sensors
Gaurav Bharadwaj,Nikhil Swami,Ritu Sharma
Published in International Journal of Advanced Research in Electronics, Communication & Instrumentation Engineering and Development
ISSN: 2347 -7210 Impact Factor:1.9 Volume:2 Issue:3 Year: 26 December,2014 Pages:29-35
Abstract
In this paper we review the state of the art in an emerging new technology: embedded ultrasonic non-destructive evaluation (NDE). Embedded ultrasonic NDE permits active structural health monitoring, i.e. the on-demand interrogation of the structure to determine its current state of structural health. The enabling element of embedded ultrasonic NDE is the piezoelectric wafer active sensor (PWAS). Piezoelectric wafer active sensors (PWAS) are lightweight and inexpensive enablers for a large class of structural health monitoring (SHM) and damage detection applications. PWAS are multi-mode, i.e., they can be used for damage detection using both active and passive methods and utilizing both traveling guided waves (acousto-ultrasonics) as well as standing waves (vibration) techniques. PWAS have several applications in the areas of: (a) embedded guided-wave ultrasonics, e.g., pulse-echo and phased arrays; (b) high-frequency modal sensing, i.e., the electro-mechanical (E/M) impedance method. The paper ends with conclusions and suggestions for further work.
Kewords
Structural health monitoring; SHM; piezoelectric wafer active sensors; PWAS; electromechanical impedance; EMIS; acousto-ultrasonics; guided waves; Lam
Reference
[1] Sohn, H., Farrar, C.R., Hemez, F. M., Shunk, D. D., Stinemates, S. W., Nadler, B. R., and Czarnecki, J. J. (2004) "A Review of Structural Health Monitoring Literature form 1996-2001," Los Alamos National Laboratory report LA-13976-MS, 2004 [2] Farrar, C.R., Sohn, H., Hemez, F. M., Anderson, M.C., Bement, M. T., Cornwell, P. J., Doebling, S.W., Schultze, J. F., Lieven, N., Robertson, A. N. (2004) "Damage Prognosis: Current Status and Future Needs," Los Alamos National Laboratory Report, LA-14051-MS, 2004 [3] Rose, J. L.; Soley, L., (2000) “Ultrasonic guided waves for the detection of anomalies in aircraft components”, Materials Evaluation, Vol. 50, No. 9, pg. 1080-1086, 2000 [4] Giurgiutiu, V. (2008) Structural Health Monitoring with Piezoelectric Wafer Active Sensors, Elsevier Academic Press, 760 pages, ISBN 978-0120887606 [5] Giurgiutiu, V.; Xu, B. (2007) "Self-Processing Integrated Damage Assessment Sensor for Structural Health Monitoring (SPIDAS)", U.S. Patent Office #7,174,255 of Feb. 6, 2007 [6] Giurgiutiu, V. (2006) “In-situ structural health monitoring, diagnostics, and prognostics system utilizing thin piezoelectric sensors”¸ U.S. Patent Office #7,024,315 of April 8, 2006 [7] Giurgiutiu, V.; Bao, J.; Zagrai, A. N. (2006) “Structural health monitoring system utilizing guided Lamb waves embedded ultrasonic structural radar”¸ U.S. Patent Office #6,996,480 of February 7, 2006 [8] Olympus (2004) Introduction to Phased Array Ultrasonic Technology Applications R/D Tech part number DUMG068C, ISBN 0-9735933-4-2 J. Luo, H.-Z. Liu, R.-F. Li, L. Bao, sensor networks,” “QoS-oriented asynchronous clustering protocol in wireless
