MyJournals Home  

RSS FeedsSensors, Vol. 19, Pages 5070: Effect of Adhesive Debonding on the Performance of Piezoelectric Sensors in Structural Health Monitoring Systems (Sensors)

 
 

20 november 2019 20:03:59

 
Sensors, Vol. 19, Pages 5070: Effect of Adhesive Debonding on the Performance of Piezoelectric Sensors in Structural Health Monitoring Systems (Sensors)
 




Piezoelectric (PZT) ceramic elements are often subjected to complex loads during in- service lifetime in structural health monitoring (SHM) systems, and debonding of both excitation actuators and receiving sensors have a negative effect on the monitoring signals. A first systematic investigation of debonding behaviors by considering actuators and sensors simultaneously was performed in this paper. The debonding areas of actuators were set in different percentage range from 0% to 70%, and sensors in 0%, 20%, 40% and 60%. The signal-based monitoring method was used to extract the characteristic parameters of both the amplitudes and phases of received signals. Experimental results revealed that as the debonding areas of the actuators increase, the normalized amplitude appears a quick decrease before 35% debonding area of actuators and then a slow rise until 60% of debonding reached. This may be explained that the 35% debonding turning point correspond to the coincidence of the excitation frequencies of peripheral actuators with the inherent frequency of the central piezoelectric sensor, and the 60% be the result of the maximum ability of piezoelectric sensor. The degrees of debonding of actuators and sensors also have significant influence on the phase angle offset, with large debonding of actuators increases the phase offset sharply. The research work may provide useful information for practical monitoring of SHM systems.


Del.icio.us Digg Facebook Google StumbleUpon Twitter
 
41 viewsCategory: Chemistry, Physics
 
Sensors, Vol. 19, Pages 5071: Zero-Error Coding via Classical and Quantum Channels in Sensor Networks (Sensors)
Sensors, Vol. 19, Pages 5069: Coherent Optical Transduction of Suspended Microcapillary Resonators for Multi-Parameter Sensing Applications (Sensors)
 
 
blog comments powered by Disqus


MyJournals.org
The latest issues of all your favorite science journals on one page

Username:
Password:

Register | Retrieve

Search:

Physics

Use these buttons to bookmark us:
Del.icio.us Digg Facebook Google StumbleUpon Twitter


Valid HTML 4.01 Transitional
Copyright © 2008 - 2019 Indigonet Services B.V.. Contact: Tim Hulsen. Read here our privacy notice.
Other websites of Indigonet Services B.V.: Nieuws Vacatures News Tweets Travel Photos Nachrichten Indigonet Finances Leer Mandarijn