Sensitivity of Piezoelectric-Based Smart Interfaces to Structural Damage in Bolted Connections
1
Faculty of Civil Engineering, Duy Tan University, 03 Quang Trung, Hai Chau, Danang 550000, Vietnam
2
Center for Construction, Mechanics and Materials, Institute of Research and Development, Duy Tan University, 03 Quang Trung, Hai Chau, Danang 550000, Vietnam
3
Faculty of Civil Engineering, Ho Chi Minh City University of Technology, VNU-HCM, 268 Ly Thuong Kiet, District 10, Ho Chi Minh City 700000, Vietnam
4
Ocean Engineering Department, Pukyong National University, 45 Yongso-ro, Daeyeon 3-dong, Namgu, Busan 48513, Korea
*
Author to whom correspondence should be addressed.
Sensors 2019, 19(17), 3670; https://doi.org/10.3390/s19173670
Received: 25 June 2019
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Revised: 31 July 2019
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Accepted: 21 August 2019
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Published: 23 August 2019
(This article belongs to the Section Physical Sensors)
This study presents a set of experimental and numerical investigations to study the sensitivity of the piezoelectric-based smart interface device to structural damage in a bolted connection. The study aims to identify the proper geometric sizes of smart interfaces for damage detection tasks. First, the fundamentals of the damage monitoring technique via lead zirconate titanate (PZT) interface is briefly described for a bolted connection. Second, a lab-scaled girder connection is selected as the test structure for the experimental investigation. PZT interface prototypes with varying geometric sizes are designed for the test connection. Under the bolt-loosening inflicted in the connection, the impedance responses of the PZT interfaces are analyzed to understand the effect of geometric parameters on the damage sensitivity of the impedance responses. Subsequently, the bolt-loosening detection capabilities of the PZT interfaces are comparatively evaluated for identifying the proper geometric sizes of the devices. Finally, a finite element model of the PZT interface-bolted connection system is established for the numerical investigation. The damage sensitivity of the numerical impedance responses is compared with the experimental results for the verification.
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Keywords:
lead zirconate titanate (PZT); piezoelectric interface; piezoelectric sensors; sensitivity; impedance method; damage detection; impedance responses; geometric effect; bolted connection; loosened bolt
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MDPI and ACS Style
Huynh, T.-C.; Ho, D.-D.; Dang, N.-L.; Kim, J.-T. Sensitivity of Piezoelectric-Based Smart Interfaces to Structural Damage in Bolted Connections. Sensors 2019, 19, 3670. https://doi.org/10.3390/s19173670
AMA Style
Huynh T-C, Ho D-D, Dang N-L, Kim J-T. Sensitivity of Piezoelectric-Based Smart Interfaces to Structural Damage in Bolted Connections. Sensors. 2019; 19(17):3670. https://doi.org/10.3390/s19173670
Chicago/Turabian StyleHuynh, Thanh-Canh, Duc-Duy Ho, Ngoc-Loi Dang, and Jeong-Tae Kim. 2019. "Sensitivity of Piezoelectric-Based Smart Interfaces to Structural Damage in Bolted Connections" Sensors 19, no. 17: 3670. https://doi.org/10.3390/s19173670
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