Investigation of novel embedded piezoelectric ultrasonic transducers on crack and corrosion monitoring of steel bar

Liu, Peng; Hu, Yan; Chen, Ying; Geng, Bo; Xu, Dongyu

doi:10.1016/j.conbuildmat.2019.117495

Cited by 28 publications

(12 citation statements)

References 49 publications

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“…The rod damage can then be assessed by analysing the change in ultrasonic amplitude, since the amplitude of the ultrasonic wave decreases gradually with the rod damage. 172 Another example of interesting piezoelectric applications is temperature and pressure sensing. Lee et al demonstrated a temperature/pressure sensor using a composite ZnO/PVDF lm (Fig.…”

Section: Applications Of Piezoelectric Materialsmentioning

confidence: 99%

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The intrinsic piezoelectric properties of materials – a review with a focus on biological materials

2021

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Section: Applications Of Piezoelectric Materialsmentioning

confidence: 99%

“…The rod damage can then be assessed by analysing the change in ultrasonic amplitude, since the amplitude of the ultrasonic wave decreases gradually with the rod damage. 172 …”

Section: Fundamentals Of Piezoelectricitymentioning

confidence: 99%

The intrinsic piezoelectric properties of materials – a review with a focus on biological materials

2021

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“…The active method typically involves generating ultrasonic excitation on the structure, and detecting the ultrasonic waves scattered by the boundaries, obstructions, or defects [ 16 , 17 ]. With the advantages of the selected working frequency and high signal-to-noise ratio, the active ultrasonic method is capable of detecting minute defects down to submillimeter sizes and is highly versatile for different applications including identification of fine cracks, monitoring of corrosion level, measurement of structural thicknesses, and assessment of adhesive joint qualities [ 18 , 19 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

Active Ultrasonic Structural Health Monitoring Enabled by Piezoelectric Direct-Write Transducers and Edge Computing Process

Wong

Rabeek

Lai

et al. 2022

Sensors

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While the active ultrasonic method is an attractive structural health monitoring (SHM) technology, many practical issues such as weight of transducers and cables, energy consumption, reliability and cost of implementation are restraining its application. To overcome these challenges, an active ultrasonic SHM technology enabled by a direct-write transducer (DWT) array and edge computing process is proposed in this work. The operation feasibility of the monitoring function is demonstrated with Lamb wave excited and detected by a linear DWT array fabricated in situ from piezoelectric P(VDF-TrFE) polymer coating on an aluminum alloy plate with a simulated defect. The DWT array features lightweight, small profile, high conformability, and implementation scalability, whilst the edge-computing circuit dedicatedly designed for the active ultrasonic SHM is able to perform signal processing at the sensor nodes before wirelessly transmitting the data to a remote host device. The successful implementation of edge-computing processes is able to greatly decrease the amount of data to be transferred by 331 times and decrease the total energy consumption for the wireless module by 224 times. The results and analyses show that the combination of the piezoelectric DWT and edge-computing process provides a promising technical solution for realizing practical wireless active ultrasonic SHM system.

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“…Acoustic emission (AE) indirectly monitors steel bar corrosion by detecting the noise released from corrosion-induced concrete cracking (Patil et al, 2014). Piezoelectric ultrasonic transducer locates pitting corrosion by analyzing the acoustic wave packages passing through the corroded steel bar based on the propagation time, acoustic velocity and amplitude of ultrasonic waves (Liu et al, 2020). This technique was also combined with AE to monitor steel corrosion in concrete (Sharma et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Localization and monitoring of initiation and propagation of corrosion-induced mortar cracking based on OFDR distributed optical fiber sensor

Tang

Zhao

Tian

et al. 2021

Journal of Intelligent Material Systems and Structures

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Optical frequency domain reflectometry (OFDR) optical fiber is characterized to monitor corrosion-induced mortar cracking, including localization and determination of crack initiation time, crack size, and crack length. Mortar cylinders containing a steel bar were prepared and subjected to accelerated corrosion test. The change of mortar surface condition due to steel bar corrosion was recorded with an OFDR optical fiber which was attached by using epoxy resin before corrosion test. Three fiber wrap spacing were considered including 20 mm, 50 mm, and 100 mm. Visual inspection was performed after corrosion test. Calibration test was also conducted to determine the transfer coefficient of cracking. Results show non-uniform corrosion occurred on steel bar and resulted in mortar surface cracking, which was reflected by the strain peaks appeared in the OFDR fiber strain curve. OFDR optical fiber can be used to identify the time of crack initiation, localize the position of cracks, and determine the width and length of cracks. Both the sensitivity and spatial resolution of OFDR optical fiber sensor increase with a decrease of the fiber wrap spacing.

show abstract

Investigation of novel embedded piezoelectric ultrasonic transducers on crack and corrosion monitoring of steel bar

Cited by 28 publications

References 49 publications

The intrinsic piezoelectric properties of materials – a review with a focus on biological materials

The intrinsic piezoelectric properties of materials – a review with a focus on biological materials

Active Ultrasonic Structural Health Monitoring Enabled by Piezoelectric Direct-Write Transducers and Edge Computing Process

Localization and monitoring of initiation and propagation of corrosion-induced mortar cracking based on OFDR distributed optical fiber sensor

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