Results 21 to 30 of about 440 (132)
Piezoelectric Electro-Mechanical Impedance (EMI) Based Structural Crack Monitoring
Applied Sciences, 2020 To detect small cracks in plate like structures, the high frequency characteristics of local dynamics were studied with the piezoelectric electro-mechanical impedance (EMI) method, and damages were monitored by the changes of the EMI.
Tao Wang +4 more
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Buildings, 2021 This study proposes a cost-effective prestress monitoring method for post-tensioned reinforced concrete (RC) beams using a smart strand. Firstly, the concept of a piezoelectric-based smart strand and its implementation for prestress force monitoring are ...
Thanh-Cao Le +4 more
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Smart Materials and Structures, 2021 Abstract Electro-mechanical impedance (EMI) has been proved as an effective non-destructive evaluation indicator in monitoring the looseness of bolted joints. Yet due to the complex electro-mechanical coupling mechanism, EMI-based methods in most cases are considered as qualitative approaches and are only applicable for single-bolt ...
Lu Zhou +3 more
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Sensors, 2021 This paper proposes the use of a 1-dimensional (1-D) electromechanical impedance model to extract proper design guidelines when selecting patch-size and frequency range for corrosion detection in reinforced concrete structures using the electromechanical
Jaamac Hassan Hire +2 more
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IEEE Access, 2018 Bolted joint are among the key components that enable the robust assembly of a wide variety of structures. However, due to wear and tear over time, bolted joint may loosen, and if not detected in its early stages, can lead to devastating results.
Furui Wang +3 more
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Sensors, 2014 The electromechanical impedance (EMI) technique is considered to be one of the most promising methods for developing structural health monitoring (SHM) systems.
Fabricio G. Baptista +3 more
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Complexity, 2021 The functionality of piezoelectric devices is of significant importance in the electromechanical impedance (EMI)-based structural health monitoring (SHM) and damage detection.
Ba-Phu Nguyen +4 more
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Structural Health Monitoring Using High-Frequency Electromechanical Impedance Signatures
Advances in Civil Engineering, 2010 An overview of recent advances in electromechanical impedance- (EMI-) based structural health monitoring is presented in this paper. The basic principle of the EMI method is to use high-frequency excitation to sense the local area of a structure. Changes
Wei Yan, W. Q. Chen
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A PZT-Based Electromechanical Impedance Method for Monitoring the Soil Freeze–Thaw Process
Sensors, 2019 It is important to conduct research on the soil freeze–thaw process because concurrent adverse effects always occur during this process and can cause serious damage to engineering structures.
Jicheng Zhang +3 more
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The Scientific World Journal, 2014 This study developed an integrated global-local approach for locating damage on building structures. A damage detection approach with a novel embedded frequency response function damage index (NEFDI) was proposed and embedded in the Imote2.NET-based ...
Tzu-Hsuan Lin +2 more
doaj +1 more source