Practical Issues Related to the Application of Electromechanical Impedance-Based Method in Concrete Structural Health Monitoring

Guo, Fengqi; Zhang, Yu; Liu, Peng; Shan, Zhi

doi:10.1080/09349847.2015.1044587

Cited by 17 publications

(11 citation statements)

References 18 publications

(15 reference statements)

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“…Several researchers have discussed the practical issues of EMI in real applications in depth. 37–39 The issue regarding whether the variation of EMI signatures caused by one specified damage or other damage has also been investigated.…”

Section: Resultsmentioning

confidence: 99%

Interfacial debonding detection in fiber-reinforced polymer rebar–reinforced concrete using electro-mechanical impedance technique

Fan

et al. 2017

Structural Health Monitoring

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For reinforced concrete structures, the use of fiber-reinforced polymer rebars to replace the steel reinforcement is a topic that is receiving increasing attention, especially where corrosion is a serious issue. However, fiber-reinforced polymer rebar–reinforced concrete always carries the risk of structural failure initiated from the debonding damage that might occur at the reinforcement–concrete interface. This study employed an electro-mechanical impedance–based structural health monitoring technique by applying lead–zirconate–titanate ceramic patches to detect the debonding damage of a carbon fiber–reinforced polymer rebar reinforced concrete. In the experimental study, a carbon fiber–reinforced polymer rebar reinforced concrete specimen was fabricated and it was subjected to a pullout test to initiate the debonding damage at the reinforcement–concrete interface. The impedance and admittance signatures were measured from an impedance analyzer according to the different debonding conditions between the reinforcement and the concrete. Statistical damage metrics, root-mean-square deviation and mean absolute percentage deviation, were used to quantify the changes in impedance signatures measured at the lead–zirconate–titanate patches due to debonding conditions. The results illustrated the capability of the electro-mechanical impedance–based structural health monitoring technique for detecting the debonding damage of fiber-reinforced polymer rebar–reinforced concrete structures.

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Section: Resultsmentioning

confidence: 99%

Interfacial debonding detection in fiber-reinforced polymer rebar–reinforced concrete using electro-mechanical impedance technique

Fan

et al. 2017

Structural Health Monitoring

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“…So far, the structural health monitoring based on EMI technique is still concentrated in the laboratory research stage. Some researchers have discussed the practical issues of EMI in real applications in depth [ 51 , 52 , 53 ]. The issue regarding whether the variation of EMI signatures caused by specified damage or other damages has also been investigated.…”

Section: Discussionmentioning

confidence: 99%

Electro-Mechanical Impedance (EMI) Based Interlayer Slide Detection Using Piezoceramic Smart Aggregates—A Feasibility Study

Feng

2018

Sensors

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Interlayer slide damage is one of the main causes of landslide hazard, inflicting huge economic losses and casualties. It is urgent to accurately detect the initiation and development of the interlayer slide damage in real time. In this paper, a study on the feasibility of using the electro-mechanical impedance (EMI) technique to detect the interlayer slide damage was presented. The main purpose of this paper is to investigate the application of the EMI technique for interlayer slide detection using piezoceramic smart aggregates (SAs). In the experimental study, three small landslide specimens with a weak interlayer in the middle were fabricated. For each specimen, three piezoceramic SAs were post-embedded at specific positions, which were located above the weak interlayer inside the structure. The specimens were subjected to a compressive test to initiate an interlayer slide along the weak layer. The whole loading process was monitored with a precision impedance analyzer by measuring the admittance (reciprocal of impedance) of the SAs over time. The statistic metrics, including root mean square deviation (RMSD) and mean absolute percentage deviation (MAPD), were introduced to quantify the variations in admittance signatures due to interlayer slide damage. It was found that the admittance signatures and statistic metrics were sensitive to the interlayer slide damage. The experimental results verify the feasibility and practicality of using EMI technique to detect the interlayer slide.

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“…Environmental uncertainties, such as temperature variation, humidity, bonding condition, etc., remain the enormous challenge to the real world application of EMI techniques to civil engineering structures. The summary of the possible environmental factors have been provided by researchers (Bhalla et al, 2002; Guo et al, 2016), which focused on the previous studies for the most common and significant factors to EMI based methods, for example, the temperature effect. On the other hand, the limitations of the above-mentioned algorithms and methods provide some challenges to structural damage identification by using EMI technique.…”

Section: Practical Issuesmentioning

confidence: 99%

Review of piezoelectric impedance based structural health monitoring: Physics-based and data-driven methods

Fan

Hao

2021

Advances in Structural Engineering

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Vibration based structural health monitoring methods are usually dependent on the first several orders of modal information, such as natural frequencies, mode shapes and the related derived features. These information are usually in a low frequency range. These global vibration characteristics may not be sufficiently sensitive to minor structural damage. The alternative non-destructive testing method using piezoelectric transducers, called as electromechanical impedance (EMI) technique, has been developed for more than two decades. Numerous studies on the EMI based structural health monitoring have been carried out based on representing impedance signatures in frequency domain by statistical indicators, which can be used for damage detection. On the other hand, damage quantification and localization remain a great challenge for EMI based methods. Physics-based EMI methods have been developed for quantifying the structural damage, by using the impedance responses and an accurate numerical model. This article provides a comprehensive review of the exciting researches and sorts out these approaches into two categories: data-driven based and physics-based EMI techniques. The merits and limitations of these methods are discussed. In addition, practical issues and research gaps for EMI based structural health monitoring methods are summarized.

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Practical Issues Related to the Application of Electromechanical Impedance-Based Method in Concrete Structural Health Monitoring

Cited by 17 publications

References 18 publications

Interfacial debonding detection in fiber-reinforced polymer rebar–reinforced concrete using electro-mechanical impedance technique

Interfacial debonding detection in fiber-reinforced polymer rebar–reinforced concrete using electro-mechanical impedance technique

Electro-Mechanical Impedance (EMI) Based Interlayer Slide Detection Using Piezoceramic Smart Aggregates—A Feasibility Study

Review of piezoelectric impedance based structural health monitoring: Physics-based and data-driven methods

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