Smart embedded PZT sensor for in-situ elastic property and vibration measurements in concrete

Kocherla, Amarteja; Duddi, Murali; Subramaniam, Kolluru V. L.

doi:10.1016/j.measurement.2020.108629

Cited by 25 publications

(5 citation statements)

References 53 publications

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“…Using equation ( 1), the effective mechanical impedance Z s,eff = x + yj) of the host structure can be divided into its real and imaginary components, which can provide important information about the deterioration of the RC specimen because of the presence of corrosion. Several researchers have successfully implemented this wellestablished concept [37][38][39][40][41][42]. Bansal et al [58] used this technique to understand the correlation between changes in signatures and corresponding changes in non-dimensional parameters.…”

Section: Extraction Of Equivalent Structural Parametersmentioning

confidence: 99%

“…The impact of faulty bonding on the PZT patch's EMI response spectrum was studied by combining experimental and numerical methods. In addition to that to determine the validity of the vibration measurements made by the embedded sensor and to compare the experimental results with simulated results, Kocherla et al [37] numerically simulated an embedded PZT sensor capable of detecting transient dynamic motion for vibration measurement for a concrete structure. Kocherla and Subramaniam [38] conducted an experimental program to produce controlled stress level measurements to develop the damage in the concrete and simulate the same outcomes with COMSOL software.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Exploring chloride-induced corrosion in reinforced concrete structures through embedded piezo sensor technology: an experimental and numerical study

Morwal,

Bansal,

Azam

et al. 2024

Smart Mater. Struct.

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Corrosion of steel in concrete is one of the major problems with respect to the durability of reinforced concrete (RC) structures. Thus, monitoring the corrosion in real-time is essential to prevent structural damage. However, one of the main challenges is to simulate the real-time development of corrosion in the RC structure. In recent years, smart aggregates, also called embedded piezo sensors (EPS), have become increasingly popular for monitoring localized and corrosion damage in RC structures using electro-mechanical impedance (EMI). This paper presents the experimental and numerical investigation of corrosion in RC structures subjected to the chloride-laden environment using EPS via the EMI technique. To fulfill this objective, the study has been carried out in two stages such as; in the first stage, the experiments are conducted on the RC specimen, and the EMI response was obtained both in a pristine state and when accelerated corrosion progressed. In the second step, a numerical model of the RC specimen has been developed based on the experimental data in the COMSOL software, and the effect of corrosion in the form of varying mass loss percentages has been simulated. Based on the results, it is concluded that the experimental and numerical conductance signatures before and after corrosion are matched. The deterioration in terms of stiffness loss in the RC specimen was 18.20% at 30% mass loss.

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Section: Extraction Of Equivalent Structural Parametersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Exploring chloride-induced corrosion in reinforced concrete structures through embedded piezo sensor technology: an experimental and numerical study

Morwal,

Bansal,

Azam

et al. 2024

Smart Mater. Struct.

View full text Add to dashboard Cite

show abstract

“…State monitoring primarily involves the assessment of factors such as velocity, acceleration, and vibration frequency. In general, the motion states of mechanisms are monitored using contact measurement [1,2] via external sensors or visual measurement [3][4][5]. Piezoelectric and capacitive sensors are the most prevalent types used for acceleration measurement.…”

Section: Introductionmentioning

confidence: 99%

Research on the Sensing Characteristics of an Integrated Grid-like Sensor Based on a Triboelectric Nanogenerator

Zhao,

Han,

Deng

et al. 2024

Sensors

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With the development of the integration and miniaturization of sensing devices, the concept of self-sensing devices has been proposed. A motion state is self-sensed via the structure or integration of an actuator in the construction of a sensing unit. This device is then used to capture the perception and measurement of states such as position, displacement, and speed. A triboelectric nanogenerator converts mechanical energy into electrical energy through the coupling effect of contact generation and electrostatic induction, which represents one of the reliable ways through which to realize integrated sensing. In this world, the power generation technology of the TENG is applied to a sensing device. The sensing characteristics of a grid-like TENG are designed and analyzed in freestanding triboelectric mode. Firstly, a relation model of displacement, velocity, voltage, and charge is established. The charge-transfer increment and current amounts are linearly related to the velocity. The open-circuit voltage has a positive relationship with the displacement. The maximum open-circuit voltage and the maximum charge transfer are fixed values, and they are only related to the inherent parameters of a triboelectric nanogenerator. Next, the sensor model is constructed using COMSOL Multiphysics 6.0. The simulation results show that the relationships between output voltage and charge transfer, as well as those between the increments of charge transfer, velocity, and displacement, are consistent with the results derived from the formula. Finally, a performance test of the designed sensor is carried out, and the results are consistent with the theoretical deduction and simulation. After analysis and processing of the output electrical signal by the host computer, it can feedback the frequency and speed value of the measured object. In addition, the output signal is stable, and there is no large fluctuation or attenuation during the 521-s vibration test. Because the working unit of the sensor is thin filmed, it is small in size, easy to integrate, and has no external power supply; moreover, it can be integrated into a device to realize the self-sensing of a motion state.

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“…The output voltage is often regarded as the most significant index to measure the transducer output 1 performance. [16][17][18][19][20] However, the current voltage generating performance limits its promotion and application to a certain extent.…”

Section: Introductionmentioning

confidence: 99%

Exploiting the voltage sensitivity of magnetostrictive transducer for energy harvesting and sensor applications

Dai

Zhao

Yang

et al. 2023

Measurement and Control

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Magnetostrictive transducer, as a kind of high-efficiency transducer, has a broad application in the field of energy harvesting and sensor. However, the voltage generating performance of the transducer limits its application. This paper will endeavor to quantify the load-induced voltage of magnetostrictive transducer by developing a holistic theoretical model and deriving the corresponding analytical solution. On this basis, this paper proposed the concept of voltage sensitivity in transducer optimization, which could quantitatively analyze the normalized voltage generated by a unit excitation. Based on the theoretical simulation and experimental validation, the voltage sensitivities of magnetostrictive transducer under different mechanical loads are investigated. The parametric analysis will be conducted to further optimize the transducer structure to enhance its open-circuit and load voltage. The works of this paper could be instructive to guide magnetostrictive transducer design in sensing and energy harvesting applications.

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Smart embedded PZT sensor for in-situ elastic property and vibration measurements in concrete

Cited by 25 publications

References 53 publications

Exploring chloride-induced corrosion in reinforced concrete structures through embedded piezo sensor technology: an experimental and numerical study

Exploring chloride-induced corrosion in reinforced concrete structures through embedded piezo sensor technology: an experimental and numerical study

Research on the Sensing Characteristics of an Integrated Grid-like Sensor Based on a Triboelectric Nanogenerator

Exploiting the voltage sensitivity of magnetostrictive transducer for energy harvesting and sensor applications

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