Electromechanical impact analysis of 2–2 cement-based piezoelectric sensor considering resistor

Zhang, Taotao; Li, Jiayi; Liu, Wende

doi:10.1177/1045389x20914391

Cited by 8 publications

(3 citation statements)

References 40 publications

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“…The model is in an algebraic analytical form with no complex calculus involved, which can be easily used to design and optimize 2-2 cement-based piezoelectric composites. Zhang et al [25][26][27][28][29][30][31] preformed a systematic theoretical study and comprehensively analyzed dynamic properties of 2-2 cement-based piezoelectric composites under impact load. They discussed the effects of the connected resistor, the layer numbers of the composite, the material and geometrical parameters of electrode layers, different types of impact loads, piezoelectric parameters and the thickness of the piezoelectric layer on the dynamic properties.…”

Section: Introductionmentioning

confidence: 99%

Modeling and analysis of frequency-variable 2–2 cement-based piezoelectric transducers

Lan¹,

Wen²,

Wang³

et al. 2023

Smart Mater. Struct.

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2-2 cement-based piezoelectric transducers can be used as high-performance actuators and sensors. However, the existing designs with fixed electromechanical properties cannot meet some special application requirements, such as the tuning working frequency to achieve high precision monitoring purpose. To address this issue, a type of frequency-variable 2-2 cement-based piezoelectric transducers is proposed in this paper. Theoretical models of the proposed transducer are established, and the analytical solutions of its longitudinal vibration are obtained. The theoretical models are verified by comparing their results with those of the existing literature for some special examples, and with the finite element results for a special case. In addition, the effects of the tuning resistance, the ratio of piezoelectric layer numbers between the active and passive elements, the electrical connections of piezoelectric layers, and the total number of piezoelectric layers on the electromechanical properties of transducer are discussed. It is demonstrated that the proposed frequency-variable 2-2 cement-based piezoelectric transducers can obtain a large tunable bandwidth by adjusting the appropriate ratio of piezoelectric layer numbers between the active and passive elements and their electrical connections, which provides a theoretical basis for designing and optimizing this type of transducers.

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Section: Introductionmentioning

confidence: 99%

Modeling and analysis of frequency-variable 2–2 cement-based piezoelectric transducers

Lan¹,

Wen²,

Wang³

et al. 2023

Smart Mater. Struct.

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show abstract

“…However, as the acoustic impedance of PZT ceramics approximates 30 MRayls, a value much higher than that of concrete (~9 MRayls), the compatibility problem between piezoelectric ceramic transducer and civil engineering structure tends to cause obvious excitation signal loss and a deterioration of the measurement accuracy [13][14][15]. Therefore, cement-based piezoelectric composites were invented using cement as the matrix and piezoelectric ceramics as the functional component to close the gap of acoustic impedance (Z) between piezoelectric transducers and cements [16][17][18][19]. For example, Li et al fabricated 0-3 type cement-based piezoelectric composites by mixing white Portland cement with PZT ceramic powders, which successfully decreased the acoustic impedance (Z) to about 8.95 MRayls and resolved the compatibility problems [20].…”

Section: Introductionmentioning

confidence: 99%

Effects of the Water/Cement Ratio on the Properties of 3-3 Type Cement-Based Piezoelectric Composites

et al. 2022

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In this work, 3-3 type porous lead zirconate titanate (PZT) ceramics were fabricated by incorporating particle-stabilized foams using the gel-casting method. Then, Portland cement pastes with different water/cement ratios (w/c) were cast into the porous ceramics to produce cement-based piezoelectric (PZT-PC) composites. The effects of w/c on phase structure, microscopic morphology, and electrical properties were studied. The results showed that the amount of hydrated cement products and the density of the PZT–PC composites increased with the increase of w/c from 0.3 to 0.9 and then decreased till w/c achieved a value of 1.1. Correspondingly, the values of both εr and d33 increased with the density of the PZT–PC composites, resulting in less defects and greater poling efficiency. When w/c was maintained at 0.9, the 3-3 type cement-based piezoelectric composites presented the greatest Kt value of 40.14% and the lowest Z value of 6.98 MRayls, becoming suitable for applications in civil engineering for structural health monitoring.

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“…Balamonica et al ( 12 ) embedded the intelligent lead zirconate titanate sensor into the reinforced concrete beam and proposed a multi-sensing technology of series and parallel connections of lead zirconate titanate sheets for structural damage detection. Zhang et al ( 13 ) established the model of 2-2 cement-based piezoelectric sensors, and analyzed the influence of different material parameters on the electrical properties. Tu and Chen ( 14 ) explored the joint microstructure effect of the amplitude-to-wavelength ratio, volume fraction, and polarization direction of piezoelectric phases in electromechanical laminated composites, and studied the homogenization and localization response of BaTiO3/PZT-7A structure.…”

mentioning

confidence: 99%

Prototype Design of Cement/Emulsified Asphalt Based Piezoelectric Composites and its Potential Application in Vehicle Speed Sensing

Zhu

Zhou

Ye³

et al. 2021

Transportation Research Record: Journal of the Transportation R

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Piezoelectric composites (PC) embedded in pavement have shown great potential in traffic information sensing. As the main form of transportation, the road is the source of much traffic information including vehicle load information. The research into PC can supplement the collection of traffic information used in the development of intelligent technologies and provide effective solutions to problems existing in the process of information gathering. In this study, a 2-2 cement/emulsified asphalt-based PC was prepared with the cutting-filling method. To optimize the PC preparation, the effects of the volume fraction of the piezoelectric phase and the matrix phase composition on the piezoelectric properties of the PC were investigated by employing the finite element method. The results indicated that the smaller the volume fraction of the piezoelectric phase, the higher the voltage output of the PC, and the higher the sensitivity to external load, but the greater the stress concentration at the interface between the piezoelectric phase and the matrix phase. In addition, the greater the amount of emulsified asphalt in the matrix phase, the higher the voltage output of the PC. However, a higher content of emulsified asphalt will undermine the fluidity of the matrix phase. Based on the simulation analysis, performance optimization of the cement/emulsified asphalt PC was achieved. According to the voltage output characteristic of PC under a moving load, a placement scheme of PCs in the asphalt pavement was also proposed, which enables vehicle speeds to be be sensed with high precision.

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Electromechanical impact analysis of 2–2 cement-based piezoelectric sensor considering resistor

Cited by 8 publications

References 40 publications

Modeling and analysis of frequency-variable 2–2 cement-based piezoelectric transducers

Modeling and analysis of frequency-variable 2–2 cement-based piezoelectric transducers

Effects of the Water/Cement Ratio on the Properties of 3-3 Type Cement-Based Piezoelectric Composites

Prototype Design of Cement/Emulsified Asphalt Based Piezoelectric Composites and its Potential Application in Vehicle Speed Sensing

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