Experimental and theoretical investigation of temperature-dependent electrical fatigue studies on 1-3 type piezocomposites

Mohan, Y.; Arockiarajan, A.

doi:10.1063/1.4944582

Cited by 13 publications

(7 citation statements)

References 39 publications

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“…Electrical fatigue results in the degradation and deterioration of electromechanical variables (saturation strain and polarization) in 1-3 piezocomposites, as reported by researchers in the past [95,96]. These observations have been attributed to the formation of microcracks [96,109], unavailability of domain switching processes and exhaustion of available domains for switching [95].…”

Section: Introductionmentioning

confidence: 84%

“…1-3 piezocomposites are useful candidates as transducers, sensors and actuators-applications that require materials with minimum hysteretic and structural damping [95]. 1-3 piezocomposites have a passive polymer matrix with an inherent damping and relaxing effect.…”

Section: Hysteresismentioning

confidence: 99%

“…Several transducer and biomedical applications require 1-3 piezocomposites to sustain cyclic electrical loads for large number of fatigue cycles. Fatigue causes exhaustion of available domains with an increase in volume fraction of frozen domains and generation of microcracks, that further manifests in the degradation of coupled material properties [95]. Material degradation is observed to deteriorate remnant electromechanical variables owing to repeated domain switching for higher electrical and thermal loads.…”

Section: Fatiguementioning

confidence: 99%

“…Often, their output is unpredictable and a loss in accuracy, reliability and precision is observed [84,85]. During their applications, 1-3 piezocomposites are subjected to a variety of loading conditions that give rise to their nonlinear response in the form of hysteresis [86][87][88][89], depolarization [90][91][92][93], fatigue [94][95][96][97] and creep [15,[98][99][100]. These are the manifestations of the myriad phenomena occurring in 1-3 piezocomposites across different length and time scales [101].…”

Section: Introductionmentioning

confidence: 99%

“…In the past, experimental characterization including piezoelectric hysteresis [123,129], mechanical depolarization [90,92], electric fatigue [95,96] and thermo-electromechanical creep [100,130] has been carried out alongside analytical and numerical modeling. While the experimental procedures involved application of bipolar and/or ramp-andhold electric field to the 1-3 piezocomposites and/or application of mechanical pre-stress with different thermal loads, the modeling aspects mainly focused on analytical approaches like viscoelastic and hybrid phenomenological models, and numerical approaches such as finite element and finite volume methods, and micromechanical models [115].…”

Section: Introductionmentioning

confidence: 99%

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Effective properties and nonlinearities in 1-3 piezocomposites: a comprehensive review

Pramanik

Arockiarajan

2019

Smart Mater. Struct.

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1-3 piezocomposites are excellent candidate materials for sensor, actuator and transducer applications owing to their remarkable dielectric properties, enhanced piezoelectric coupling constants and improved hydrostatic performance along with tunable acoustic impedance, high bandwidth and reliability. These materials find extensive use in aerospace, naval and biomedical sectors. 1-3 piezocomposites show a linear response when subjected to low electric fields and/or mechanical stresses. In such cases, linear models are sufficient for predicting their linear response. But, when high electro-mechanical loads are applied to these materials, they show nonlinearity owing to the presence of a passive and viscoelastic polymer matrix phase and inherent hysteretic damping in the piezoceramic fibers. This is when it becomes mandatory to understand both their linear and nonlinear behavior under different magnitudes of thermo-electro-mechanical static and dynamic loads. Linear response is modeled using linear piezoelectric constitutive equations. Nonlinearities in the form of hysteresis, depolarization, fatigue and creep occurs in 1-3 piezocomposites, which drastically affects their accuracy, precision and efficiency. In order to understand these nonlinearities, analytical and numerical methods have been proposed by several researchers in the past. An endeavor has been undertaken to review some of the attempts made earlier in these directions. Effective properties of these inhomogeneous media are evaluated through different hypotheses and assumptions. Most often, experimental routes are undertaken to predict material properties of 1-3 piezocomposites; nevertheless, the experimental evaluation of a few material properties is quite difficult and sometimes impossible, even with the best state-of-the-art experimental facilities. This motivates researchers to develop theoretical models to predict these material properties. Nonlinearities in 1-3 piezocomposites have been studied by researchers earlier with different theoretical modeling approaches and experimental techniques. This review paper is an endeavor to discuss the progress regarding the study of effective properties and nonlinearities in 1-3 piezocomposites in a coherent and holistic manner.

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