Electric Fracture and Polarization Switching Properties of Piezoelectric Ceramic PZT Studied by the Modified Small Punch Test

Shindo, Yasuhide; NARITA, Fumio; Horiguchi, Katsumi

doi:10.1299/jsmetohoku.2003.39.59

Cited by 19 publications

(28 citation statements)

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“…After E 0 reaches about −0.325 (−0.305) MV/m, polarization switching in a local region, based on the work (energy density), leads to an unexpected decrease in G for the permeable crack. Our previous experimental study [Shindo et al 2003] showed a significant nonlinearity in the fracture load due to polarization switching. The nonlinear effect caused by polarization switching may affect the piezoelectric crack behavior.…”

Section: Numerical Results and Discussionmentioning

confidence: 99%

Electroelastic intensification and domain switching near a plane strain crack in a rectangular piezoelectric material

Shindo

Narita

Saito

2007

JOMMS

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We study the effects of crack face boundary conditions and localized polarization switching on the piezoelectric fracture. This paper consists of two parts. In the first part, the electroelastic problem of an infinite piezoelectric material with a crack is formulated by means of integral transforms, and the exact solution is obtained. The electroelastic fields are expressed in closed form. The fracture mechanics parameters, such as energy release rate, are obtained for the permeable, impermeable and open crack models. In the second part, finite element analysis is carried out to study the crack behavior in a rectangular piezoelectric material by introducing a model for polarization switching in local areas of electroelastic field concentrations. A nonlinear behavior induced by localized polarization switching is observed between the fracture mechanics parameters and applied electric field.

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Section: Numerical Results and Discussionmentioning

confidence: 99%

Electroelastic intensification and domain switching near a plane strain crack in a rectangular piezoelectric material

Shindo

Narita

Saito

2007

JOMMS

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“…Piezoelectric ceramics are brittle materials basically, and their deformation in their practical use is described by linear equations, in which an additional term to represent the piezoelectric effect (or the converse piezoelectric effect) is included. Since the nonlinearity of the deformation in piezoelectric ceramics under excessive loading is caused by domain switching (change in poling direction of domain), the behavior of polarization is modeled theoretically (Joshi 1992;Hwang et al 1995Hwang et al , 1998Shindo et al 2003). Since the piezoelectric properties depend on internal structures, molecular dynamic simulations are applied to piezoelectric ceramics in order to predict material properties (Nakamachi et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Modeling of Internal Damage Evolution of Piezoelectric Ceramics Under Compression-Compression Fatigue Tests

Mizuno

Wakui

2015

Advanced Structured Materials

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A damage evolution equation for piezoelectric ceramics under compression-compression fatigue tests were formulated on the basis of previous experimental results within the framework of the continuum damage mechanics. In the previous experiments, columnar specimens of piezoelectric ceramics were subjected to compression-compression fatigue loading. The fatigue tests were suspended at specified intervals, and the resonance and anti-resonance frequencies and the electrostatic capacity of specimens were measured by an impedance analyzer. The loading and measurement were repeated up to the fatigue fracture. Material properties of piezoelectric ceramic specimens were calculated from the resonance and anti-resonance frequencies and the electrostatic capacity, and the variation of material properties during fatigue tests was elucidated. Development of internal damage within piezoelectric ceramics was evaluated as a damage variable by the variation of elastic coefficient on the basis of the continuum damage mechanics. An evolution equation of the damage variable was formulated by using fatigue life which was formulated as functions of the static fracture strength, the fatigue limit and the mean stress. Prediction of damage development was compared with experimental results and the validity of the formulation was verified.

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“…Some works (7), (8) showed that under a high negative electric field, the piezoelectric crack behavior is influenced by the polarization switching. It is also expected that the dielectric breakdown under a high positive electric field affect the fracture behavior of piezoelectric ceramics (9) . Although a numerical method for the polarization saturation (10) /strip dielectric breakdown (11) model was proposed for cracked piezoelectric ceramics, the impermeable and open crack face assumptions and unrealistic loading conditions (very high applied stress and electric field/electric displacement) were used to calculate the energy release rate (12) , and meaningless results were given.…”

Section: Introductionmentioning

confidence: 99%

Effects of Electric Field and Poling on the Mode I Energy Release Rate for Two Symmetric Edge Cracks in Rectangular Piezoelectric Ceramic Strips

Shindo

Narita

Matsuda

2011

JMMP

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This article discusses the results of the mode I energy release rate of rectangular piezoelectric ceramic strips with two symmetric edge cracks under electromechanical loading. Cracks were created normal or parallel to the poling direction, and applied electric fields were parallel/antiparallel to the poling. A nonlinear plane strain finite element analysis was performed, and the effect of localized polarization switching on the energy release rate was discussed for the permeable, impermeable, open and discharging cracks under a high negative electric field. In the case under a high positive electric field, we examined the effect of dielectric breakdown on the energy release rate.

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Electric Fracture and Polarization Switching Properties of Piezoelectric Ceramic PZT Studied by the Modified Small Punch Test

Abstract: Electric Fracture and Ceramic PZT knueig " G)stmaijreMt Polarization Switching Properties of Piezoelectric Studied by the Modified Small Punch Test oIE nceekit}ec(MaLJI<=)EpttHgt!gt (paaty< E)IE tmnva=-(ptatv

Cited by 19 publications

References 0 publications

Electroelastic intensification and domain switching near a plane strain crack in a rectangular piezoelectric material

Electroelastic intensification and domain switching near a plane strain crack in a rectangular piezoelectric material

Modeling of Internal Damage Evolution of Piezoelectric Ceramics Under Compression-Compression Fatigue Tests

Effects of Electric Field and Poling on the Mode I Energy Release Rate for Two Symmetric Edge Cracks in Rectangular Piezoelectric Ceramic Strips

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