Fatigue crack growth driven by electric fields in piezoelectric ceramics and its governing fracture parameters

Nam, Byeung-Gun; Tsuchida, Shigehiro; Watanabe, Katsuhiko

doi:10.1016/j.ijengsci.2007.12.009

Cited by 10 publications

(8 citation statements)

References 17 publications

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“…In the experiments with electromechanical loading, crack growth rates increased with the additional mechanical load [28]. Nam et al [29] applied AC, uni-and sesquipolar (sesqui (lat. ): one-and-one-half times) cyclic electric fields of 5 Hz and of amplitudes of 0.8 E c to 1.3 E c to DCB samples.…”

Section: Crack Growth Due To Ac Voltagementioning

confidence: 99%

Influence of small cyclic and DC electrical loads on the fracture toughness of ferroelectric ceramics

Engert

Neumeister

Mecklenburg

et al. 2011

Journal of the European Ceramic Society

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Section: Crack Growth Due To Ac Voltagementioning

confidence: 99%

Influence of small cyclic and DC electrical loads on the fracture toughness of ferroelectric ceramics

Engert

Neumeister

Mecklenburg

et al. 2011

Journal of the European Ceramic Society

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“…Researches (Li et al, 2020; Luo et al, 2012; Nam et al, 2008; Pomyai et al, 2021; Promsawat et al, 2017c; Shindo et al, 2017) on the effects of external influences have mainly considered the influence of the electric field and temperature and analysed the fatigue behaviour of piezoelectric ceramics under different conditions. For example, Shindo et al (2017) carried out dynamic fatigue experiments on piezoelectric ceramics with cracks under the joint influence of an electric field and low temperature.…”

Section: Introductionmentioning

confidence: 99%

Fatigue behaviour of piezoelectric ceramic stack under large cyclic dynamic loading

Ding

Xing

Chen

et al. 2023

Journal of Intelligent Material Systems and Structures

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The fatigue behaviour of a piezoelectric ceramic stack co-fired at low temperatures under the influence of a large cyclic dynamic load was studied. The piezoelectric ceramic stack is equivalent to a parallel plate capacitor with a charge source in parallel. The equations for the total current, output current and capacitor charging current of an equivalent device for an applied load were derived using Kirchhoff’s theoretical formula. A new type of fatigue test equipment was developed for continuous long-term M-shaped wave output. The piezoelectric ceramic stack is positioned between two concrete slabs, forming a pavement-subgrade piezoelectric structure. The fatigue behaviour of the piezoelectric ceramic stack was observed for 800,000 cycles of dynamic load. The results show that the dynamic load studied produced fatigue damage in the piezoelectric ceramic stack. As the number of dynamic loads increased, the electric output capacity of the piezoelectric ceramic stack decreased. Evident stage divisions were observed in the fatigue behaviour of the piezoelectric ceramic stack under cyclic dynamic loading. The electric output capacity of the stack decreased as the number of dynamic loads increased in the early and late stages, whereas it exhibited negligible change during the stable period.

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“…Another important problem generated during the machining process is the fatigue crack [14]. The existence of the crack was found to induce considerable local flexibility due to the strain energy concentration in the vicinity of the crack tip under load.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Characteristics of Electrostatically Actuated Microbeams with Slant Crack

Zhou

Zhang

Meng

2015

Mathematical Problems in Engineering

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An improved model of the slant crack on a microbeam is presented. Based on fracture mechanics, the rotation coefficient for the slant crack is derived as a massless rotational spring accounting for the additional stress intensity factors generated by the orientation of the crack compared to the transverse crack. Comparisons between microbeams with a slant crack of different geometry parameters (slant angle, depth ratio, and crack position) are investigated with regard to the dynamic mechanical behaviors and nonlinear response. By presenting a mathematical modeling, the effects of the slant crack and the electric actuation of an electrostatically actuated fixed-fixed microbeam on the dynamic characteristics are examined in detail. It is shown that the crack position has more significant influence on the pull-in voltage value than the slant angle or the depth ratio. Approaching the slant crack to the fixed end or enlarging the external incentives amplifies the nonlinearity of the microbeam system, while the effects of depth ratio and slant angle are dependent on the crack position. The resonance frequency and the resonance amplitude are affected as well.

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Fatigue crack growth driven by electric fields in piezoelectric ceramics and its governing fracture parameters

Cited by 10 publications

References 17 publications

Influence of small cyclic and DC electrical loads on the fracture toughness of ferroelectric ceramics

Influence of small cyclic and DC electrical loads on the fracture toughness of ferroelectric ceramics

Fatigue behaviour of piezoelectric ceramic stack under large cyclic dynamic loading

Dynamic Characteristics of Electrostatically Actuated Microbeams with Slant Crack

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