Thermal Effects of Cracked Piezoelectric Materials under Cycling Electric-Loading

Ning Ning Du; Shou Wen Yu

doi:10.4028/www.scientific.net/KEM.312.35

Paper Titles

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Thermal Effects of Cracked Piezoelectric Materials under Cycling Electric-Loading
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Near-Tip Fields for Penny-Shaped Cracks in Magnetoelectroelastic Media
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Functionally Graded Materials with Periodic Cracks Subjected to Transient Loading
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 312Thermal Effects of Cracked Piezoelectric Materials...

Thermal Effects of Cracked Piezoelectric Materials under Cycling Electric-Loading

Abstract:

It is still an open problem how the thermal effect influences the fracture behavior of piezoelectric materials especially under cycling electrical loading. Experimental observations have found that the fracture toughness of piezoelectric solids under electric loading may be greatly different from that under mechanical loading. A pronounced rise of temperature may be caused either by mechanical or by electric loading. In this paper, the thermal effects and energy dissipation mechanism in cracked piezoelectric materials under cyclic-electric-loading have been studied. The temperature rise is derived under the assumption of decoupling between thermal and electromechanical fields and the influences of frequency and the shape of electric wave on the temperature rise are quantitatively analyzed.

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Key Engineering Materials (Volume 312)

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35-40

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https://doi.org/10.4028/www.scientific.net/KEM.312.35

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Online since:

June 2006

Authors:

Ning Ning Du, Shou Wen Yu

Keywords:

Cyclic-Electric Loading, Electrical Loading, Piezoelectric Material, Polarization Switching, Thermal Effect

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