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Breakdown Analysis of Piezoelectric Ceramics Using J Integral  

Lin, Song (Department of Mechanical Engineering, Inha Univ.)
Kim, Yu-Hwan (Department of Mechanical Engineering, Inha Univ.)
Beom, Hyeon-Gyu (Department of Mechanical Engineering, Inha Univ.)
Publication Information
Journal of the Korean Society for Precision Engineering / v.26, no.1, 2009 , pp. 105-111 More about this Journal
Abstract
Dielectric breakdown in piezoelectric ceramics is analyzed by using the three dimensional J integral. The J integral is shown to be a path-independent surface integral for a conductive tubular channel in a piezoelectric material. J integrals are also numerically calculated for conductive defects and tubular channels in piezoelectric ceramics through finite element analysis.
Keywords
J Integral; Conductive Channel; Piezoelectric Ceramic; Finite Element Analysis;
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