Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Effect of Transverse Electric Fields on Fracture Behavior of Ferroelectric Ceramics

횡전기장이 강유전체 세라믹의 파괴거동에 미치는 영향

  • 이종식 (전남대학교 대학원 기계공학과) ;
  • 범현규 (인하대학교 기계공학과) ;
  • 정경문 (전남대학교 대학원 기계공학과)
  • Published : 2005.02.01
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Abstract

Effect of transverse electric fields on fracture behavior in ferroelectric ceramics under purely electrical loading is investigated. It is shown that the shape and size of the domain switching zone depend strongly on the ratio of the transverse electric field to the coercive electric field as well as the direction of the applied electric field. Under small-scale conditions, the crack-tip mode I and II stress intensity factors induced by ferroelectric domain switching are numerically obtained. The crack kinking in ferroelectric ceramics is also discussed.

Keywords

References

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