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Fatigue Crack Propagation under Combined Cyclic Mechanical Loading and Electric Field in Piezoelectric Ceramics
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- SHIRAKIHARA Kaori
- Japan Atomic Energy Agency
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- TANAKA Keisuke
- 名古屋大学大学院工学研究科
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- AKINIWA Yoshiaki
- 名古屋大学大学院工学研究科
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- SUZUKI Yasuyoshi
- 関西電力 (株)
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- MUKAI Hirokatsu
- (株) デンソー
Bibliographic Information
- Other Title
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- 圧電セラミックスにおける繰返し荷重および直流電界重畳下での疲労き裂進展挙動
- アツデン セラミックス ニ オケル クリカエシ カジュウ オヨビ チョクリュウ デンカイ チョウジョウ カ デ ノ ヒロウ キレツ シンテン キョドウ
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Description
Fatigue crack propagation tests of PZT specimens were performed under cyclic four-point bending with and without superposition of electric fields. The specimens were poled in the longitudinal direction (PL specimens) perpendicular to the crack plane. The crack propagation rate for the case of open circuit was faster than that for the case of short circuit. The application of a negative or positive electric field parallel to the poling direction accelerated the crack propagation rate, and the amount of acceleration was larger for the case of the negative field. The change of the crack propagation rate with crack extension can be divided into three regions. In the region I, the crack propagation rate decreases with increasing crack length, and then turn to increase in the region III. In the region II, the propagation rate is nearly constant. The mechanisms of fatigue crack propagation were correlated to domain switching near the crack tip. The grain boundary fracture was predominant in the low-rate region, while transgranular fracture became abundant on the unstable fracture surface.
Journal
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- TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A
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TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A 72 (718), 914-921, 2006
The Japan Society of Mechanical Engineers
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Keywords
Details 詳細情報について
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- CRID
- 1390282679455215360
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- NII Article ID
- 110004741192
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- NII Book ID
- AN0018742X
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- COI
- 1:CAS:528:DC%2BD28XovFyqsb0%3D
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- ISSN
- 18848338
- 03875008
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- HANDLE
- 2237/9121
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- NDL BIB ID
- 8011343
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- Text Lang
- ja
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- Article Type
- journal article
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- Data Source
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- JaLC
- IRDB
- NDL Search
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed