| CRACK PROPAGATION BEHAVIOR AND LIFETIME PREDICTION IN ALUMINA AND ZIRCONIA |
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| 引用本文： | Kiyohiko Ikeda ,Koichi Kaizu. CRACK PROPAGATION BEHAVIOR AND LIFETIME PREDICTION IN ALUMINA AND ZIRCONIA[J]. 机械工程学报(英文版), 2002, 15(3): 284-288 |
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| 作者姓名： | Kiyohiko Ikeda Koichi Kaizu |
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| 作者单位： | Zhu Ping Lin Zhongqin Chen Guanlong Lai Xinmin School of Mechanical Engineering，Shanghai Jiaotong University，Shanghai 200030，ChinaKiyohiko Ikeda Koichi KaizuMiyazaki University，Japan |
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| 摘 要： | The lifetime prediction of ceramics is discussed on the basis of the relationship between stress intensity factorK1 and crack velocity ν. The effects of water environment, the cyclic loading and microstructure of material on K1-ν characteristics are studied by carrying out the crack growth tests by the double torsion (DT) method under the static andcyclic loading in both environments of air and water for alumina and zirconia. K1-ν characteristics determined by the double torsion method are used to predict time-to-failure under the cyclic loading of alumina and zirconia ceramics. The predictions agree qualitatively with the experimental results.
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CRACK PROPAGATION BEHAVIOR AND LIFETIME PREDICTION IN ALUMINA AND ZIRCONIA |
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| Zhu Ping Lin Zhongqin Chen Guanlong Lai Xinmin Kiyohiko Ikeda Koichi Kaizu. CRACK PROPAGATION BEHAVIOR AND LIFETIME PREDICTION IN ALUMINA AND ZIRCONIA[J]. Chinese Journal of Mechanical Engineering, 2002, 15(3): 284-288 |
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| Authors: | Zhu Ping Lin Zhongqin Chen Guanlong Lai Xinmin Kiyohiko Ikeda Koichi Kaizu |
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| Affiliation: | School of Mechanical Engineering,Shanghai Jiaotong University,Shanghai 200030,China School of Mechanical Engineering,Shanghai Jiaotong University,Shanghai 200030,China School of Mechanical Engineering,Shanghai Jiaotong University,Shanghai 200030,China School of Mechanical Engineering,Shanghai Jiaotong University,Shanghai 200030,China Miyazaki University,Japan Miyazaki University,Japan |
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| Abstract: | The lifetime prediction of ceramics is discussed on the basis of the relationship between stress intensity factor KI and crack velocity v. The effects of water environment, the cyclic loading and microstructure of material on KI-v characteristics are studied by carrying out the crack growth tests by the double torsion (DT) method under the static and cyclic loading in both environments of air and water for alumina and zirconia. KI-v characteristics determined by the double torsion method are used to predict time-to-failure under the cyclic loading of alumina and zirconia ceramics. The predictions agree qualitatively with the experimental results. |
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| Keywords: | : Alumina Zirconia Fatigue Crack growth Lifetime prediction |
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