Damage Localization of Conventional Creep Damage Models and Proposition of a New Model for Creep Damage Analysis
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概要
- 論文の詳細を見る
After examining the ill-natured stress sensitivity of the conventional creep damage equations of Kachanov-Rabotnov, it was shown that this stress sensitivity is one of the most essential causes of damage localization and mesh-dependence in local approach of creep fracture analyses. Then, in order to avoid this difficulty, alternative constitutive and evolution equations of creep and creep-damage are proposed from the view point of micromechanics. Finally, the proposed equations of creep and creep-damage are applied to the creep crack growth analysis of a perforated plate under tension. Significant improvement in damage localization and the mesh-dependence of the numerical results are ascertained.
- 一般社団法人日本機械学会の論文
- 1998-01-15
著者
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村上 澄男
愛知工科大学機械システム工学科
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LIU Yan
Department of Nutrition and Food Hygiene, School of Public Health, Nanjing Medical University
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Murakami Sumio
Department of Mechanical Engineering, Nagoya University
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Liu Yan
Department Of Cardiology Daping Hospital The Third Military Medical University
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Murakami Sumio
Department Of Mechanical Engineering Faculty Of Engineering Nagoya University
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Liu Yan
Department Of Mechanical Engineering Nagoya University
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Liu Yan
Department of Applied Physics, South China Agricultural University, Guangzhou 510642, China
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