| 裂纹塑性疲劳扩展分析 |
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| 引用本文： | 笪中杰,高永寿.裂纹塑性疲劳扩展分析[J].航空学报,1988,9(9):440-444. |
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| 作者姓名： | 笪中杰 高永寿 |
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| 作者单位： | 南京航空学院
(笪中杰)，南京航空学院(高永寿) |
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| 摘 要： | 本文分析了裂纹塑性疲劳扩展的力学机理,提出了裂纹塑性疲劳扩展的判据。结合实验对数值计算结果进行了分析讨论,并推导出裂纹塑性疲劳扩展速率的近似解析公式。
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| 收稿时间： | 1987-09-14; |
AN ANALYSIS OF THE PLASTIC FATIGUE CRACK GROWTH |
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| Da Zhongjie and Gao Yongshou.AN ANALYSIS OF THE PLASTIC FATIGUE CRACK GROWTH[J].Acta Aeronautica et Astronautica Sinica,1988,9(9):440-444. |
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| Authors: | Da Zhongjie and Gao Yongshou |
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| Institution: | Nanjing Aeronautical Institute |
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| Abstract: | In this paper the mechanism of plastic fatigue crack growth(PFCG)was analyzed and an appropriate criterion was proposed. Elastic-plastic (incremental) finite-element method was used to study PFCG. As an example, a central cracked plate with pulse uniaxial tension was used to demostrate the initiation and the processes of the stable crack growth. Experimental data were compared with the computational results. An approximate equation for PFCG was given and the possible ways for engineering use of this equation were pointed out. |
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| Keywords: | stresses strains fatigue crack propagation fractures |
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