| 30CrMnSiNi2A钢疲劳裂纹形成寿命表征与预测 |
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| 引用本文： | 黄宏发,阎海,陶春虎. 30CrMnSiNi2A钢疲劳裂纹形成寿命表征与预测[J]. 材料工程, 1997, 0(5) |
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| 作者姓名： | 黄宏发 阎海 陶春虎 |
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| 作者单位： | 北京航空材料研究院 |
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| 摘 要： | 采用耐久性分析方法 ,由断口金相数据得到参考裂纹扩展时间 (TTCI)的概率分布函数 ,由 TTCI概率分布函数和约束条件得到了通用当量初始缺陷尺寸 (EIFS)的概率分布函数。
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| 关 键 词： | 参考裂纹形成时间(TTCI) 当量初始缺陷尺寸(EIFS) |
Characterizing and Prediction of30 Cr Mn Si Ni2 A Fatigue Crack Initiation Time |
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| Huang Hongfa Yan Hai Tao Chunhu. Characterizing and Prediction of30 Cr Mn Si Ni2 A Fatigue Crack Initiation Time[J]. Journal of Materials Engineering, 1997, 0(5) |
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| Authors: | Huang Hongfa Yan Hai Tao Chunhu |
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| Abstract: | The a- t data from fracture surface are analysed by an equation of crack growth rate that is often used in durability.Weibull distribution is used to describe the distribution of reference crack initia- tion time.Equivalent initial faults sizes distribution characterizing a group of specimens with the same con- figuration under spectrum loading is finished.From the results,the TTCI distribution probabilities about different stress levels and crack lengths could be obtained. |
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| Keywords: | reference crack initiation time ( TTCI) equivalent initial faults size ( EIFS) |
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