| 疲劳裂纹扩展的概率分析模型 |
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| 引用本文： | 黄培彦.疲劳裂纹扩展的概率分析模型[J].华南理工大学学报(自然科学版),1995,23(5):56-65. |
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| 作者姓名： | 黄培彦 |
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| 作者单位： | 华南理工大学工程力学系 |
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| 基金项目： | 华南理工大学自然科学基金 |
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| 摘 要： | 本文提出了一个新的疲劳纹扩展的概率分析模型，对裂纹扩展速率表达中参数Ｃ和ｍ的概率特性进行理论，上Ｃ和ｍ的相关关系得到该分析模型的一个数学论证，并采用ΔＫ控制的纹扩展实验对模型的正确性和可行性进行了验证，给出了各参数的解析方法和该模型的应用例。?
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| 关 键 词： | 疲劳裂纹 裂纹扩展 概率分析 疲劳损坏 |
A PROBABILISTIC MODEL FOR FATIGUE CRACK GROWTH |
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| Huang Peiyan.A PROBABILISTIC MODEL FOR FATIGUE CRACK GROWTH[J].Journal of South China University of Technology(Natural Science Edition),1995,23(5):56-65. |
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| Authors: | Huang Peiyan |
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| Abstract: | This paper deals with a new probabilistic model to present the behaviorwith respect to the fatigue crack growth. The crack growth law is proposed, and alsothe probabilistic properties of the parameters, C and m, are discussed. The mathematicmethod with respeCt to the relationship between C and m, and the experimental methodusing the AK controlled fatigue crack growth test are proposed to expound and provethe validity and feasibility of the model.The method for the determination of theparameters of the model is presented, and applied to estimate the fatigue crack growthlives. |
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| Keywords: | fatigue crack probability model/Probabilistic properties crack growth |
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