| 谱载下裂纹扩展的计算及实验分析 |
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| 引用本文： | 高金华.谱载下裂纹扩展的计算及实验分析[J].中国民航学院学报,1989(3). |
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| 作者姓名： | 高金华 |
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| 作者单位： | 中国民航学院基础课部 |
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| 摘 要： | 本文针对裂纹扩展的Willenborg-Chang模型,提出了如何合理地选择参数,怎样对残余塑性区尺寸进行修正及随机加载谱的处理。通过实验和计算结果的对比,说明上述想法的正确性,并提出Willenborg-Chang模型更适用于较长裂纹的寿命估算。
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| 关 键 词： | 裂纹扩展 载荷谱 迟滞塑性区 随机加载试验 寿命估算 |
Calculation and Test Analysis of Crack Propagation under Spectrum Loading |
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| Gao jinhua Civil Aviation Institute of China.Calculation and Test Analysis of Crack Propagation under Spectrum Loading[J].Journal of Civil Aviation University of China,1989(3). |
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| Authors: | Gao jinhua Civil Aviation Institute of China |
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| Institution: | Gao jinhua Civil Aviation Institute of China |
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| Abstract: | With respect to the Willenborg/Chang Model,this paper proposes three methods respectively of selecting parameters,of revising the remainder of plastic zone and of dealing with random loading spectrum.A comparison between the test results and the calculation results has confirmed the validity of these methods.It also indicates that the Willenborg/Chang Model is more suitable for life estimation with longer cracks. |
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| Keywords: | crack progagation loading spectrum retarding plastic zone random loading test life estimation |
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