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Method for defining threshold stress curves utilized in fatigue and damage tolerance analysis
Method for defining threshold stress curves utilized in fatigue and damage tolerance analysis
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机译:定义疲劳和损伤耐受分析中使用的阈值应力曲线的方法
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摘要
A method for defining a threshold stress curve utilized in fatigue and/or damage tolerance analysis, the method including conducting a direct test method on a plurality of specimens with a notch to generate raw data, the notch in each of the specimens having a notch dimension; determining a plurality of analyzed data points based upon the raw data; determining a regression line based upon the plurality of data points, the regression line including an exponential portion and a power law portion; and connecting the exponential portion and the power law portion of the regression line to form a threshold stress curve based on the regression line.
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