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通过对文献中白铜弹簧丝疲劳寿命试验数据的分析,给出了其带存活率的疲劳寿命曲线表达式。在此基础上,建立了两级载荷下累积疲劳损伤及其概率分布的预测模型
Through the analysis of the fatigue life test data of white copper spring wire in the literature, the expression of fatigue life curve with survival rate is given. On this basis, the prediction model of cumulative fatigue damage and its probability distribution under two-level load