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在疲劳断裂非平衡统计理论框架的基础上 ,根据界面能模型 ,推导出了多晶体金属的疲劳寿命随晶粒尺寸、应变振幅的变化公式 .还与有关实验结果进行了比较 ,发现理论与实验较为相符 .
Based on the theoretical framework of unbalanced statistical analysis of fatigue fracture, the formula of the fatigue life of the polycrystalline metal with the grain size and strain amplitude is deduced based on the interface energy model. It is also found that the theoretical and experimental results More in line.