...毕业论文格式 关键词:车辆工程;长疲劳裂纹;概率模型;Forman方程 [gap=1087]Key words:vehicle engineering; long fatigue crack; probabilistic model; Forman equation Author resume:YANG Bing (19792), male, do..
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Moreover, the study indicated that the fatigue crack initiation period is the main portion of the total fatigue life at long lives.
该研究还表明，在长寿命范围，裂纹起始寿命是疲劳全寿命的主要部分。
Fatigue life prediction from the initial crack size to failure based on long crack propagation at different zones of welded joint was made by using j.
以焊接处微观结构缺陷尺寸作为初始裂纹尺寸，采用基于裂纹闭合的全寿命预测模型，以焊接区域不同位置的长裂纹扩展速率曲线作为基线，利用J。
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