期刊
INTERNATIONAL JOURNAL OF FATIGUE
卷 134, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ijfatigue.2020.105520
关键词
Fatigue strength; Welded joint; Thickness effect; Bead profiles; Relative stress gradient
In this study, by focusing on the relative stress gradient at weld toes, a prediction method was derived for the thickness and bead profile effects on fatigue limit for welded joints. Based on the results of stress analyses for several types of welded joints, relative stress gradient was clarified as contingent only on weld toe radius, regardless of welded joint, and loading types. Accordingly, the proposed prediction method represents a unified approach that does not depend on welded joint types. The proposed method indicated as being able to successfully predict geometric effect via comparison of experimental data.
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