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首页> 外文期刊>Journal of Materials Engineering and Performance >The Effect of Weld Profile and Geometries of Butt Weld Joints on Fatigue Life Under Cyclic Tensile Loading
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The Effect of Weld Profile and Geometries of Butt Weld Joints on Fatigue Life Under Cyclic Tensile Loading

机译：循环拉伸载荷下对接焊缝的焊接轮廓和几何形状对疲劳寿命的影响

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摘要

The fatigue life of welded joint was calculated based on numerical integration of simple Paris' law and a reliable solution of the stress intensity factor (SIF). The initial crack length (a_i) was assumed to be equal to 0.1 mm in case of weld toe. This length was satisfactory for different butt joints geometries. The comparisons with the available data from standards and literature were demonstrated. It was shown numerically that the machining of weld reinforcements will increase the fatigue life. The increase of plate thickness decreases the fatigue strength (FAT) and the number of cycles to failure when using the proportional scaling of crack length. The validation processes of the current calculations have been shown. Therefore, it can be concluded that it will prevent the unnecessary waste of time consumed to carry out the experiments.
机译：基于简单的巴黎定律的数值积分和应力强度因子（SIF）的可靠解，计算了焊接接头的疲劳寿命。在焊趾的情况下，假定初始裂纹长度（a_i）等于0.1 mm。对于不同的对接几何形状，该长度是令人满意的。证明了与标准和文献中可用数据的比较。数值表明，焊接补强材料的加工将增加疲劳寿命。当使用裂纹长度的比例缩放时，增加板厚会降低疲劳强度（FAT）和失效循环数。已经显示了当前计算的验证过程。因此，可以得出结论，它将防止不必要地浪费进行实验所花费的时间。

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