首页> 外文期刊>Welding in the World: Journal of the International Institute of Welding: Journal of the International Institute of Welding >FATIGUE TESTS AND NUMERICAL ANALYSES OF PARTIAL-LOAD AND FULL-LOAD CARRYING FILLET WELDS AT COVER PLATES AND LAP JOINTS
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FATIGUE TESTS AND NUMERICAL ANALYSES OF PARTIAL-LOAD AND FULL-LOAD CARRYING FILLET WELDS AT COVER PLATES AND LAP JOINTS

机译:盖板和搭接接头处部分载荷和全载荷填角焊缝的疲劳试验和数值分析

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摘要

The fatigue strength of fillet welds is dependent on the amount of loads transferred. This is considered in the approaches for fatigue assessment in different ways. Particularly in the structural stress approaches, modified stress distributions in thickness direction of the parent plate have recently been proposed to consider the amount of load carried by the fillet weld in the fatigue assessment. In order to validate the approaches, fatigue tests have been performed with cover plates having partial-load carrying fillet welds and lap joints having full-load carrying fillet welds. The thickness of all plates was 12 mm, while two throat thicknesses with 3 and 7 mm were realized. The approaches for fatigue strength assessment include different structural stress approaches and the effective notch stress approach. Conclusions are drawn from a comparison of the approaches and from the fatigue lives obtained with respect to the consideration of the amount of load carried by fillet welds.
机译:角焊缝的疲劳强度取决于所传递的载荷量。在疲劳评估方法中以不同的方式考虑了这一点。特别是在结构应力方法中,最近已提出在母板厚度方向上修改应力分布,以考虑在疲劳评估中角焊缝承受的载荷量。为了验证这些方法,已经对具有部分负荷角焊缝的盖板和具有全部负荷角焊缝的搭接接头进行了疲劳测试。所有板的厚度为12mm,而实现了3mm和7mm的两个喉部厚度。疲劳强度评估的方法包括不同的结构应力方法和有效的缺口应力方法。通过比较方法和从考虑角焊缝承受的载荷量得出的疲劳寿命得出结论。

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