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Evaluation of factors affecting the fatigue behavior of butt-welded joints using SM520C-TMC steel
International Journal of Steel Structures ( IF 1.5 ) Pub Date : 2009 , DOI: 10.1007/bf03249493
Kyoung-Nam Kim , Seong-Haeng Lee , Kyoung-Sup Jung

To evaluate the factors affecting fatigue behavior of butt-welded joints, fatigue tests and tension tests were conducted on SM520C-TMC steels with thicknesses ranging from 20 mm to 80 mm. When the fatigue strength of 20 mm thick plate is achieved, the reduction of the fatigue strength of 80 mm thick plate by the present study is improved by over 11.7% to that of previous studies. For fatigue behavior, the reduction in fatigue strength was influenced more significantly by the effect of the geometry of the toe of the weld than by the softening effect. Therefore, the major determinant of fatigue life is the stress concentration factor depending on the shape of the weld zone. These are the same results as those reported in previous research with small-sized tests.

中文翻译:

使用SM520C-TMC钢评估影响对焊接头疲劳性能的因素

为了评估影响对接接头疲劳性能的因素,对厚度范围为20 mm至80 mm的SM520C-TMC钢进行了疲劳测试和拉伸测试。当达到20mm厚板的疲劳强度时,本研究将80mm厚板的疲劳强度降低比以前的研究提高了11.7%以上。对于疲劳行为,疲劳强度的降低受焊缝趾部几何形状的影响比受软化作用的影响更大。因此,疲劳寿命的主要决定因素是取决于焊接区形状的应力集中系数。这些结果与以前的小型试验研究报告的结果相同。
更新日期:2020-09-14
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