In the current study a method to determine the location of fracture initiation for non-load carrying fillet welds based on continuous geometry measurements is proposed. Measurements and weld quality evaluation were carried out on welded specimens using the Winteria® software qWeld. One hundred nineteen specimens were produced, scanned, and fatigue tested until failure. The fracture surfaces have been investigated in order to find the location(s) for most probable point(s) of initiation. These data were then used to fit the proposed model parameters used to predict the point of initiation. Local weld geometry measurements were extracted from the predicted fracture initiation location(s) to analyse the correlation between local weld geometry and fatigue life. It was observed that fatigue life and leg length were positively correlated and that strong correlations exist between the individual geometrical parameters with regard to location of the fatigue crack initiation.

在当前的研究中，提出了一种基于连续几何测量来确定非承载角焊缝断裂起始位置的方法。使用Winteria®qWeld软件对焊接样品进行测量和焊接质量评估。生产了119个样品，进行了扫描，并进行了疲劳测试，直到失效。为了找到最可能的起始点的位置，已经对断裂面进行了研究。然后将这些数据用于拟合用于预测起始点的建议模型参数。从预测的断裂起始位置提取局部焊缝几何尺寸，以分析局部焊缝几何形状与疲劳寿命之间的相关性。