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论文类型：期刊论文

发表时间：2022-06-29

发表刊物：材料工程

期号：12

页面范围：29-33

ISSN号：1001-4381

摘要：With the specific nominal mean stress, considering the real operating situations of welded joints, the model for fast assessing the fatigue parameters and the residual fatigue life, was established by the infrared thermographic technique, realizing the fatigue performance evaluation of inhomogeneous welded joints using quantitative thermographic method. The damage evolution status was qualitatively analyzed by monitoring the hot-spot variation on the welded joint surface. The results show that limitations of the traditional method are avoided, and that fatigue behavior parameters of inhomogeneous welded joints can be determined fast and accurately by quantitative thermographic method. Moreover, it is proved to be an effective way for health detection resorting to the hot-spot variation detected real-timely during the fatigue process.

备注：新增回溯数据