期刊论文

Wang, HH

英文

Journal of Constructional Steel Research

0143-974X

2024

215

108532

10.1016/j.jcsr.2024.108532

CRediT authorship contribution statement Naiwei Lu: Conceptualization, acquisition, Investigation, Writing – original draft. Honghao Wang: Data curation, Formal analysis, Investigation, Visualization, Writing – original draft. Jing Liu: Investigation, Visualization. Yuan Luo: Visualization, Writing – review & editing. Yang Liu: Supervision, Writing – review & editing. Acknowledgments The funding for the project, provided by the National Key Research and Development Program of China (2021YFB2600900), the National Science Foundation of China (grant number 51908068 and 52178108), the Natural Science Foundation of Hunan Province (grant number 2021JJ30720 and 2023JJ50180), Research Foundation of Education Bureau of Hunan Province(23B0575), Postgraduate Scientific Research Innovation Project of Hunan Province(QL20230203)，and the Science and Technology Innovation Program of Hunan

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Fatigue cracking in welded joints is a critical problem in bridge engineering, especially for aging long -span steel bridges. The crack size and density are increasing gradually with the bridge aging process, where the crack interaction will accelerate the crack propagation or even short cracks merging into a long crack. However, the mechanism underlying the coupled propagation behavior of multiple cracks remains unclear. In this study, the coupling effect of multiple cracks was investigated based on numerical simulations. Subsequently, the numerical result was verified by a full-scale segment...