Concurrent multi-scale fatigue damage evolution simulation method for long-span steel bridges
Source abstract
Abstract
Fatigue damage is one of the leading causes for structural failure of long-span steel bridges, but fatigue damage evolution of a long-span steel bridge is very complex. This study proposes a concurrent multi-scale fatigue damage evolution simulation method for long-span steel bridges from micro short crack nucleation and growth to macro structural component damage until mega structural failure. As a case study, the fatigue damage evolution of the Stonecutters Bridge in Hong Kong under cyclic vehicle loading is finally simulated using the proposed method. It shows that the proposed method is computationally feasible even for such a large scale structure. The method can provide a clear picture how micro short cracks grow into macro fatigue damage of structural components and eventually lead to mega structural failure.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Fatigue and fracture mechanics · Structural Load-Bearing Analysis · Structural Health Monitoring Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Engineering Mechanics and Jiangsu Key Laboratory of Engineering Mechanics, Southeast University, Nanjing, China
Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong, China
Department of Bridge Engineering, College of Civil Engineering, Tongji University, Shanghai, China
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