Observations on the damage behaviors of corrosion fatigue in steel strands based on image analysis:

摘要

In this work, the corrosion behaviors of steel strands exposed to acidic rain under alternating stress, static stress, and no stress were modeled based on experimental data. The results are based on an image corrosion feature analysis of steel strands at different corrosion times and operating conditions, and the corrosion fatigue behaviors indicate that the steel strands display different degrees of corrosion under different loading conditions. The corrosion fatigue behaviors of the steel strands were analyzed based on the corrosion features in the images of the steel strands subjected to different corrosion times and operating conditions. The results showed that different loading conditions lead to different degrees of corrosion in the steel strands. The samples’ surface images and corrosion damage continuously changed as the corrosion time increased. Given the same corrosion time, the degree of corrosion was the highest in samples subjected to alternating stress, followed by that in samples under stati...