PREVENTION OF CRACK PENETRATION BETWEEN STOP-HOLES BY ICR TREATMENT UNDER PLATE BENDING
Risa MATSUMOTO, Toshiyuki ISHIKAWA, Shigeaki TSUKAMOTO, Hirotaka KAWANO
In the previous study, it has been clarified that stop-holes drilled at tips of crack initiated at welded toe between steel deck plate and vertical stiffener promote crack initiation between stop-holes at the upper side of deck plate. In this study, to prevent the crack initiation at the upper side of deck plate, crack initiated at weld toe of deck plate is closed by ICR treatment. Furthermore, the prevention effect on crack initiation between stop-holes at the upper side of the deck plate was clarified by bending fatigue tests and FE analysis.
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