非破壊評価

[I-262] Detection of fatigue cracks in out-of-plane gusset welds by ultrasonic flaw detection from the coating film

*SUYANG CHEN¹, HIROMI SHIRAHATA¹, SHIGEYUKI HIRAYAMA², DAISUKE UCHIDA³, AYAKA NAGATA¹ (1. Tokyo City University, 2. Shutoko Technology Center, 3. Hosei University)

Keywords:steel bridge, fatigue cracks, ultrasonic detection, coating film