疲労 (6)

[I-262] Fatigue crack detection in orthotropic steel deck bridges applied by FMC/TFM using reflected wave of multiple path

*Shigeyuki Hirayama¹, Masumi Murano¹, Hirokazu Karasawa², Tomonari Kodama², Hiromi Shirahata³, Masanobu Nagai⁴ (1. Shutoko Technology Center, 2. Toshiba Inspection Solutions Co., Ltd., 3. Tokyo City University, 4. Metropolitan Expressway Co., Ltd.)

Keywords:orthotropic steel deck, ultrasonic testing, phased array, synthetic aperture focusing technique, fatigue crack