Phased Array Ultrasonic Application for Defects Estimation of FRP Box Member
2010
Kwak, K.H., Wonkwang University, Iksan, Republic of Korea | Yang, D.W., Hanyang Corporation, Seoul, Republic of Korea | Kim, H.S., Wonkwang University, Iksan, Republic of Korea | Lee, H.H., Wonkwang University, Iksan, Republic of Korea | Yun, K.H., Wonkwang University, Iksan, Republic of Korea
The structural material with the highest possibility of new materials that will be used in the future construction field is fiber reinforced polymer. The current studies on FRP members by using such excellent material characteristics mostly focused on stability, composite problem, and durability of FRP members. The initially constructed FRP members secure excellent stability and durability compared to reinforced concrete and steel materials, but measures for defections during the periodical inspection, methods for detecting breakages, and maintenance and reinforcement are not insufficient. Accordingly, this study proposed a measurement system using the FRP sensor to evaluate the safety of the FRP modular box member, and applied the phased array ultrasonic technique to detect the defects and damage likely to occur during the performance period.
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