報告題目: Health Diagnostics of Composite Structures Based on Ultrasonic Guided Waves

報告人：Yoji Okabe （University of Tokyo）

時間：2017年12月28日上午10:00~11:00

地點：明故宮校區18號樓529會議室

主辦單位:國際合作辦、校科協、機械結構力學及控制國家重點實驗室、航空宇航學院

報告簡介:

In recent years, lightweight composite structures have been applied to airplanes and automobiles. However, damages occurring inside the composite materials are too complex to be detected by conventional inspection methods. Hence, industries expect the practical realization of structural health monitoring (SHM) systems and the improvement of non-destructive inspection (NDI) techniques suitable for composite structures. For the health diagnostics of the composite structures, we are also developing SHM systems with optical fiber ultrasonic sensors and NDI techniques based on ultrasonic guided waves. In this presentation, I would like to introduce our recent research topics, such as a remote measurement of AE signals in composites using high-sensitive optical fiber sensors, SHM methods with Lamb waves for damage detection in CFRP structures, and application of laser ultrasonics and nonlinear ultrasonics to NDI of advanced composites in aerospace structures.

報告人簡介:

Yoji Okabe received Doctor of Engineering at the University of Tokyo in 2001. From 2003 to 2006, he was a lecturer in the Department of Aeronautics and Astronautics, School of Engineering, and since 2007 he has been an associate professor in Institute of Industrial Science, The University of Tokyo. He is interested in structural health monitoring and non-destructive inspection of composite materials.