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Brillouin Spectral Response Depending on Strain Non-Uniformity within Centimeter Spatial Resolution and its Application to Internal Damage Detection in Large-Scale Composite Structures

Shu Minakuchi1, Tadahito Mizutani1, Haruka Tsukamoto2, Mayuko Nishio2, Yoji Okabe3, Nobuo Takeda1

1 Department of Advanced Energy, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa-shi, Chiba, 277-8561, Japan
2 Department of Aeronautics and Astronautics, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
3 Department of Mechanical and Biofunctional Systems, Institute of Industrial Science, The University of Tokyo, 46-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan


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