A novel optical technique for observation of global particle distribution in toughened composites |
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| Authors: | Hao-Ming Hsiao Chih-Nan Ni Ming-Dao Wu Chiao-Wen Lin |
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| Affiliation: | 1. Department of Civil Engineering, Zhejiang University, Hangzhou 310058, China;2. State Key Lab of CAD & CG, Zhejiang University, Hangzhou 310058, China;3. School of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, China;4. Department of Engineering Mechanics, Zhejiang University, Hangzhou 310027, China;5. Department of Civil Engineering, University of Siegen, Siegen 57068, Germany;1. School of Mechanical Engineering, Tianjin University of Science and Technology, Tianjin, China;2. Department of Mechanical Engineering, University of Memphis, Memphis, TN 38152, USA;3. Department of Orthopaedic Surgery, Inova Hospital, Falls Church, VA 22042, USA;1. Department of Aeronautics, College of Engineering, Kanazawa Institute of Technology, 7-1 Ohogigaoka, Nonoichi, Ishikawa Pref. 921-8501, Japan;2. Strength Research Department, Technical Institute, Kawasaki Heavy Industries, Ltd., 1 Kawasaki-cho, Akashi City, Hyogo Pref. 673-8666, Japan;3. Department of Mechanical Engineering and Science, Kyoto University, Sakyo-ku, Kyoto City, Kyoto Pref. 606-8501, Japan;1. Dean of Student Affairs, American University of Madaba, P.O. Box 2882, Amman, Jordan;2. Civil Engineering Department, Jordan University of Science and Technology, P.O. Box 3030, Irbid, Jordan |
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| Abstract: | One promising approach to improving fracture toughness is interleaved toughening. Past observations of toughened particles have typically been conducted using the optical microscope; however, such an approach may not be able to provide a 3-D, birds-eye view of how the toughened particles are distributed on a composite interlaminar surface. In this paper, we developed a simple yet novel optical technique for observing global particle distribution on a composite laminate surface. IM7/8551-7, a material used for the fan blades of the GE90, the world’s most powerful commercial aircraft jet engine, was used to demonstrate the strength of our optical technique, which produces high-quality morphological information. High-GIC laminate had more uniform and denser particle distribution with a smaller particle size, whereas low-GIC laminate had larger, but far less toughened particles. The same optical technique can also be used on other particle-toughened composite systems. |
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