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Pursuing the Development of Lightweight, Highly-Reliable Aerospace Composite Structures

Advanced composite materials are extensively used in aerospace primary structures because of their high specific stiffness and strength. The damage tolerance of aerospace composite structures should be characterized since the damage mechanisms of advanced composite materials are extremely complicated in comparison to conventional metal materials. Pursuing the development of lightweight, highly-reliable aerospace composite structures, we are engaged in research that includes:
  • Interlaminar fracture toughness enhancement in composite laminates
  • Development of an evaluation method for interfacial properties between reinforcements and matrixes in composite materials
  • Fatigue properties of composite laminates


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DCB test of interlayer-toughened
composite with shape memory alloy wires


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Compressive fatigue test of
impact-damaged composite laminate

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Photoelastic interference fringes for interfacial debonding between wire and matrix in a model composite CT specimen

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Ultrasonic inspection of impact-induced
damage in a composite laminate


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Ultrasonic C-scan images for widthwise growth of free-edge delamination in a composite laminate under tensile fatigue loading


Aerospace Structural Systems Engineering Laboratory,
Department of Aeronautics and Astronautics, Faculty of Engineering, Kyushu University
Professor Nobuhide Uda
Assistant Professor Hiroto Nagai
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