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説明:

We conducted an in situ study on CFRP fracturing process using atomic-force-microscopybased stress-sensitive indentation. Tensile stress distribution during fracture initiation and
propagation was directly observed quantitatively. It led to a discovery that previously believed
catastrophic fracture of individual carbon fiber develops in a controllable manner in the
polymer matrix, exhibiting 10 times increase of fracture toughness. Plastic deformation in
crack-bridging polymer matrix was accounted for the toughening mechanism. The model
was applied to explain low temperature strength weakening of CFRP bulk material when
matrix plasticity was intentionally ‘shut down’ by cryogenic cooling.

権利情報:

• Creative Commons BY Attribution 4.0 International
  

  Creative Commons BY Attribution 4.0 International

キーワード: Stress, AFM, indentation, CFRP

刊行年月日: 2020-01-31

出版者: Informa UK Limited

掲載誌:

• SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS (ISSN: 14686996) vol. 21 issue. 1 p. 267-277

研究助成金:

原稿種別: 出版者版 (Version of record)

MDR DOI:

公開URL: https://doi.org/10.1080/14686996.2020.1752114

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更新時刻: 2024-01-05 22:12:21 +0900

MDRでの公開時刻: 2023-03-02 10:14:41 +0900