Irradiation Effect on the Inter-Laminar Shear Strength of GFRPs at Low Temperature

Yuichi TSUKAZAKI; Sigehiro NISHIJIMA; Tetsuya NISHIURA; Shu UENO; Fumio SAWA; Hideki MIYAMOTO; Toichi OKADA; Yuichi OHTANI; Akifumi IWAMOTO; Kiyoshi ASANO

doi:10.2221/jcsj.31.512

Yuichi TSUKAZAKI, Sigehiro NISHIJIMA, Tetsuya NISHIURA, Shu UENO, Fumio SAWA, Hideki MIYAMOTO, Toichi OKADA, Yuichi OHTANI, Akifumi IWAMOTO, Kiyoshi ASANO

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Keywords: GFRP, inter-laminar shear strength, low temperature, electron irradiation, reactor irradiation

JOURNAL FREE ACCESS

1996 Volume 31 Issue 10 Pages 512-517

DOI https://doi.org/10.2221/jcsj.31.512

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Abstract

The degradation of the inter-laminar shear strength (ILSS) of GFRPs was evaluated after electron irradiation at 77K and reactor irradiation at 20K. The GFRPs used in this study were prepared by varying matrix resins. Optical microscopic observation of the fracture surface was carried out to reveal the degradation behavior of the ILSS. The exposed fiber area of the fracture surface was found to depend on the absorbed dose. This suggests that a change in ILSS is induced by the interface failure between fiber and matrix as a result of the change in matrix resin.

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