Thermal fatigue effects on the gas leakage characterisation of thin-ply carbon fibre composites

Song, Junyao, Wang, Zhenzhou, Bailey, Wendell and Jalalvand, Meisam (2024) Thermal fatigue effects on the gas leakage characterisation of thin-ply carbon fibre composites. 21st European Conference on Composite Materials, Cite des Congres, Nantes, France. 02 - 05 Jul 2024. 7 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

Carbon fibre reinforced polymers (CFRPs) stand out as a preferred material for liquid hydrogen storage in the future. However, the hydrogen leakage caused by micro-cracking is limiting their application. In this study, thin-ply CFRP laminates with different ply thickness were selected due to their potential of high cracking resistance. The leak rate tests with helium after 0, 2, 5, 10, 15 times of thermal cycling were conducted. The results indicate that there was no explicit leak rate increase after 15 times of thermal cycling between 77 K and room temperature. It may suggest that the selected thin-ply materials shown promising leakage resistance.

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