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J. Ocean Eng. Technol. 1997;11(4):23-30.    

Effect of Water Environment on the Mechanical Properties of Unidirectional CFRP
일방향 탄소섬유강화 복합재료의 기계적 성질에 미치는 수 환경의 영향
손선영,김재동,고성위
부경대학교 대학원,경상대학교 해양과학대 해양산업연구소,부경대학교 제어계측공학과
Copyright © 1997 The Korean Society of Ocean Engineers     Open access / Under a Creative Commons License
Key Words: CFRP, Saturation moisture concentration, Diffusion coefficient, Flexura strength, Tensile strength
핵심용어: 탄소섬유강화플라스틱복합재료, 포화수분함량, 확산계수, 굴곡강도, 인장강도
Abstract
The purpose of this paper is to investigate the water environmental effect on the mechanical properties of carbon fiber/epoxy composites. Moisture concentration absorbed in CFRP under various water environment was calculated and degradation of mechanical properties for each wet composite laminates is investigated by performing the flexual and tensile test. The results show that moisture absorption is accelerated in higher temperature environment and under the same temperature sea water environment prompts more absorption than fresh water. As increasing the water temperature and moisture concentration tensile and flexual strength decreased as much as 25%-40% compared with dry condition.


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