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http://dx.doi.org/10.7234/kscm.2008.21.6.001

An Experimental Study on the Mechanical Properties of High Modulus Carbon-Epoxy Composite in Salt Water Environment  

Moon, Chul-Jin (경상대학교 대학원 항공공학과)
Lee, Cheong-Lak (한국항공우주산업(주))
Kweon, Jin-Hwe (경상대학교 기계항공공학부, 항공기부품기술연구소)
Choi, Jin-Ho (경상대학교 항공기부품기술연구소)
Jo, Maeng-Hyo (경상대학교 항공기부품기술연구소)
Kim, Tae-Gyeong (경상대학교 항공기부품기술연구소)
Publication Information
Composites Research / v.21, no.6, 2008 , pp. 1-7 More about this Journal
Abstract
The main objective of this study is to investigate the effect of salt water on the mechanical properties of a high modulus carbon-epoxy composite. Specimens were made of a carbon-epoxy composite UPN139B of SK Chemical and tested under inplane tension and shear after 0, 1, 3, 6, 9, and 12 months immersion in 3.5% salt water. Acceleration technique such as temperature elevation was not used. The tensile strengths and modulli in fiber and matrix direction did not show any remarkable degradation until 12 months immersion. In contrast to the tensile properties, shear strength and modulus started to gradually decrease up to about 10% of values of dry specimens after 12 months immersion. It was confirmed through the test that the material UPN139B can be an effective material for the shell structures in salt water to resist against the external pressure buckling because of the high fiber directional modulus and corrosion resistance.
Keywords
Carbon-epoxy; Mechanical properties; Salt water immersion test;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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