Fatigue Behaviour of Acrylic Matrix Composites: Influence of Seawater

Type Article
Date 2019-04
Language English
Author(s) Davies PeterORCID1, Arhant MaelORCID1
Affiliation(s) 1 : IFREMER Centre de Bretagne, Marine Structures Laboratory, 29280 Plouzané, France
Source Applied Composite Materials (0929-189X) (Springer Nature), 2019-04 , Vol. 26 , N. 2 , P. 507-518
DOI 10.1007/s10443-018-9713-1
WOS© Times Cited 31
Keyword(s) Acrylic, Fatigue, Immersion, Seawater

The recent introduction of liquid acrylic thermoplastic matrix resins which can impregnate fibre reinforcements using traditional infusion moulding offers significant potential for future composite structures in marine applications, such as marine energy devices. However, to date very few results are available to evaluate the long term durability of these composites in a marine environment. This paper describes results from a series of cyclic loading tests on glass and carbon fibre reinforced acrylic composites under both tension and four point flexural loading. Tests were performed before and after aging in natural seawater. The results were compared to results for a glass/epoxy used today in marine structures, and show a lower loss of both static and cyclic properties for glass/acrylic composites after seawater saturation. A carbon fibre reinforced acrylic composite was also tested. This showed excellent properties in tension, but poor out-of-plane properties due to manufacturing defects.

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