TY - JOUR T1 - Influence of Seawater Ageing on Fracture of Carbon Fiber Reinforced Epoxy Composites for Ocean Engineering A1 - Le Guen-Geffroy,Antoine A1 - Davies,Peter A1 - Le Gac,Pierre Yves A1 - Habert,Bertrand AD - IFREMER Centre Bretagne, Marine Structures Laboratory, 29280 Plouzané, France AD - Direction Générale de l’Armement, IP/MCM/PMA, PC62, 60 boulevard du Général Valin, 75015 Paris, France UR - https://archimer.ifremer.fr/doc/00652/76410/ DO - 10.3390/oceans1040015 KW - composite KW - delamination KW - seawater KW - immersion KW - ageing N2 - Carbon fiber reinforced composite materials are finding new applications in highly loaded marine structures such as tidal turbine blades and marine propellers. Such applications require long-term damage resistance while being subjected to continuous seawater immersion. However, few data exist on which to base material selection and design. This paper provides a set of results from interlaminar fracture tests on specimens before and after seawater ageing. The focus is on delamination as this is the main failure mechanism for laminated composites under out-of-plane loading. Results show that there are two contributions to changes in fracture toughness during an accelerated wet ageing program: effects due to water and effects due to physical ageing. These are identified and it is shown that this composite retains over 70% of its initial fracture properties even for the worst case examined. Y1 - 2020/12 PB - MDPI AG JF - Oceans SN - 2673-1924 VL - 1 IS - 4 SP - 198 EP - 214 ID - 76410 ER -