A Study about Mechanical Properties of GFRP Laminates depending on Fiber Volume Fraction

섬유체적함유율의 영향에 따른 GFRP적층판의 기계적 특성에 관한 연구

Domestic small and medium ship companies have lack of leisure boat technologies and especially they have a problem about its low performance because of the overweight of boat hull. So it is necessary to have alternative manufacturing process to improve the mechanical properties of composite material. In this study, a vacuum curing system was developed as an alternative manufacturing process and then changed the fiber volume fractions of GFRP laminates. The properties of GFRP laminates such as void contents, Young's modulus and fracture toughness were determined for various fiber volume fractions.