Effect of Void Content on the Mechanical Properties of GFRP for Ship Design

Defects such as voids in composite materials often degrade the mechanical properties of laminates. Even if these are manufactured based on design requirements, there is a possibility instability occurring structures. In this study, several prototypes were developed changes ship conditions (glass fiber weight fraction and fabric combination type) using hand lay-up approach. The fabrication quality was quantitatively defined burn-off test, statistical analysis performed. A chopped strand mat woven roving material laminates possessed relatively less void content entire glass (Gc) region (30–70 wt%) compared to single-material laminate. effect more pronounced high-Gc (50–70 than that normal-Gc (30–50 wt%). hull plate can be designed seamlessly according quality. To ensure safety, thickness laminate must greater specified ISO standards, regardless type region. As result considered, flexural strength single decreased by 15.02%. Furthermore, 3.33% calculation combined rules. Thus, CSM thicker combined-material with same Gc, while considering properties.