Hybrid composite hull panels fabricated using vacuum bagging techniques

Abstract

Approved marine grade orthophthalic polyester, POLYLITE® 440-M850, resin and E-glass 300 and 450 g/m2 CSM & 400 and 600 g/m2 woven roving layers are the constituent components of the hybrid laminated composite hull panels. The enhanced composite panel is to be fabricated using vacuum bagging techniques. Tests are conducted in accordance with ISO 527-4, ASTM D3410, ASTM D790 standard testing methods to obtain the relevant material properties. This characterisation shows that the resulting composite panel, when compared to the traditional boat building hand lay-up technique, is one of superior mechanical properties, which is more efficient and fit for purpose. The weight percentage reinforcement originally within 35–40% is expected to rise to 50–60%, producing a high fibre content laminate with thickness reductions in the order of around 40%. As a consequence the material properties, namely young’s modulus, ultimate tensile and compressive strength, flexural stress and modulus are enhanced.