One of the main advantages of using composites in sandwich design is the possibility to tailor the material properties. The flexibility in the material selection for polymer composite sandwich structures in naval ship applications provides opportunities to optimize properties for various requirements. However, this freedom comes with a price in terms of increased complexity. This study presents considerations in the material selection process based on experience from the development of the composite sandwich structure for the 73 m Visby Class Corvette. The chosen material concept and structural design are based on carbon fiber-reinforced plastic-sandwich (CFRPS), which includes laminates made of non-crimp fabric reinforcement of carbon fiber with high ultimate tensile strain and vinyl ester. The laminates are separated by rigid foam core to increase the bending stiffness. This material concept fulfils the requirements of high survivability, high flexibility, and low operational cost. The use of non-crimp fabrics has proven to be a significant contributor to obtain laminates with high fiber content and thereby a lightweight design. In addition, a low surface weight of the different layers in the non-crimp fabric and the use of anisotropic laminates decrease the total structural weight.
Material selection considerations for polymer composite structures in naval ship applications
Journal of Sandwich Structures and Materials ; 7 , 5 ; 413-429
2005
17 Seiten, 3 Bilder, 6 Tabellen, 10 Quellen
Article (Journal)
English
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