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1948 Hakim S Sultan Alibori excellent fire resistant properties [2]. The major structural application for fibre- reinforced composites are in the field of military for which weight reduction is critical for higher speeds and increased payloads. Because composites are strong, durable and damage tolerant, they have become an increasingly attractive alternative to metal for many aircraft components. The aircraft industry has found that proper use of these fibres reinforced composite offers the potential for reducing the weight as much as 50 percent. The shaping(forming) of composite material product is a difficult task to make and therefore is expensive. Raytheon Starship 2000(Fig 8)has all composite rames. Major joints are still metal Figure 7: Advanced Lightweight Figure 8: Using Composite Material in Composite Structures( Carriage and Aerospace Application Launch of rockets Marine applications In recent years, glass fibre-reinforced polyester laminates and Kevlar 49 have found use in marine applications. Among the application areas are boat hulls, decks bulkheads, frames and some other parts. The principal advantage here is also weight reduction, which translates into higher cruising speed acceleration and fuel efficiency Other advantages are increased stiffness, increased damage resistance, durability and ease of handling. Other applications of Kevlar 49 are manufacturing of the hulls of both large and small racing sailboats where the light weight increases speed, provides optimum weight distribution and facilitates portability. It is also used in the manufacturing of hulls and decks of small fishing boats. One of the most common types of layered composite failure is de-lamination and de-bonding of one layer from another(see Fig 9 Design and construct of Sun-boat composite structures were created and tested on computer. The 11.3m(37) 5.5m(18)tri-hulled boat is powered by the energy generated from 1728 solar cells. Construction of the boat involved sophisticated construction methods and has resulted in a boat of great strength, light weight and1948 Hakim S. Sultan Aljibori excellent fire resistant properties [2]. The major structural application for fibre￾reinforced composites are in the field of military for which weight reduction is critical for higher speeds and increased payloads. Because composites are strong, durable and damage tolerant, they have become an increasingly attractive alternative to metal for many aircraft components. The aircraft industry has found that proper use of these fibres reinforced composite offers the potential for reducing the weight as much as 50 percent. The shaping (forming) of composite material product is a difficult task to make and therefore is expensive. Raytheon Starship 2000 (Fig.8) has all composite frames. Major joints are still metal. Figure 7: Advanced Lightweight Composite Structures (Carriage and Launch of rockets. Figure 8: Using Composite Material in Aerospace Application. Marine Applications In recent years, glass fibre-reinforced polyester laminates and Kevlar 49 have found use in marine applications. Among the application areas are boat hulls, decks, bulkheads, frames and some other parts. The principal advantage here is also weight reduction, which translates into higher cruising speed acceleration and fuel efficiency. Other advantages are increased stiffness, increased damage resistance, durability and ease of handling. Other applications of Kevlar 49 are manufacturing of the hulls of both large and small racing sailboats where the light weight increases speed, provides optimum weight distribution and facilitates portability. It is also used in the manufacturing of hulls and decks of small fishing boats. One of the most common types of layered composite failure is de-lamination and de-bonding of one layer from another (see Fig 9) Design and construct of Sun-boat composite structures were created and tested on computer. The 11.3m (37') x 5.5m (18') tri-hulled boat is powered by the energy generated from 1728 solar cells. Construction of the boat involved sophisticated construction methods and has resulted in a boat of great strength, light weight and
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