An Overview Of Aerospace Industry Essay

1289 Words Nov 29th, 2016 6 Pages
1.1 Overview of aerospace industry
Globally, 3.57 billion passengers travelled on aeroplanes during 2015 and the demand for air travel is predicted to keep rising.1 As the frequency of air travel is increasing, it places a pressure on the aerospace industry to improve material performance and the efficiency of their transportation.2 Classically aircraft were constructed from metallic materials such as aluminium and titanium. Therefore, new materials must have specific properties and characteristics that the metallic materials possess, but in addition, present further beneficial properties. Aeronautical materials must possess a high Young’s modulus to prevent shape deformation under stress, high resistance to chemical and thermal degradation, high glass transition temperature (Tg), impact strength, amongst numerous others which are more task specific.3 Advancements in polymer chemistry have resulted in a large number of aircraft moving from metallic materials to composite for their primary structures. The definition of a composite states that it is a new material with superior structural properties, which is formed from two or more materials that differ in physical and mechanical behaviour. The superior structural properties are not present in the individual components from which the composite is constructed.4 High-performance composites used in the primary structures of aircraft are carbon fibre reinforced plastics (CFRP). CFRP’s are mainly used in high-tension loaded…

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