engleski

Novel Applications of Piezoelectric Materials in Aerospace Engineering

Aerospace materials are materials used in aeronautical engineering and also spacecraft engineering. These materials require exceptionally high and flawless performance, often high strength and fatigue resistance, heat resistance, reliability and durability, while the cost is often not a limiting factor. The most widely used materials in aerospace are alloys and composites. Many modern alloys (aluminium, titanium, nickel alloys and steels) are being developed and improved to accommodate increased requirements of modern aerospace vehicles. Besides, carbon fibre composite materials are commonly used nowadays in manufacturing different aerospace components. On the other hand, it is less known that many novels and advanced ceramic materials find also their applications in aerospace engineering. Piezoelectric effect converts the deformation in electrical energy or vice-versa. The research for piezoelectric materials in the aeronautical field is promising, even though the aeronautical industry gives preference to more tested materials, in which failures are well-known. This paper presents the modern applications of piezoelectric ceramics in aerospace for the damage detection in laminated composite materials, controlling the shape of composite material parts and for the possible development of piezoelectric wind turbine blades, which would bend when hit by wind. The experimental applications nowadays mostly include drones and non-conventional energy projects. The outlook of these technologies in commercial passenger aircraft is expected within the next decade.

ceramics ; piezoelectric ; aerospace ; aeronautics

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