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Different Materials used for building aircraft


Aircraft Material Properties 

High Quality

Light Weight

High strength to weight ratio

Corrosion Resistance

Unidirectional- means that one dimension, the length, is much larger than the others - width or height.


Various Materials Used for building aircraft spares: 

Wood

Steel

Aluminum alloys

Composite material


Wood 

The maintenance and restoration process of existing aircraft required a large supply of wood.

 Wood is used in aircraft because of its advantageous strength to weight ratio, workability, abundance, and low cost. 


Steel 

Steel has same weight-to-strength ratio of wood.

A steel fuselage uses tubes also as diagonals to carry the shear in compression or tension and the whole structure is then covered with fabric (light weight) to give it the required aerodynamic shape.

It must be noted that this method involves two techniques: steel work and fabric covering.


Composite Material 

 Composite materials have played a major part in weight reduction.

Advantages of using composites: - Thermal stability of composites. - High impact resistance - High damage tolerance - Fatigue, corrosion problems are virtually eliminated.


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Different materials used for building aircraft