Airplane Material
Lecture based on Materials (Book: The science of strong materials, Penguin Publishers.)
The aeronautical journal (Library can order for you), one article written in 1996, by Peal,
I.J.Mocolm. Ceramic Science, pg 123-131. (Relevant to exam)
There are two key reasons for using thermoplastic composites: * save time & handling costs in production * eliminate labour-intensive riveting & bonding * can produce large profile sections that are some 20 % lighter than metal & alloys. * materials are exceptionally stiff and can tolerate vibrations
A380 (largest passenger plane) - 25 % of the structure & components are composites. And in the next generation of aircraft, the content of composites will double.
A350 is expected to take off for the first time in 2011 with over 50 % of its total weight made up of fibre-reinforced composite materials.
The Dreamliner, Boeing 787 – 50% of the components are produced from composite materials.
Airbus itself manufacture ribs, stiffeners and other elements from the PPS composites. The individual components are welded together to form a strong, inseparable unit. This process eliminates the need for costly drilling & riveting operations & achieves higher strength and safety – reducing weight & saves time and money.
Components made from PPS composites remain hard, impact-resistant, stiff & stable, even when exposed to high temperatures. PPS is also resistant to aviation fuel, engine and hydraulic oils, solvents and antifreezes. A very precise welding method in which the components are only welded at the points where it is necessary, meeting very high safety standards.
Wings
One of the most important part is the wing, they have to be RIGID to help lift. If they are not rigid they will bend increasingly across the wing. The aeroplane moving forward causes the air to move over & under the wing, giving a lift, the lift is greatest at the tips of the wings. As aircraft
The aeronautical journal (Library can order for you), one article written in 1996, by Peal,
I.J.Mocolm. Ceramic Science, pg 123-131. (Relevant to exam)
There are two key reasons for using thermoplastic composites: * save time & handling costs in production * eliminate labour-intensive riveting & bonding * can produce large profile sections that are some 20 % lighter than metal & alloys. * materials are exceptionally stiff and can tolerate vibrations
A380 (largest passenger plane) - 25 % of the structure & components are composites. And in the next generation of aircraft, the content of composites will double.
A350 is expected to take off for the first time in 2011 with over 50 % of its total weight made up of fibre-reinforced composite materials.
The Dreamliner, Boeing 787 – 50% of the components are produced from composite materials.
Airbus itself manufacture ribs, stiffeners and other elements from the PPS composites. The individual components are welded together to form a strong, inseparable unit. This process eliminates the need for costly drilling & riveting operations & achieves higher strength and safety – reducing weight & saves time and money.
Components made from PPS composites remain hard, impact-resistant, stiff & stable, even when exposed to high temperatures. PPS is also resistant to aviation fuel, engine and hydraulic oils, solvents and antifreezes. A very precise welding method in which the components are only welded at the points where it is necessary, meeting very high safety standards.
Wings
One of the most important part is the wing, they have to be RIGID to help lift. If they are not rigid they will bend increasingly across the wing. The aeroplane moving forward causes the air to move over & under the wing, giving a lift, the lift is greatest at the tips of the wings. As aircraft