History of aircraft_materials_r2010
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Transcript of History of aircraft_materials_r2010
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The History of Aircraft Materials
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The History of Aircraft Materials
Questions to answer in this module…
– What is the brief history of the materials used to construct aircraft?
– Why were these materials adopted?– Why did some materials replace others?– What is the future for materials in aircraft?
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1843 - Rubber
Charles Goodyear – Vulcanization
– Tires– Seals and gaskets
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1903 - First flight - Wright Brothers
Aluminum engine block
Spruce & steel wire structure
Fabric skin
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1903 - Wright Brothers
Why wood and wire structure? Why fabric skin?
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1903 – Aluminum Engine Block
Most internal combustion engines of the time were of cast iron construction
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1907 – Plastic
Leo Hendrik Baekeland – refines plastic production to create bakelite
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1915 – All Metal Airplane
Hugo Junkers
Steel tubing
Sheet iron skin
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1916 - Stressed Skin Construction
LFG Roland C.II
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Stressed-Skin Construction
Why stressed-skin?
Skeleton-like space frame
construction used for
non-stressed skin aircraft.
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1926 - Semi-Monocoque Construction
Ford Tri-motor
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Semi-Monocoque Construction
Cutaway view
semi-monocoque
construction
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1930’s – Increased Aluminum Use
Duralumin and Alclad
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1931 - Stainless Steel Construction
Budd BB-1 Pioneer
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Steel/ Stainless Steel vs. Aluminum
So why not build all aircraft out of stainless steel?
Corrosion resistance
Weight
Cost
Buckling failure
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1936 - Plastics Use Expands
Plexiglas
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1942 - Composites- Fiberglass
Cockpit components for war effort
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1940’s – 1950’s Superalloys
Before World War II iron based alloys were developed for high temperture work.
The war increased demand of performance materials for turbochargers and jets.
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1950-1963 - Titanium
The A-12 precursor to the SR-71
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1969 - Carbon Fiber Composites
Rolls-Royce RB211 jet turbofan engine
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1970 – Boron Fiber Composites
F-14 Tomcat
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1981 - Ceramics
Space Shuttle Thermal Protection Tiles
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1998 - Aluminum-Lithium
Space Shuttle external fuel tank
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2005- GLARE
“GLAss-Reinforced” Fiber Metal Laminate (FML)
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2009 – Boeing 787 Dreamliner
Large scale composite use
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Future- Intelligent Materials
Inbedded sensors and monitoring systems
Materials change properties and configurations
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Future- Nanotechnology
Ultra-strength Composites
Locally tailored materials for
specific requirements
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Summary
What is the brief history of the materials used to construct aircraft?
Why were these materials adopted? What is the future for materials in aircraft?