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Physics Presentation - Carbon Fibre in F1
Transcript of Physics Presentation - Carbon Fibre in F1
(CFRP) Main Competition Aluminum The Young's Modulus of Aluminium is 69 GPa Stress, Strain and Youngs Modulus The Ultimate tensile Strength of Aluminium is 100Mpa
The yield stress of Aluminium is 95 MPa The strain that would be placed on the Aluminium with a youngs modulus of 95 GPa can be worked out via:
Strain = Stress/youngs modulus
Strain = 0.095x10 /69x10
Strain = 0.1376811594 or 0.14 (2 dp) 9 9 The youngs modulus of Carbon Fibre is 249% greater than that of Aluminium Weight The density of Aluminium is 2.7g/cm 3 Therefore 1 cubic meter of Aluminum weighs:
Mass = 0.0027 x 1000000
Mass = 270kg Aluminium weighs 50% more than Carbon Fibre Aluminium will bend a lot before it breaks Other properties which could make Aluminium superior Aluminium is malleable Aluminium has a very high melting point Aluminium is easier to work with Properties which make Aluminum worse for F1 than Carbon Fibre Aluminium will bend or yield under a small forces causing distortion Constant flexing of Aluminium can cause it to become brittle It is heavier Carbon Fibre - Microscopic Properties Structure of Carbon Fibre Microstructure of Carbon Fibre Manufacture Moulding Vacuum Bagging This process is used when few copies are needed (1-2) Compression Moulding This method is the fastest method of producing Carbon Fibre reinforced polymer items Filament Winding only used for complex or convoluted shapes Stress, Strain and Young's modulus of CFRP The young's modulus of Carbon Fibre reinforced Polymer is: 9 2.48x10 /1.1 = 230GPa - to 2 significant figures High Strength High Modulus 1.79x10 /0.5 = 370GPa - to 2 significant figures 9 Ultra-High Modulus 1.03x10 /0.20 = 520GPa - to 2 significant figures to 1.31x10 /0.20 = 620GPa - to 2 significant figures 9 9 Macroscopic Properties Strength to weight ratio Fatigue Resistance Thermal Conductivity Coefficient of Thermal Expansion History Thanks for Listening 6 9