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The blade is composed of an outer surface and an inner spar. The spar is 0.02 meters thick and the outer surface is of varying thickness. A table containing the material properties of the two parts is below. Structural steel will be used for both the blade and the spar.


Spar Outer

Surface Wind Blade

Young's Modulus (Pa)

2e11

2e11

Poisson's Ratio

0.30

0.30

Thickness (m)

0.02

0.03 - 0.00048485*X

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