Question

Calculate the mass (in metric tons) of a blade made of Aluminum, MAlblade , setting the stress limit equal to fatigue limit of the material, σAl0=150MPa. Hint: Use the expressions you have derived in question 3. and 6. to calculate Aflap0 and Aedge0. Insert these material cross sections in eq. 6, with rhomat=rhoAl

Answer 1

Answer:

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Answer 2

Calculating the mass of a blade made of Aluminum in metric tons

Explanation:

A _0 ^flap =  81 * 8π * σ_0^ flap * h _0^ flap * ρair * V  * r² * L³

σ_0^ flap = 150 * 10^6

Calculate A _0 ^edge and σ_0^edge = 150 * 10^6

M = 2* (A _0 ^flap + A _0 ^edge) * 86 * 2700

To convert M to metric tons, we do M/1000, which will be the final answer.