Question

Calculate the mass(in metric tons ) of a blade of aluminum ,mal blade ,setting the stress limit equal to fatigue limit of the material ,sigma 0 Al=150Mpa

Answer 1

Answer:

Calculate the mass (in metric tons) of a blade made of Aluminum, M?Al?blade , setting the stress limit equal to fatigue limit of the material 66-88 %, ?Al0=150MPa, density Al=?2700?Kg/m^3, L=?87 m

M blade (Al) = Ao*l*rho_AL

 

 

Ao AL=[(2*A flaps)+(2*A edge)]

 

A edge=[(Rho mat*g*L^2)/(St edge*ho edge-rho mat*g*L^2)]*Aflaps

 

 

assuming basic condicions

 

g=10 m/s^2,optmal wind speed = 11 m/s,

Explanation: