Answer:
A) The minimum required diameter of the brass shaft D₁ = 0.00176 m
B) The minimum required diameter of the aluminium shaft D₂ = 0.00142 m
Step-by-step explanation:
Data:
A compound shaft has two segments made of brass and aluminium
Allowable shear stress of Brass = 69 MPa.
allowable sheer stress of Aluminium = 86 MPa.
Torque TC = 23900 N-m
Find: Minimum required diameter of the brass D₁ and Auminium D₂
Solution: see attached picture for workings that shows the break down of the minimum diameter for each segment of the shaft.