The drive shaft AB of an automobile is to be designed as a thin-walled tube. The engine

Question:

The drive shaft AB of an automobile is to be designed as a thin-walled tube. The engine delivers 150 hp when the shaft is turning at 1000 rev>min. Determine the minimum thickness of the shaft€™s wall if the shaft€™s outer diameter is 2.5 in. The material has an allowable shear stress of Ï„_allow= 7 ksi.