Circular and Square Bars
Subjected to a Torque, T
A new car engineer notices that solid square steel rods are less expensive per pound to purchase than solid circular steel rods. He thinks he can save the company money by specifying square rod for the drive shafts in all vehicles.
What is known:
- Each rod has the same cross sectional area, A.
- The same torque, T, is applied to both rods.
- The material shear modulus is not given bit both rods are the same material.