Question

Torsional rigidity of rod is directly proportional to

Answer 1

Answer:

a given torque and a shaft, the torsional shear stress (within proportional/elastic limit) is DIRECTLY proportional to the radius of a shaft and NOT inversely proportional to the radius of a shaft. Note that the Polar moment of inertia is a constant.

Answer 2

Torsional rigidity of rod is directly proportional to one radian per unit length of the shaft

Explanation:

• Torque per radian twist is known as the torsional firmness (k),then               k = T θ = G*J* L. The parameter GJ is called torsional inflexibility of the shaft.
• Torsional inflexibility is additionally characterized as The torque required to deliver a turn of one radian per unit length of the shaft.
• Ability to stand up to bend beneath the activity of an outside torque is torsional inflexibility.