Advanced Mechanics of Materials and Applied Elasticity, 6th Edition

Chapter 6. Torsion of Prismatic Bars

6.1 Introduction

In this chapter, consideration is give to stresses and deformations in prismatic members subject to equal and opposite end torques. In general, these bars arne assumed to be free of end constraint. Usually, members that transmit torque, such as propeller shafts and torque tubes of power equipment, are circular or tubular in cross section. For circular cylindrical bars, the torsion formulas are readily derived by employing the method of mechanics of materials, as illustrated in the next section. In Sec. 6.6.2, we will observe that a shaft having a circular cross section is most efficient compared to a shaft having an arbitrary cross section.

Slender members with other-than-circular cross ...