**I. PURE
TORSION**

In this chapter we will consider analysis of structural members under
pure torsion. The only exception appears in the discussion of
members in differential bending where cross-sectional warping is
prevented.
We begin with a review of mechanics of materials and discuss
torsion of members with circular cross sections. Both elastic and inelastic
stress states are considered for both homogeneous and non-homogeneous members.
We then proceed with the
elastic torsional analysis of members with solid or hollow non-circular cross sections.
This is followed by the elastic torsional analysis of thin-walled members with open
cross sections such as an I or a T. Next we examine the torsion of
thin-walled structures with closed cross sections.
We conclude this
section with the torsional analysis of multi-cell, thin-walled stiffened
members, typical of wing and fuselage structures.

I.1 *Torsion of
Circular Bars*
I.2
*Torsion of Non-Circular Bars*

I.3 *Elastic Membrane Analogy*

I.4 *Torsion of Thin-Wall Open Sections*

I.5 *Torsion of Solid Non-Circular Shapes and Thick-Wall Tubular Shapes
*

I.6 *Torsion of Thin-Wall Closed Sections*

I.7 *Torsion-Shear Flow Relations in
Multiple-Cell Closed Sections*

I.8 *Shear Stress Distribution and Angle of Twist for Two-Cell
Thin-Wall Closed Sections*

I.9 *Shear Stress Distribution and Angle of Twist
for Multiple-Cell Thin-Wall Closed Sections*

I.10 *Torsion of Stiffened Thin-Wall Closed Sections**
*

I.11 *Effect of End Restraint *

*
TEST Your Knowledge!**
*

To Main Page of TuPAS
To Index Page of Pure
Bending
*Date of last revision: *