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.
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