Torsion of Circular Section
Recitation #6 October 14, 2003
TORSION OF CIRCULAR SECTIONS
Assumptions
1) This analysis can only be applied to solid or hollow circular sections
2) The material must be homogeneous
3) Torque is constant and transmitted along bar by each section trying to shear over its neighbour.
4) Transverse planes remain parallel to each other.
Examine the deformation of a length dx between two transverse planed of a beam with an applied torque T.
For this element, assume the left end is fixed and the right end rotates by d due to the applied torque.
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