Derivation of Torsion Formulas for Multiply Connected Thick-Walled Rectangular Sections

[+] Author and Article Information
J. Marshall

Department of Civil Engineering, University of Strathclyde, Glasgow, Scotland

J. Appl. Mech 37(2), 399-402 (Jun 01, 1970) (4 pages) doi:10.1115/1.3408519 History: Received June 16, 1969; Revised September 16, 1969; Online April 06, 2010


The paper presents an approximate theory leading to expressions relating torque, shear stress, and angle of twist for the torsion of multiply connected thick-walled rectangular hollow sections. Simple formulas are derived for singly connected sections which are shown to be reasonably accurate for design purposes. In the Appendix, a numerical example illustrates the application of the theory to a multiply connected section.

Copyright © 1970 by ASME
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