A Torsional Contact Problem for an Indented Half-Space

[+] Author and Article Information
R. Y. S. Pak, F. Abedzadeh

Department of Civil, Environmental and Architectural Engineering, University of Colorado, Boulder, CO 80309-0428

J. Appl. Mech 63(1), 1-6 (Mar 01, 1996) (6 pages) doi:10.1115/1.2787198 History: Received March 14, 1994; Revised November 04, 1994; Online October 26, 2007


This paper is concerned with the torsion of a rigid disk bonded to the bottom of a cylindrical indentation on an elastic half-space. By virtue of Fourier sine and cosine transforms, the mixed boundary value problem in classical elastostatics is shown to be reducible to a pair of integral equations, of which one possesses a generalized Cauchy singular kernel. With the aid of the theory of analytic functions, the inherent fractional-order singularity in the contact problem is rendered explicit. Illustrative results on the torsional stiffness of the base of the indentation and the corresponding contact stress distribution are presented for engineering applications.

Copyright © 1996 by The American Society of Mechanical Engineers
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