The Thermoelastic Patch Contact Problem for Large Peclet Number

[+] Author and Article Information
S. R. Kilaparti

Illinois Institute of Technology, Chicago, Ill.

R. A. Burton

The Technological Institute, Northwestern University, Evanston, Ill.

J. of Lubrication Tech 100(1), 65-69 (Jan 01, 1978) (5 pages) doi:10.1115/1.3453114 History: Revised March 18, 1977; Received June 21, 1977; Online October 20, 2010


An equation in the form of a Fourier series was derived in an earlier study to give displacements of the originally straight edge of a plate as the result of a small heat input patch moving at speed c along that edge. That unwieldly formulation is reduced to a simple integral equation, which is shown to be manageable in an example calculation. The integral equation is shown to be closely related to that of Ling and Mow, although it is much simpler to use. Comparison of the results of the simplification to results of the original series formulation suggest that the equation proposed for “high Peclet number” may be a valid approximation for Peclet number as low as 2.5 = Pel = cl/πk, and l is the width of the patch of heat input, k is the thermal diffusivity of the material.

Copyright © 1978 by ASME
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