On the Singular Eigenfunctions for Plane Harmonic Problems in Composite Regions

[+] Author and Article Information
G. B. Sinclair

Department of Mechanical Engineering, Carnegie-Mellon University, Pittsburgh, Pa. 15213

J. Appl. Mech 47(1), 87-92 (Mar 01, 1980) (6 pages) doi:10.1115/1.3153644 History: Received May 01, 1978; Revised September 01, 1979; Online July 21, 2009


This paper is concerned with the singular behavior of harmonic functions at the vertex of a plane, composite, wedge region. Separable harmonic functions which include logarithmic terms are investigated for their possible existence in the vicinity of the vertex. The eigenequations governing existence are examined and explicit determination of the singular eigenvalues made for several combinations of boundary and interface conditions. The results enable an appreciation of the possible singular nature in such problems which aids any complete (numerical) analysis.

Copyright © 1980 by ASME
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