Partial Release and Relocking of a Frictionally Locked Crack Due to Moving Tensile Loads

[+] Author and Article Information
D. A. Mendelsohn

Department of Engineering Mechanics, Boyd Laboratory, The Ohio State University, Columbus, OH 43210-1181

K. H. Whang

Korea Institute of Machinery and Metals, Changwon, Kyungsangnamdo, Korea

J. Appl. Mech 55(2), 383-388 (Jun 01, 1988) (6 pages) doi:10.1115/1.3173687 History: Received June 24, 1987; Revised November 06, 1987; Online July 21, 2009


A finite length 2D crack is closed by remote compression followed by remote shear, and is sufficiently rough so that it remains locked with zero initial tangential crack-face shift. Then a pair of equal and opposite concentrated line loads acting in tension across the crack plane pass over the crack, causing partial opening and shift and then reclosure with residual (locked-in) shift and associated shear Stress Intensity Factors (SIF). Analytical and numerical solutions of the governing singular integral equations are used in studies of the mixed-mode transient and residual states for various coefficients of friction.

Copyright © 1988 by ASME
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