The Effect of a Stringer on the Stress in a Cracked Sheet

[+] Author and Article Information
Robert Greif

AVCO Corp., Research and Advanced Development Division, Wilmington, Mass.

J. L. Sanders

Harvard University, Cambridge, Mass.

J. Appl. Mech 32(1), 59-66 (Mar 01, 1965) (8 pages) doi:10.1115/1.3625784 History: Received September 30, 1963; Online September 15, 2011


An infinite stringer is assumed to be continuously attached to a sheet along a line perpendicular to a finite crack. At a great distance from the crack, the sheet is under a uniform tensile stress parallel to the stringer. The plane-stress solution for this problem is carried out by using the complex variable approach of Muskhelishvili to derive an integral equation which is then solved numerically on the IBM 7090 computer. In particular, the effect of the stringer on the strength of the stress singularity at the crack tip, and the maximum load-concentration factor in the stringer are found.

Copyright © 1965 by ASME
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