On the Axial Rigidity of a Perforated Strip and the Strain Energy Release Rate in a Centrally Notched Strip Subjected to Uniaxial Tension

[+] Author and Article Information
R. G. Forman

Aeronautical Systems Division, Wright Patterson AFB, Dayton, Ohio

A. S. Kobayashi

Mechanical Engineering, University of Washington, Seattle, Wash.

J. Basic Eng 86(4), 693-697 (Dec 01, 1964) (5 pages) doi:10.1115/1.3655922 History: Received June 14, 1963; Online November 03, 2011


This paper presents theoretical studies on the axial rigidities in strips with circular and elliptical perforations and subjected to uniaxial tension. Greenspan’s original derivations on these axial rigidities [2] were improved by using the elasticity solutions by Howland [6] and Ishida [7] for infinite strips with circular and elliptical perforations, respectively. Finally, the correction factors for centrally notched strips subjected to uniaxial tension were rederived from the above results following the energy approach by Irwin and Kies [3].

Copyright © 1964 by ASME
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