A Photoelastic Study of Stress Concentration Factors at a Doubly Symmetric Hole in Finite Strips Under Tension

[+] Author and Article Information
Y-F. Cheng

Solid State Physics Laboratory, Boeing Scientific Research Laboratories, Seattle, Wash.

J. Appl. Mech 35(1), 188-190 (Mar 01, 1968) (3 pages) doi:10.1115/1.3601148 History: Received March 31, 1967; Revised August 16, 1967; Online September 14, 2011


A doubly symmetric hole having parts of three intersecting circles as its boundary is suitable as a stress concentrator in the investigations of the fatigue properties of materials. Using Homalite 100 as the model material, a series of photoelastic experiments was made to determine the stress concentration factors at such hole in finite strips under tension. The results were compared with those calculated from a semiempirical equation suggested by Mitchell and other experimental results.

Copyright © 1968 by ASME
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