Stress Intensity Factors for Semicircular Cracks: Part 2—Semi-Infinite Solid

[+] Author and Article Information
F. W. Smith

Department of Mechanical Engineering, Colorado State University, Fort Collins, Colo.

A. F. Emery, A. S. Kobayashi

Department of Mechanical Engineering, University of Washington, Seattle, Wash.

J. Appl. Mech 34(4), 953-959 (Dec 01, 1967) (7 pages) doi:10.1115/1.3607862 History: Received April 28, 1966; Revised March 20, 1967; Online September 14, 2011


The stress intensity factor for a semicircular edge crack is derived. Numerical values for axial, bending, and thermal loads in half spaces and plates are presented. The results show that a magnification of the stress intensity factor of about 20 percent occurs at the free surface.

Copyright © 1967 by ASME
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