An Experimental Investigation of Fracture Criteria for Combined Extension and Bending

[+] Author and Article Information
R. H. Wynn

Department of Engineering, University of Tennessee at Chattanooga, Chattanooga, Tenn.

C. W. Smith

Department of Engineering Mechanics, Virginia Polytechnic Institute, Blacksburg, Va.

J. Basic Eng 91(4), 841-849 (Dec 01, 1969) (9 pages) doi:10.1115/1.3571228 History: Received July 18, 1969; Online November 03, 2011


Experiments were performed on cracked plates loaded in combined extension and approximately cylindrical bending. A fracture criterion was developed from the Sih-Hartranft bending theory, which, when modified to account for precatastrophic crack extension, agreed well with the experiments in regions where the crack remained open at fracture and appeared to provide a lower bound in the region where crack closure occurred.

Copyright © 1969 by ASME
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