Stress Redistribution and Rupture Due to Creep in a Uniformly Stretched Thin Plate Containing a Circular Hole

[+] Author and Article Information
D. R. Hayhurst

Department of Engineering, University of Leicester, Leicester, England

J. Appl. Mech 40(1), 244-250 (Mar 01, 1973) (7 pages) doi:10.1115/1.3422934 History: Received September 01, 1971; Revised April 01, 1972; Online July 12, 2010


A uniaxial theory of low-stress, high-temperature creep rupture has been shown to predict the results of uniaxial creep rupture tests. By including the creep rupture relationships into the accepted multiaxial deformation laws and following the numerical procedure outlined in a previous publication, a lower bound on the rupture time has been obtained for the case of a biaxially loaded plate containing a small hole at its center. It has been shown that the rupture behavior of the structure is controlled by a single stress whose magnitude is independent of the form of the constitutive relationship. The results of the prediction method agreed well with the experimentally determined values for aluminum plates tested at elevated temperatures.

Copyright © 1973 by ASME
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