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RESEARCH PAPERS

Failure Analysis of Cast Irons Under General Three-Dimensional Stress States

[+] Author and Article Information
R. E. Frishmuth

General Electric Co., Gas Turbine Products Div., Schenectady, N. Y.

P. V. McLaughlin

Materials Sciences Corp., Blue Bell Office Campus, Blue Bell, Pa.

J. Eng. Mater. Technol 98(1), 69-75 (Jan 01, 1976) (7 pages) doi:10.1115/1.3443339 History: Received October 21, 1974; Revised March 17, 1975; Online August 17, 2010

Abstract

Observations of microscale behavior of cast irons indicate that considerable plastic flow occurs between microflaws prior to rupture. Therefore, the plastic limit load for small representative volume elements of material treated as structures should be a close approximation to the load at rupture. A representative volume element of cast iron is analyzed using limit analysis techniques to obtain bounds on the limit, or failure, surface under three dimensional average stress. Comparisons with other cast iron failure criteria and experimental data are made.

Copyright © 1976 by ASME
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