Biaxial Low Cycle Fatigue for Notched, Cracked, and Smooth Specimens at High Temperatures

[+] Author and Article Information
Masao Sakane, Masateru Ohnami

Ritsumeikan University, Kyoto, 603, Japan

Naomi Hamada

Hiroshima-Denki Institute of Technology, 20-1 6-chome Nakano, Aki-ku Hiroshima, 739-03, Japan

J. Eng. Mater. Technol 110(1), 48-54 (Jan 01, 1988) (7 pages) doi:10.1115/1.3226009 History: Received January 09, 1987; Online September 15, 2009


Push-pull and reversed torsion tests were carried out for notched, precracked, and smooth hollow cylindrical specimens of type 304 stainless steel at 923K in air. This paper describes the crack direction in the three types of specimens and the parameter that correlates the biaxial low cycle fatigue failure data. All types of specimens, except the smooth specimen in the reversed torsion test, failed by mode I cracking. Failure life of the specimens was discussed in connection with the crack mode. The equivalent stress based on COD could correlate the biaxial fatigue data whereas the Mises’ equivalent stress and the maximum principal stress could not.

Copyright © 1988 by ASME
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