J-Integral Approach to Fracture of Rotating Disk

[+] Author and Article Information
M. Sakata, S. Aoki

Department of Physical Engineering, Tokyo Institute of Technology, Tokyo, Japan

M. Kanzawa, N. Ogure, K. Tateishi

Central Research Institute, Ebara Corporation, Fujisawa, Kanagawa, Japan

J. Eng. Mater. Technol 100(2), 128-133 (Apr 01, 1978) (6 pages) doi:10.1115/1.3443460 History: Received September 30, 1977; Revised February 07, 1978; Online August 17, 2010


The J-integral has been used as a fracture criterion for elastic-plastic behavior of metals. It may be pertinent to use the JIc concept for design or nondestructive inspection of rotating disks which have crack-like flaws and exhibit some amount of plastic behavior to fracture. JIc for cracked rotating disks of rotor forging steel is determined experimentally and is compared with that obtained using compact specimens. It is shown that prediction based on the compact tension tests agrees well with initiation of crack growth in rotating disks.

Copyright © 1978 by ASME
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