Japanese Research Activities on Offshore Fracture Mechanics Applications

[+] Author and Article Information
S. Machida

Department of Naval Architecture, University of Tokyo, Tokyo, Japan

H. Yajima

Nagasaki R & D Center, Mitsubishi Heavy Industries, Nagasaki, Japan

M. Toyosada

Department of Naval Architecture, Kyushu University, Fukuoka, Japan

Y. Hagiwara

R & D Laboratories II, Nippon Steel Corporation, Sagamihara, Japan

K. Kajimoto

Hiroshima Technical Institute, Mitsubishi Heavy Industries, Hiroshima, Japan

Appl. Mech. Rev 41(2), 96-106 (Feb 01, 1988) (11 pages) doi:10.1115/1.3151884 History: Online June 03, 2009


The brittle fracture, for its catastrophic nature, is one of the most important factors for designing offshore structures especially operating in the cold sea. Fracture mechanics method can provide a useful tool to maintain the reliability of structural integrity. This paper gives descriptions on a proposed method for fracture assessment with experimental verifications, and also informations from some recent Japanese research activities associated with the application of fracture mechanics to the offshore structures, i.e. initial defect size evaluation, a practical method for evaluation of the local strain in strain concentrated structural components, effect of strain rate on fracture toughness and fracture toughness of weldments.

Copyright © 1988 by American Society of Mechanical Engineers
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