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RESEARCH PAPERS

A Study of Shear Crack Propagation in Gas-Pressurized Pipelines

[+] Author and Article Information
E. Sugie

Kawasaki Steel Corporation; High Strength Line Pipe Research Committee, Iron and Steel Institute of Japan, Tokyo, Japan

M. Matsuoka

Kobe Steel Ltd.; High Strength Line Pipe Research Committee, Iron and Steel Institute of Japan, Tokyo, Japan

T. Akiyama

Nippon Kokan K. K.; High Strength Line Pipe Research Committee, Iron and Steel Institute of Japan, Tokyo, Japan

H. Mimura

Nippon Steel Corporation; High Strength Line Pipe Research Committee, Iron and Steel Institute of Japan, Tokyo, Japan

Y. Kawaguchi

Sumitomo Metal Industry; High Strength Line Pipe Research Committee, Iron and Steel Institute of Japan, Tokyo, Japan

J. Pressure Vessel Technol 104(4), 338-343 (Nov 01, 1982) (6 pages) doi:10.1115/1.3264226 History: Received August 23, 1982; Online November 05, 2009

Abstract

Full-scale burst tests were carried out five times on line pipes of 48 in. o.d. × 0.720 in. w.t., Grad. X-70 manufactured by the controlled rolling and the quenching and tempering processes. It was found that the critical notch ductility for arresting a shear crack depends on the pipe length within which the crack is to be arrested. This result is well explained by solving the equation which governs change of crack velocity. The behavior of shear crack propagation and arrest can be well analyzed regardless of the existence or nonexistence of separation by Charpy energy.

Copyright © 1982 by ASME
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