Modeling of Distortion in Girth-Welded Thin Pipes

[+] Author and Article Information
H. Song

Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139

A. Moshaiov

Department of Solid Mechanics, Materials and Structures, Tel-Aviv University, Tel Aviv, Israel

J. Pressure Vessel Technol 112(3), 266-272 (Aug 01, 1990) (7 pages) doi:10.1115/1.2928624 History: Received December 30, 1988; Revised February 19, 1990; Online June 17, 2008


The axisymmetric distortion in girth-welded pipes is studied in this paper. A model is developed based on the fact that only a small part of the pipe near the welding arc undergoes high temperature changes, and thus behaves thermo-elastic-plastically, while the rest of the structure is elastic in nature and may, at most, have some thermo-elastic effects. The model is shown to match Finite Element Method in predicting the overall approximated axisymmetric shrinkage in girth-welded pipes. A qualitative agreement with published analytical and experimental results is achieved as well.

Copyright © 1990 by The American Society of Mechanical Engineers
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