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TECHNICAL PAPERS

Measuring Method for Residual Stresses in Explosively Clad Plates and a Method of Residual Stress Reduction

[+] Author and Article Information
Y. Ueda, H. Murakawa, N. X. Ma

Welding Research Institute, Osaka University, 11-1, Mihogaoka, Ibaraki, Osaka 567, Japan

J. Eng. Mater. Technol 118(4), 576-582 (Oct 01, 1996) (7 pages) doi:10.1115/1.2805959 History: Received June 03, 1995; Revised April 29, 1996; Online November 27, 2007

Abstract

In this paper, a new layer removal method for measurement of local residual stress through the thickness of clad plates is developed using inherent strain which is considered a source of residual stress. Using the new method, residual stresses in explosively clad plates of Ni/SUS304 and Zr/Zr/Ta/SUS304 are measured. Then, residual stresses remaining in a pipe joint piece cut from the explosively clad plate are estimated by an elastic analysis using inherent strain. Furthermore, the validity of a mechanical stress reduction method by applying axial compressive load to the pipe joint piece, is demonstrated by elastic-plastic FEM analysis.

Copyright © 1996 by The American Society of Mechanical Engineers
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