Design and Analysis of a Test Coupon for Fusion Welding

[+] Author and Article Information
B. K. Jones, A. F. Emery

Department of Mechanical Engineering, University of Washington, Seattle, WA 98195

S. J. Marburger

Process Development and Fabrication Division, Sandia National Laboratories, Livermore, CA 94550

J. Pressure Vessel Technol 115(1), 38-46 (Feb 01, 1993) (9 pages) doi:10.1115/1.2929493 History: Received June 30, 1988; Revised May 18, 1992; Online June 17, 2008


The objective of a weld coupon is to provide a simple test to determine the effects of different welding parameters and constraints on the final state of fusion welds. With such a test it will be possible to judge the performance of a particular weld under known states of temperature and external restraint. This paper describes the experiments and analyses performed on a thin coupon with a circular weld bead which was designed to simulate a typical manufacturing geometry. The temperatures and deformations measured in the experiments corresponded closely to those of the analyses. It was found that such a geometry provides a high degree of restraint regardless of the radius of the circular weld bead. Experimental and analytical stresses indicate that extensive yielding occurs throughout the coupon.

Copyright © 1993 by The American Society of Mechanical Engineers
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