Effects of Repair Weld Length on Residual Stress Distribution

[+] Author and Article Information
P. Dong, J. Zhang

Center for Welded Structures Research, Battelle Memorial Institute, Columbus, OH 43201-2693

P. J. Bouchard

British Energy, Gloucester, UK

J. Pressure Vessel Technol 124(1), 74-80 (Aug 31, 2001) (7 pages) doi:10.1115/1.1429230 History: Received February 15, 2001; Revised August 31, 2001
Copyright © 2002 by ASME
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Grahic Jump Location
Illustration of the basic concept of a special 3-D composite shell model
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Mathematical structure of a weld material routine
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3-D composite shell element model for pipe repair welds
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Composite shell section definition for pipe repair welds
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Temperature distributions during pipe repair welding (medium repair length)
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Axial residual stress distributions on the pipe outer surface
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Circumferential variations in axial residual stresses
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Axial variations in axial residual stresses at repair center
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Comparison of axial residual stresses with and without original weld effects (medium repair length)—(a) with original residual stress, (b) without original residual stress
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3-D deformation characteristics of pipe repair welds
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Through-wall hoop residual stresses in the HAZ at midlength of a short (20 deg arc), centrally embedded, 75 percent thickness, weld repair to a 35-mm-thick stainless steel girth weld
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Through-wall axial residual stresses in the HAZ at midlength of a short (20 deg arc), centrally embedded, 75 percent thickness, weld repair to a 35-mm-thick stainless steel girth weld




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