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Method for determining residual stresses in pipes

Journal Article · · J. Pressure Vessel Technol.; (United States)
DOI:https://doi.org/10.1115/1.3264208· OSTI ID:6394304

A combined analytical and experimental method for inferring the residual stresses in a pipe formed by joining two sections with a girth butt weld is described. The relieved surface strains due to cutting the pipe in two are measured and fitted in a least-square sense to the strains predicted by an analysis of the sectioned pipes. This permits a prediction of the through-thickness distribution of the residual longitudinal normal and radial shear stresses at the site of the cut. The procedure is used to infer the residual stress distribution due to last-pass-heat-sink welding of two sections of 16 in (400 mm) dia pipe. 3 refs.

Research Organization:
Ohio State Univ, Columbus, USA
OSTI ID:
6394304
Journal Information:
J. Pressure Vessel Technol.; (United States), Journal Name: J. Pressure Vessel Technol.; (United States) Vol. 104:3; ISSN JPVTA
Country of Publication:
United States
Language:
English