| 2006 №01 (03) | 2006 №01 (05) |
The Paton Welding Journal, 2006, #1, -29 pages
Procedure for determination of residual stresses in welded joints and structural elements using electron speckle-interferometry
L.M. Lobanov, V.A. Pivtorak, V.V. Savitsky, G.I. Tkachuk
E.O. Paton Electric Welding Institute of the NASU. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.Abstract
A computer program is described for processing the interference fringe patterns in the area of a drilled blind hole, containing information on displacements caused by elastic stress relieving. Experimental and calculated values are given, which were obtained when solving the procedural problem of beam bending under the impact of the specified load. Calculated values were compared with experimental values, this allowing evaluation of the error of the suggested method of stress determination.
Keywords: welded structures, residual stresses, evaluation procedure, probing holes, electron speckle-shearography, elastic pre-tension
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