In this paper, a new measuring method of three-dimensional residual stresses induced in a butt welded joint is presented. The proposed method is based on a general approach developed by the authors, in which inherent strains (the source of residual stresses) are dealt with as parameters. In the present report, three-dimensional residual stresses in a long body, in which the residual stress distribution is uniform in longitudinal direction, is considered as a special case. It is shown that the measurement of the three-dimensional residual stress, in this case, can be reduced to a combination of two sets of measurements of two-dimensional residual stresses. This method is applied to determine the residual stresses in an actual welded joint and its reliability and practicability are also demonstrated.

This content is only available via PDF.
You do not currently have access to this content.