Measurement of Through-Thickness Residual Stress in Primary Piping of Girth Welded Joint
The welding residual stress of a butt-welded pipe joint is evaluated, using inherent strain analysis. The residual stress distribution is obtained in detail along the thickness direction. The residual stresses are similar to values obtained by direct measurement on the specimen surface; as if though direct measurement is not used for the inherent strain analysis. These results indicate that inherent strain analysis is effective in evaluating through-thickness residual stress in primary piping of girth welded joint.
Changhee Lee, Jong-Bong Lee, Dong-Hwan Park and Suck-Joo Na
M. Mochizuki et al., "Measurement of Through-Thickness Residual Stress in Primary Piping of Girth Welded Joint", Materials Science Forum, Vols. 580-582, pp. 577-580, 2008