Measurement of Through-Thickness Residual Stress in Primary Piping of Girth Welded Joint

Masahito Mochizuki; Shigetaka Okano; Gyu Baek An; Masao Toyoda

doi:10.4028/www.scientific.net/MSF.580-582.577

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Measurement of Through-Thickness Residual Stress in Primary Piping of Girth Welded Joint

Abstract:

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.