Statistical analysis of residual stresses in austenitic pipe girth welds

Residual stresses created from welding have a direct influence on fracture mechanisms of cracks and flaws in around welded regions. Excessive residual stress can lead to unexpected failures an important property fitness-for-service calculations. In this work, experimental database the low heat input austenitic girth welds is analysed for statistical correlation. The combined measurement profiles indicate normality throughout weld thickness. Two-sample tests grouped datasets were additionally carried out examine potential relationships within data. Presented measurements characterised by location centre, similarly, pipe aspect ratio. Results moderate dimension ratio piping components suggesting additional consideration procedures.