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Persistent URL http://purl.org/net/epubs/work/44233
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Record Id 44233
Title Neutron Diffraction Evaluation of Residual for Several Weld Arrangements and Comparison with Fitness-For-Purpose Assessments
Abstract In this research the neutron diffraction technique was used to investigate and compare the residual stress characteristics in a several weld arrangements. This research has focused on the effects on residual stress of:restraint condition applied during welding, the start and end of the weld for a single bead, and increasing the number of passes. The measured residual stress distributions are normalized by the yield strength of the material and compared with distribution provided in fitness-for-purpose procedures. It is found that the current safety assessment procedure BS 7910 and R6 Level 1 are significantly conservative. For a less conservative assessment R6 Level 2 is recommended, however even this assessment is often conservative, in particular for transverse residual stresses.
Organisation ISIS , ISIS-ENGIN-X , STFC
Keywords Engineering , neutron diffraction , residual stress , welding , multibeads on plate , SSTD 2007-2008
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Language English (EN)
Type Details URI(s) Local file(s) Year
Journal Article Journal of Pressure Vessel Technology- Trans. of the ASME 130, no. 1 (2008): 11501. doi:10.1115/1.2826449 2008