Abstract
This paper provides approximate expressions for through-wall welding residual stresses in dissimilar metal nozzle butt welds of pressurized water reactors. An idealized shape of nozzle is proposed, based on which systematic elastic-plastic thermo-mechanical finite element analyses are conducted by varying the thickness and radius of the nozzle and the length of the safe-end. Based on the results, a through-wall welding residual stress profile for dissimilar metal nozzle butt welds is proposed by modifying the existing welding residual stress profile for austenitic pipe butt welds in the R6 procedure.
| Original language | English |
|---|---|
| Pages (from-to) | 624-641 |
| Number of pages | 18 |
| Journal | Fatigue and Fracture of Engineering Materials and Structures |
| Volume | 34 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 2011 Aug |
| Externally published | Yes |
Keywords
- dissimilar metal nozzle butt welds
- finite element analysis
- pressurised water reactors
- through-wall welding residual stress profile
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering