Abstract
The effects of safe-end length and kinematic boundary conditions during welding on weld residual stresses in dissimilar metal welds are systematically investigated using finite element analyses for typical pressurized water reactor surge nozzle configurations. The study is generalized by idealizing complex nozzle geometries as straight pipes with two welds. The impact of these variables on axial residual stresses at inner surface is examined, since these are of most concern for primary water stress corrosion cracking. Possible mechanisms controlling the development of welding residual stresses are used to qualitatively explain the predicted behavior.
Original language | English |
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Pages (from-to) | 1957-1975 |
Number of pages | 19 |
Journal | Engineering Fracture Mechanics |
Volume | 78 |
Issue number | 9 |
DOIs | |
Publication status | Published - 2011 Jun |
Keywords
- Finite element welding simulation
- Kinematic boundary condition effect
- Safe-end length effect
- Surge nozzle in pressurized water reactors
- Welding residual stresses
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering