Abstract
This paper presents a prediction of load-bearing capacity of flawed steam generator tube using numerical analysis. Alloy 690TT steam generator tube with diameter of 19.05 mm and thickness of 1.07 mm widely used in nuclear power plants is considered in this study. Sound tubes and through-wall cracked tubes are used in tensile tests. Finite element analysis applying a damage mechanics is performed to predict ductile fracture and load-bearing capacity of the cracked tube. A strain-based fracture model is determined and applied to calculate ductile damage during the simulations. The sound tube and through-wall cracked tube tensile tests are analyzed to determine the fracture model as well as proper element size for Alloy 690TT. Crack growths are simulated by implementing stress reduction technique for failed finite element. Predicted maximum load-bearing capacity are compared with published test data.
| Original language | English |
|---|---|
| Pages (from-to) | 1564-1571 |
| Number of pages | 8 |
| Journal | Procedia Engineering |
| Volume | 130 |
| DOIs | |
| Publication status | Published - 2015 |
| Event | 14th International Conference on Pressure Vessel Technology, 2015 - Shanghai, China Duration: 2015 Sept 23 → 2015 Sept 26 |
Bibliographical note
Publisher Copyright:© 2015 Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license.
Keywords
- axial surface flaw
- finite element analysis
- load-bearing capacity
- steam generator tube
ASJC Scopus subject areas
- General Engineering