Abstract
The present work provides mis-match limit loads for welded pipes with constant-depth, circumferential part-through surface cracks in the centre of the weld metal. As limiting cases, circumferential through-wall and fully circumferential cracks are also considered. Based on systematic finite element limit analyses, mis-match limit loads are quantified by the strength mis-match ratio and only one geometry-related slenderness parameter, not requiring additional geometry-related parameters. This implies that mis-match limit loads for surface cracked pipes can be found from those for idealized axi-symmetric problems, which offers significant benefit in assessment of surface cracks in welds of pipes.
Original language | English |
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Pages (from-to) | 1074-1086 |
Number of pages | 13 |
Journal | Engineering Fracture Mechanics |
Volume | 76 |
Issue number | 8 |
DOIs | |
Publication status | Published - 2009 May |
Bibliographical note
Funding Information:This research is performed under programs of Basic Atomic Energy Research Institute and Engineering Research Center (No. R11-2007-028-00000-0), funded by Korea Science & Engineering Foundation.
Keywords
- Circumferential part-through surface cracked pipe
- Finite element analysis
- Mis-match limit load
- Reference stress based J estimates
- Strength mis-match
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering