Abstract
Transverse fillet welded joints and circular hollow section (CHS)-to-plate welded connections were analyzed to obtain crack growth life under bending. Based on a 3D boundary element model, an initial semi-elliptical surface crack was embedded at the weld toe. Thereafter, crack propagation was performed with Paris' law and strain energy density criterion. This method discards the assumption of constant aspect ratio of crack shape during propagation stage. Numerical results were compared with the experimental results in the literature. It is found that numerical analysis is reliable and the boundary element method is suitable for estimating the fatigue crack growth life.
| Original language | English |
|---|---|
| Pages (from-to) | 44-51 |
| Number of pages | 8 |
| Journal | Engineering Fracture Mechanics |
| Volume | 98 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Jan 2013 |
| Externally published | Yes |
Keywords
- Bending
- Boundary element method
- Crack growth life
- Welded connections
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering