Abstract
Double ellipsoidal heat source model and finite element method were used to analyze 3-D welding temperature distributions and the driving force of weld solidification cracking. The comparisons between the simulated and experimental results show the model is good for three-dimensional numerical simulations. The dynamic displacement and strain evolutions were calculated, which induce the formation of solidification cracking in the cracking susceptible temperature range. In the model, the solidification effects were treated by a dynamic element rebirth scheme. Moreover, the calculated driving force of solidification cracking and the measured resistance of solidification cracking were compared and the susceptibility of weld solidification cracking was predicted.
| Original language | English |
|---|---|
| Pages (from-to) | 214-218 |
| Number of pages | 5 |
| Journal | Jinshu Xuebao/Acta Metallurgica Sinica |
| Volume | 41 |
| Issue number | 2 |
| State | Published - Feb 2005 |
Keywords
- Element rebirth technique
- Solidification cracking
- Strain field
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