Simulation of welding residual stresses in resistance spot welding, FE modeling and X-ray verification
| Autor: | Siamak Serajzadeh, I. Ranjbar Nodeh, Amir Hossein Kokabi |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Materials science
Metallurgy Metals and Alloys Welding Edge (geometry) Electric resistance welding Industrial and Manufacturing Engineering Finite element method Computer Science Applications law.invention law Residual stress Modeling and Simulation Ultimate tensile strength Ceramics and Composites Composite material Material properties Spot welding |
| Zdroj: | Journal of Materials Processing Technology. 205:60-69 |
| ISSN: | 0924-0136 |
| DOI: | 10.1016/j.jmatprotec.2007.11.104 |
| Popis: | In the present study, an electro-thermo-mechanical model is utilized to predict electrical potential, temperature and residual stress distributions during different stages of resistance spot welding. In order to improve accuracy, material properties including physical, thermal and mechanical properties supposed to be temperature-dependent. The employed model is capable of considering the effects of welding parameters such as heat input and welding time on residual stress distribution. The model results are then compared with the measured residual stresses and good agreement is observed. Predictions show that maximum tensile residual stresses are located at the weld center while they are reduced towards the nugget edge. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect