A thermo-fluid/thermo-mechanical modelling approach for computing temperature cycles and residual stresses in FSW
- De Vuyst T. ,
- Madhavan V. ,
- Ducoeur B. ,
- et al
- De Vuyst T. ,
- Madhavan V. ,
- Ducoeur B. ,
- Simar A. ,
- de Meester B. and
- D'Alvise L.
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A two-step modelling procedure, consisting of a thermo-fluid model and a thermo-mechanical model, was employed to predict temperature, flow and residual stress fields around the workpiece block, steel backing plate and tool in friction stir welding (FSW). Simulation results were obtained for friction stir butt joints in AA 2024-T3 (Al, 4.1%Cu, 1.4%Mg) sheets welded with different sets of process parameters. The thermo-fluid model was developed using the Morfeo finite element code, while the global thermo-mechanical model was based on the "SAMCEF" finite element code and incorporated a temperature-dependent elastoplastic law. Predictions of heat input, temperature and residual stress fields were compared with experimental thermocouple results and stress measurements using the slit compliance method.
7th International Symposium, 20-22 May 2008, 2B: Modelling 1, Paper 03
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