scholarly journals Fully Coupled Thermo-Mechanical Modelling of the Initial Phase of the Friction Stir Welding Process Using Finite Element Analysis

2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Ahadi Aylin ◽  
Port Ferran Roura
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Friction Stir Welding ◽  
Initial Phase ◽  
Welding Process ◽  
Element Analysis ◽  
Friction Stir ◽  
Friction Stir Welding Process ◽  
Mechanical Modelling ◽  
Fully Coupled

Thermo-Mechanical Modelling of Friction Stir Welding Process

2013 ◽  
Vol 774-776 ◽  
pp. 1155-1159 ◽  
Author(s):  
Xiao Cong He
Keyword(s):  
Finite Element Analysis ◽  
Friction Stir Welding ◽  
Mechanical Behaviour ◽  
Material Flow ◽  
Welding Process ◽  
Element Analysis ◽  
Friction Stir ◽  
Mechanical Modelling ◽  
Major Factors ◽  
Realistic Prediction

Friction stir welding (FSW) is a solid-state welding process where no gross melting of the material being welded takes place. Numerical modelling of the FSW process can provide realistic prediction of the thermo-mechanical behaviour of the process. Latest literature relating to finite element analysis (FEA) of thermo-mechanical behaviour of FSW process is reviewed in this paper. The recent development in thermo-mechanical modelling of FSW process is described with particular reference to two major factors that influence the performance of FSW joints: material flow and temperature distribution. The main thermo-mechanical modelling used in FSW process are discussed and illustrated with brief case studies from the literature.

Fully coupled thermomechanical finite element analysis of material evolution during friction-stir welding of AA5083

2009 ◽  
Vol 224 (4) ◽  
pp. 609-625 ◽  
Author(s):  
M Grujicic ◽  
T He ◽  
G Arakere ◽  
H V Yalavarthy ◽  
C-F Yen ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Friction Stir Welding ◽  
Computational Approach ◽  
Material Strength ◽  
Element Analysis ◽  
Friction Stir ◽  
Ale Formulation ◽  
Strain And Strain Rate ◽  
Fully Coupled

Interactions between the rotating and advancing pin-shaped tool (terminated at one end with a circular—cylindrical shoulder) with the clamped welding plates and the associated material and heat transport during a friction-stir welding (FSW) process are studied computationally using a fully coupled thermomechanical finite element analysis. To surmount potential numerical problems associated with extensive mesh distortions/entanglement, an arbitrary Lagrangian—Eulerian (ALE) formulation was used, which enabled adaptive remeshing (to ensure the continuing presence of a high-quality mesh) while allowing full tracking of the material-free surfaces. To demonstrate the utility of the present computational approach, the analysis is applied to the case of FSW of AA5083 (a solid—solution strengthened and strain-hardened/stabilized Al—Mg wrought alloy). To account for the competition between plastic deformation-controlled strengthening and dynamic recrystallization-induced softening phenomena during the FSW process, the original Johnson—Cook strain and strain-rate hardening and temperature-softening material strength model is modified using the available recrystallization kinetics experimental data. Lastly, the computational results obtained in the present work are compared with their experimental counterparts available in the open literature. This comparison revealed that general trends regarding spatial distribution and temporal evolutions of various material-state quantities and their dependence on the FSW process parameters are reasonably well predicted by the present computational approach.

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