Simulation of the behavior of aluminum alloys welded in Friction Stir Welding FSW

Abstract

The friction stir welding FSW is a topical technique to date, either for experimental or numerical research topics. Based on the fact that the majority of the heat generated, comes from the contact between the workpiece and the shoulder, and from the work of friction done by the pin. Thus, it is crucial to approach the reality, by simulating the most of the conditions, related to the FSW process. The development of a numerical model allows us, not only to simulate the FSW welding process, but also to conduct a parametric study and vary the welding conditions as desired. Therefore, a numerical study is conducted on the friction stir welding of AA 5083H111 work piece, in order to perceive the optimal settings. A three dimensional model designed by ANSYS APDL was used. Before proceeding with this, a preliminary experimental study was carried out on FSW welded AA 6082 -T6 specimens and base material, using tensile and fatigue tests. The numerical results obtained, essentially longitudinal residual stresses, are compared to other studies, experimental and numerical.

Traverse and longitudinal analysis of AA5083/AA6082 dissimilar joint

“…Given the necessity to advance friction stir welding (FSW) as a welding technique and its application to diverse materials for producing robust similar and dissimilar joints, continuous research efforts are imperative to uncover and master its full potential. The exploration of FSW has adopted innovative approaches, including using modelling and simulation techniques [23,24]. Researchers have also paid significant attention to sample location, particularly when investigating dissimilar joints, as the contrasting materials offer valuable insights.…”

Fracture analysis of AA6061-graphite composite for the application of helicopter rotor blade

“…Structural and mechanical issues incorporate static/dynamic, heat transfer & fluid problems, linear & nonlinear structural analysis, and additionally electromagnetic and acoustic issues. Many two dimensional, three dimensional tutorials ware also available to evaluate the fracture toughness [22][23][24] using finite element methods, most of them ware used ANSYS tool for the same. While simulating the fracture related issues, it requires the use of PLANE182, which will fit the crack tip section.…”