Numerical Analysis of FSW Employing Discrete Element Method

Abstract

The Friction Stir Welding (FSW) is known as the non-melting joining technique. The numerical analysis methods employing grid methods for FSW process have been developed. However, the FSW includes the complex phenomena as plastic flow of the substances, temperature flow and a phase transformation. Some complex processes are required to analyze the substances of different physical properties on the bonded interface and the dissimilar joining. This paper proposes the analysis technique for the FSW employing the Discrete Element Method (DEM). The DEM is the analysis technique for that analyze the powders behavior. In this report, a proposal analysis model of plasticity body for FSW simulation is described. Finally, the usefulness is discussed through the analysis result of FSW process.