Development of a Combined Method between MPS and FEM for Simulating Friction Stir Welding

Abstract:

In order to simulate the large deformation surrounding the rotational tool of friction stir welding (FSW) precisely, the moving particle semi-implicit (MPS) method was employed and the temperature distributions near the tool were obtained. Also, the temperature distributions in the whole model except for the area computed by MPS were calculated by the finite element method (FEM) and then the elastic-plastic analysis was conducted using the temperature distributions obtained by MPS and FEM. The inhomogeneous temperature distributions through the thickness near the joint line could be simulated and the maximum temperature distributions computed had a good agreement with the experiments. In addition, the longitudinal plastic strain distributions indicates that this plastic strain near the tool is not governed by only the temperature distributions and the influence of plastic flow should be taken into account.

• Periodical: Materials Science Forum (Volumes 783-786)
• Pages: 2531-2536
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.783-786.2531
• Online since: May 2014
• Authors: Hisashi Serizawa*, Junji Shimazaki, Fumikazu Miyasaka, Gaku Yoshikawa, Hidekazu Murakawa
• Keywords: Finite Element Method (FEM), Friction Stir Welding (FSW), Moving Particle Semi-Implicit Method, Plastic Flow, Plastic Strain

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