Numerical simulation research of friction stir welding based on SPH method

HAN Zeping; CAO Lijie

doi:10.12299/jsues.23-0060

Volume 38 Issue 1

Feb. 2024

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HAN Zeping, CAO Lijie. Numerical simulation research of friction stir welding based on SPH method[J]. Journal of Shanghai University of Engineering Science, 2024, 38(1): 50-56. doi: 10.12299/jsues.23-0060

Citation:

HAN Zeping, CAO Lijie. Numerical simulation research of friction stir welding based on SPH method[J]. Journal of Shanghai University of Engineering Science, 2024, 38(1): 50-56. doi: 10.12299/jsues.23-0060

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Numerical simulation research of friction stir welding based on SPH method

doi: 10.12299/jsues.23-0060

HAN Zeping,
CAO Lijie^,

School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai 201620, China

Received Date: 2023-03-14
Publish Date: 2024-03-30

Abstract

Abstract

Smoothed particle hydrodynamics (SPH) is a meshless method based on Lagrangian. ABAQUS software was used to simulate the friction stir welding of AZ31B magnesium alloy based on the SPH method. By changing the rotation speed of the stirring too, the distributions of residual stress and temperature were studied. The results show that the distribution of residual stress on both sides of the weld is asymmetrical, and the stress on the retreating side is greater than that on the advancing side; the stress curve has bimodal characteristics, showing tensile stress in the welding area; as the rotational speed increases, the stress distribution of the workpiece becomes more uniform; the temperature distribution on both sides of the weld is asymmetrical, and the advancing side is higher than the retreating side, and the temperature rises with the increase of the rotational speed; the longitudinal temperature curve presents an M-shaped distribution. The simulation results have certain reference significance for the selection of welding parameters in the actual welding process.
- friction stir welding,
- smoothed particle hydrodynamics (SPH),
- residual stress,
- temperature field,
- AZ31B magnesium alloy

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References(15)

References

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