Analytical and numerical studies of fatigue stresses in friction stir welding
作者： Z. Zhang , Q. Wu
DOI: 10.1007/S00170-014-6749-8
关键词: Transverse plane 、 Structural engineering 、 Friction stir welding 、 Transverse force 、 Finite element method 、 Fatigue stress 、 Materials science 、 Welding 、 Eulerian model
摘要: Computational fluid dynamic model of the friction stir welding process was established. Forces acting on tool were computed according to obtained pressure fields. The transverse force can be validated by comparison both experimental and numerical results in published literatures. Analytical methods for calculation fatigue stresses then proposed. analytical compared finite element validations. Results indicate that frictional shoulder contact surface takes main contribution tool. maximum stress pin is decreased with increase rotating speed increased speed.
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