Journal
COMPUTERS & STRUCTURES
Volume 117, Issue -, Pages 48-57Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.compstruc.2012.12.006
Keywords
Friction stir welding; Apropos kinematic framework; Particle tracing; Visco-plasticity; Friction; Stabilized finite element method
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This paper describes features of a fully coupled thermo-mechanical model for Friction Stir Welding (FSW) simulation. An apropos kinematic setting for different zones of the computational domain is introduced and an efficient coupling strategy is proposed. Heat generation via viscous dissipation as well as frictional heating is considered. The results of the simulation using the proposed model are compared with the experimental evidence. The effect of slip and stick condition on non-circular pin shapes is analyzed. Simulation of material stirring is also carried out via particle tracing, providing insight of the material flow pattern in the vicinity of the pin. (C) 2012 Elsevier Ltd. All rights reserved.
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