Open AccessNumerical simulation of coupled thermo-mechanical process of friction stir welding in quasi-steady-state
Author(s) -
Pengfei Yin,
Rong Zhang,
Xiong Jiangtao,
Jinglong Li
Publication year - 2013
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.62.018102
Subject(s) - friction stir welding , welding , materials science , deformation (meteorology) , field (mathematics) , thermal , joint (building) , heat transfer , mechanics , flow (mathematics) , process (computing) , material flow , computer simulation , plasticity , friction welding , mechanical engineering , composite material , structural engineering , thermodynamics , computer science , physics , engineering , operating system , ecology , mathematics , biology , pure mathematics
The flow field of plastic deformation and the temperature field during the process of friction stir welding can directly affect the structure evolution of the welded joint, and also have a great influence on mechanical properties of the final joint. In this respect, therfore, a lot of researches have been carried out. The recent research results show that this process is an extremely complex coupled thermal-mechanical process, the temperature field couples together with the flow field of plastic deformation of the material. In this paper, the coupled process is simulated based on hydromechanics and heat transfer theory; the flow field of plastic deformation and the temperature field are calculated; an experiment is designed to measure the temperature field, which indicates that the computed results can exactly describe the coupled thermal-mechanical condition of the friction stir welding in quasi-steady-state.