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General Information
    • ISSN: 2010-3697
    • Frequency: Bimonthly
    • DOI: 10.7763/IJMO
    • Editor-in-Chief: Prof. Adrian Olaru
    • Executive Editor: Ms.Yoyo Y. Zhou
    • Abstracting/ Indexing: Engineering & Technology Digital Library, ProQuest, Crossref, Electronic Journals Library, Google Scholar, EI (INSPEC, IET).
    • E-mail ijmo@iacsitp.com
Prof. Adrian Olaru
University Politehnica of Bucharest, Romania
I'm happy to take on the position of editor in chief of IJMO. It's a journal that shows promise of becoming a recognized journal in the area of modelling and optimization. I'll work together with the editors to help it progress.
IJMO 2014Vol.4(5): 410-416 ISSN: 2010-3697
DOI: 10.7763/IJMO.2014.V4.409

Simplified Thermo-Mechanical Modeling of Friction Stir Welding with a Sequential FE Method

Hongjun Li and Di Liu
Abstract—This paper presents a methodology for modeling the transient thermal and mechanical responses without computing the heat generated by friction or plastic deformation. The externally applied heat source accounts for the heat generated from tool movement. The novel heat source model includes two parts: surface heat flux at the shoulder-workpiece interface and nodal heat generation in the material that should have been displaced by the tool. The heat source algorithm is described through equations and flow charts. This thermal model was shown to predict a temperature history in good agreement with experimentally measured results. The mechanical interaction between the contacting surfaces was modelled with contact elements. However the analysis failed to converge with the contact pairs active. For the analysis without contact pairs, the predicted longitudinal direction stresses matched well with experiment but the transverse direction stresses were significantly different.

Index Terms—Finite element analysis, friction stir welding, thermo-mechanical modeling, sequential method.

The all authors are with the Zhejiang Sci-Tech University, Hangzhou, 310018 China (e-mail: lihongjun@ zstu.edu.cn).


Cite: Simplified Thermo-Mechanical Modeling of Friction Stir Welding with a Sequential FE Method, "Simplified Thermo-Mechanical Modeling of Friction Stir Welding with a Sequential FE Method," International Journal of Modeling and Optimization vol. 4, no. 5, pp. 410-416, 2014.

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