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Numerical simulation of friction stir spot welding process for aluminum alloys

Cited 25 time in Web of Science Cited 28 time in Scopus
Authors

Kim, Dongun; Badarinarayan, Harsha; Ryu, Ill; Kim, Ji Hoon; Kim, Chongmin; Okamoto, Kazutaka; Wagoner, R. H.; Chung, Kwansoo

Issue Date
2010-04
Publisher
KOREAN INST METALS MATERIALS
Citation
METALS AND MATERIALS INTERNATIONAL, Vol.16 No.2, pp.323-332
Abstract
Thermo-mechanical simulations of the Friction Stir Spot Welding (FSSW) processes were performed for AA5083-H18 and AA6022-T4, utilizing commercial Finite Element Method (FEM) and Finite Volume Method (FVM) codes, which are based on Lagrangian and Eulerian formulations, respectively. The Lagrangian explicit dynamic FEM code, PAM-CRASH, and the Eulerian Computational Fluid Dynamics (CFD) FVM code, STAR-CD, were utilized to understand the effect of pin geometry on weld strength and material flow under the unsteady state condition. Using FVM code, material flow patterns near the tool boundary were analyzed to explain weld strength difference between welds by a cylindrical pin and welds by a triangular pin, whereas the frictional energy concept using the FEM code had a limited capacity to explain the weld strength difference.
ISSN
1598-9623
URI
https://hdl.handle.net/10371/201276
DOI
https://doi.org/10.1007/s12540-010-0425-9
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Ryu, Ill류일
조교수
  • College of Engineering
  • Department of Materials Science & Engineering
Research Area Fundamental deformation mechanisms, Optimal desing in nanostructures, Reliability Analysis in Nanostructures

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