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Finite element simulation of an AA2024-T3 friction stir weld

Gagner, Jonas and Ahadi, Aylin LU (2009) In International Review of Mechanical Engineering Vol.3 Nr.4. p.427-435
Abstract
This paper presents a three-dimensional sequentially coupled thermo-mechanical analysis of the friction stir welding process suitable for residual stress prediction. A friction stir butt weld of the aluminium alloy 2024 T3 is simulated using finite element analysis. The thermal model includes diffusive heat transfer in the work pieces and that backing plate, convective heat transfer in the work pieces caused by the material flow, heat generation at the tool, heat loss to the ambient air and heat transfer between the work pieces and the backing plate. The mechanical model includes thermal expansion and tool forces acting on the work pieces. The thermal part of the simulation shows encouraging results concerning the capability to accurately... (More)
This paper presents a three-dimensional sequentially coupled thermo-mechanical analysis of the friction stir welding process suitable for residual stress prediction. A friction stir butt weld of the aluminium alloy 2024 T3 is simulated using finite element analysis. The thermal model includes diffusive heat transfer in the work pieces and that backing plate, convective heat transfer in the work pieces caused by the material flow, heat generation at the tool, heat loss to the ambient air and heat transfer between the work pieces and the backing plate. The mechanical model includes thermal expansion and tool forces acting on the work pieces. The thermal part of the simulation shows encouraging results concerning the capability to accurately simulate the temperature distribution. The simulated temperatures correspond well to experimentally measured temperatures and the non-symmetric temperature distribution due to material flow is accurately captured in the simulation. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
coupled thermal-stress analyses, FE-simulation, FSW
in
International Review of Mechanical Engineering
volume
Vol.3 Nr.4
pages
427 - 435
publisher
PRAISE WORTHY PRIZE S.r.l.
external identifiers
  • scopus:79952346901
ISSN
1970-8734
language
English
LU publication?
yes
id
46e67f8f-0ef6-46c1-8468-ae89ac93d7ca (old id 1396200)
date added to LUP
2009-05-13 12:33:13
date last changed
2017-01-01 05:21:30
@article{46e67f8f-0ef6-46c1-8468-ae89ac93d7ca,
  abstract     = {This paper presents a three-dimensional sequentially coupled thermo-mechanical analysis of the friction stir welding process suitable for residual stress prediction. A friction stir butt weld of the aluminium alloy 2024 T3 is simulated using finite element analysis. The thermal model includes diffusive heat transfer in the work pieces and that backing plate, convective heat transfer in the work pieces caused by the material flow, heat generation at the tool, heat loss to the ambient air and heat transfer between the work pieces and the backing plate. The mechanical model includes thermal expansion and tool forces acting on the work pieces. The thermal part of the simulation shows encouraging results concerning the capability to accurately simulate the temperature distribution. The simulated temperatures correspond well to experimentally measured temperatures and the non-symmetric temperature distribution due to material flow is accurately captured in the simulation.},
  author       = {Gagner, Jonas and Ahadi, Aylin},
  issn         = {1970-8734},
  keyword      = {coupled thermal-stress analyses,FE-simulation,FSW},
  language     = {eng},
  pages        = {427--435},
  publisher    = {PRAISE WORTHY PRIZE S.r.l.},
  series       = {International Review of Mechanical Engineering},
  title        = {Finite element simulation of an AA2024-T3 friction stir weld},
  volume       = {Vol.3 Nr.4},
  year         = {2009},
}