Analysis of Temperature and Residual Stress Distribution in CO2 Laser Welded Aluminum 6061 Plates Using FEM

This paper develops a nonlinear transient three-dimensional heat transfer finite element model and a rate independent three-dimensional deformation model, developed for the CO2 laser welding simulations in Al-6061-T6 alloy. Simulations are performed using an indirect coupled thermal-structural meth...

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Autor principal:	Sanaa Numan Mohammed
Formato:	article
Lenguaje:	EN
Publicado:	Al-Khwarizmi College of Engineering – University of Baghdad 2011
Materias:	Laser welding aluminum alloys finite element analysis Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/5cdea14d10ab417fa23317132672eb77
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spelling	oai:doaj.org-article:5cdea14d10ab417fa23317132672eb772021-12-02T04:16:23ZAnalysis of Temperature and Residual Stress Distribution in CO2 Laser Welded Aluminum 6061 Plates Using FEM1818-11712312-0789https://doaj.org/article/5cdea14d10ab417fa23317132672eb772011-09-01T00:00:00Zhttp://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/72https://doaj.org/toc/1818-1171https://doaj.org/toc/2312-0789 This paper develops a nonlinear transient three-dimensional heat transfer finite element model and a rate independent three-dimensional deformation model, developed for the CO2 laser welding simulations in Al-6061-T6 alloy. Simulations are performed using an indirect coupled thermal-structural method for the process of welding. Temperature-dependent thermal properties of Al-6061-T6, effect of latent heat of fusion, and the convective and radiative boundary conditions are included in the model. The heat input to the model is assumed to be a Gaussian heat source. The finite element code ANSYS12, along with a few FORTRAN subroutines, are employed to obtain the numerical results. The benefit of the proposed methodology is that it offers the capability of optimizing laser welding process, and also provides a reliable estimation of the developed temperatures, as well as the thermal stress (residual stress) and strain fields reducing the experimental effort. Sanaa Numan MohammedAl-Khwarizmi College of Engineering – University of BaghdadarticleLaser weldingaluminum alloys finite element analysisChemical engineeringTP155-156Engineering (General). Civil engineering (General)TA1-2040ENAl-Khawarizmi Engineering Journal, Vol 7, Iss 3 (2011)
institution	DOAJ
collection	DOAJ
language	EN
topic	Laser welding aluminum alloys finite element analysis Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Laser welding aluminum alloys finite element analysis Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040 Sanaa Numan Mohammed Analysis of Temperature and Residual Stress Distribution in CO2 Laser Welded Aluminum 6061 Plates Using FEM
description	This paper develops a nonlinear transient three-dimensional heat transfer finite element model and a rate independent three-dimensional deformation model, developed for the CO2 laser welding simulations in Al-6061-T6 alloy. Simulations are performed using an indirect coupled thermal-structural method for the process of welding. Temperature-dependent thermal properties of Al-6061-T6, effect of latent heat of fusion, and the convective and radiative boundary conditions are included in the model. The heat input to the model is assumed to be a Gaussian heat source. The finite element code ANSYS12, along with a few FORTRAN subroutines, are employed to obtain the numerical results. The benefit of the proposed methodology is that it offers the capability of optimizing laser welding process, and also provides a reliable estimation of the developed temperatures, as well as the thermal stress (residual stress) and strain fields reducing the experimental effort.
format	article
author	Sanaa Numan Mohammed
author_facet	Sanaa Numan Mohammed
author_sort	Sanaa Numan Mohammed
title	Analysis of Temperature and Residual Stress Distribution in CO2 Laser Welded Aluminum 6061 Plates Using FEM
title_short	Analysis of Temperature and Residual Stress Distribution in CO2 Laser Welded Aluminum 6061 Plates Using FEM
title_full	Analysis of Temperature and Residual Stress Distribution in CO2 Laser Welded Aluminum 6061 Plates Using FEM
title_fullStr	Analysis of Temperature and Residual Stress Distribution in CO2 Laser Welded Aluminum 6061 Plates Using FEM
title_full_unstemmed	Analysis of Temperature and Residual Stress Distribution in CO2 Laser Welded Aluminum 6061 Plates Using FEM
title_sort	analysis of temperature and residual stress distribution in co2 laser welded aluminum 6061 plates using fem
publisher	Al-Khwarizmi College of Engineering – University of Baghdad
publishDate	2011
url	https://doaj.org/article/5cdea14d10ab417fa23317132672eb77
work_keys_str_mv	AT sanaanumanmohammed analysisoftemperatureandresidualstressdistributioninco2laserweldedaluminum6061platesusingfem
_version_	1718401368946900992

Analysis of Temperature and Residual Stress Distribution in CO2 Laser Welded Aluminum 6061 Plates Using FEM

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