Finite element analysis of the effect of porosity on residual stress in 2024 aluminium alloy GTAW

© 2020 The Author(s). Published by IOP Publishing Ltd. Simulations of the welding process for butt joints using finite element analysis (FEA) of the effect of porosity are presented. The metal used was aluminium alloy (grade 2024), and the filler material was alloy ER5356. The simulations were perfo...

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Main Authors: Pattarawadee Poolperm, Wasawat Nakkiew, Nirut Naksuk
Format: Journal
Published: 2020
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http://cmuir.cmu.ac.th/jspui/handle/6653943832/70682
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spelling th-cmuir.6653943832-706822020-10-14T08:38:33Z Finite element analysis of the effect of porosity on residual stress in 2024 aluminium alloy GTAW Pattarawadee Poolperm Wasawat Nakkiew Nirut Naksuk Materials Science © 2020 The Author(s). Published by IOP Publishing Ltd. Simulations of the welding process for butt joints using finite element analysis (FEA) of the effect of porosity are presented. The metal used was aluminium alloy (grade 2024), and the filler material was alloy ER5356. The simulations were performed using the commercial software ANSYS, considering a double ellipsoid heat source, temperature-dependent material properties, material deposits, mechanical analysis, transient heat transfer, and defects (porosity). In this study, the FEA simulations were constructed for two types of heat source (single- and double-ellipsoid) used in gas tungsten arc welding (GTAW), and the calculated residual stress results were compared with the experimental values. Two double ellipsoid models were constructed for cases with and without porosity. The porosity was measured by three-dimensional (3D) computed tomography (CT), and the size and location of pores were mapped onto the weld bead created by the birth-and-death technique. 2020-10-14T08:38:33Z 2020-10-14T08:38:33Z 2020-05-01 Journal 20531591 2-s2.0-85085271061 10.1088/2053-1591/ab906a https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85085271061&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/70682
institution Chiang Mai University
building Chiang Mai University Library
continent Asia
country Thailand
Thailand
content_provider Chiang Mai University Library
collection CMU Intellectual Repository
topic Materials Science
spellingShingle Materials Science
Pattarawadee Poolperm
Wasawat Nakkiew
Nirut Naksuk
Finite element analysis of the effect of porosity on residual stress in 2024 aluminium alloy GTAW
description © 2020 The Author(s). Published by IOP Publishing Ltd. Simulations of the welding process for butt joints using finite element analysis (FEA) of the effect of porosity are presented. The metal used was aluminium alloy (grade 2024), and the filler material was alloy ER5356. The simulations were performed using the commercial software ANSYS, considering a double ellipsoid heat source, temperature-dependent material properties, material deposits, mechanical analysis, transient heat transfer, and defects (porosity). In this study, the FEA simulations were constructed for two types of heat source (single- and double-ellipsoid) used in gas tungsten arc welding (GTAW), and the calculated residual stress results were compared with the experimental values. Two double ellipsoid models were constructed for cases with and without porosity. The porosity was measured by three-dimensional (3D) computed tomography (CT), and the size and location of pores were mapped onto the weld bead created by the birth-and-death technique.
format Journal
author Pattarawadee Poolperm
Wasawat Nakkiew
Nirut Naksuk
author_facet Pattarawadee Poolperm
Wasawat Nakkiew
Nirut Naksuk
author_sort Pattarawadee Poolperm
title Finite element analysis of the effect of porosity on residual stress in 2024 aluminium alloy GTAW
title_short Finite element analysis of the effect of porosity on residual stress in 2024 aluminium alloy GTAW
title_full Finite element analysis of the effect of porosity on residual stress in 2024 aluminium alloy GTAW
title_fullStr Finite element analysis of the effect of porosity on residual stress in 2024 aluminium alloy GTAW
title_full_unstemmed Finite element analysis of the effect of porosity on residual stress in 2024 aluminium alloy GTAW
title_sort finite element analysis of the effect of porosity on residual stress in 2024 aluminium alloy gtaw
publishDate 2020
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85085271061&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/70682
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