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Thermo-mechanical modelling of the Friction Stir Spot Welding process: Effect of the friction models on the heat generation mechanisms

2022-01Journal article Restricted access
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dc.contributor.authorHannachi, Nasra
dc.contributor.authorKHALFALLAH, ALI
dc.contributor.authorLeitao, Carlos
dc.contributor.authorRodrigues, Dulce
dc.date.accessioned2022-03-15T13:40:09Z
dc.date.available2022-03-15T13:40:09Z
dc.date.issued2022-01
dc.description.abstractFriction Stir Spot Welding involves complex physical phenomena, which are very difficult to probe experimentally. In this regard, the numerical simulation may play a key role to gain insight into this complex thermo-mechanical process. It is often used to mimic specific experimental conditions to forecast outputs that may be substantial to analyse and elucidate the mechanisms behind the Friction Stir Spot Welding process. This welding technique uses frictional heat generated by a rotating tool to join materials. The heat generation mechanisms are governed by a combination of sliding and sticking contact conditions. In the numerical simulation, these contact conditions are thoroughly dependent on the used friction model. Hence, a successful prediction of the process relies on the appropriate selection of the contact model and parameters. This work aims to identify the pros and cons of different friction models in modelling combined sliding-sticking conditions. A three-dimensional coupled thermo-mechanical FE model, based on a Coupled Eulerian-Lagrangian formulation, was developed. Different friction models are adopted to simulate the Friction Stir Spot Welding of the AA6082-T6 aluminium alloy. For these friction models, the temperature evolution, the heat generation, and the plastic deformation were analysed and compared with experimental results. It was realized that numerical analysis of Friction Stir Spot Welding can be effective and reliable as long as the interfacial friction characteristics are properly modelled. This approach may be used to guide the contact modelling strategy for the simulation of the Friction Stir Spot Welding process and its derivatives.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationHANNACHI, Nasra; [et al] – Thermo-mechanical modelling of the Friction Stir Spot Welding process: Effect of the friction models on the heat generation mechanisms. Proceedings of the Institution of Mechanical Engineers Part L – Journal of Materials Design and Applications. ISSN 1464-4207. (2022), pp. 1-12.pt_PT
dc.identifier.doi10.1177/14644207211070965pt_PT
dc.identifier.eissn2041-3076
dc.identifier.issn1464-4207
dc.identifier.urihttp://hdl.handle.net/10400.21/14471
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSage Publications Ltd.pt_PT
dc.relationUIDB/04029/2020 - FCT under the R&D Unit Institute for Sustainability and Innovation in Structural Engineering (ISISE)pt_PT
dc.relationUIDB/00285/2020 - FCT under the Centre for Mechanical Engineering, Materials and Processes (CEMMPRE)pt_PT
dc.relationPOCI-01-0145-FEDER-032089 - FCT under the project Friction 4.0pt_PT
dc.relationUID/EMS/00285/2020 - FCT / European Commissionpt_PT
dc.relationPTDC/EMEEME/31243/2017 - FCT, project RDFORMINGpt_PT
dc.relationPOCI-01-0145-FEDER-031243 - European Commissionpt_PT
dc.subjectFriction Stir Spot Welding (FSSW)pt_PT
dc.subjectFriction modelspt_PT
dc.subjectFinite Element Method (FEM)pt_PT
dc.subjectCoupled Eulerian-Lagrangian formulation (CEL)pt_PT
dc.subjectHeat generation mechanismspt_PT
dc.titleThermo-mechanical modelling of the Friction Stir Spot Welding process: Effect of the friction models on the heat generation mechanismspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage12pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleProceedings of the Institution of Mechanical Engineers Part L – Journal of Materials Design and Applicationspt_PT
person.familyNameHannachi
person.familyNameKHALFALLAH
person.familyNameLeitao
person.givenNameNasra
person.givenNameALI
person.givenNameCarlos
person.identifierF-1982-2014
person.identifier887124
person.identifier.ciencia-id8D17-18C9-EF2F
person.identifier.ciencia-id9E17-DA8F-CC8A
person.identifier.orcid0000-0003-0053-796X
person.identifier.orcid0000-0002-3234-8795
person.identifier.orcid0000-0003-0181-7146
person.identifier.ridF-1485-2010
person.identifier.scopus-author-id55638726900
person.identifier.scopus-author-id24331810700
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication55fdef52-5fb5-492a-8767-4733952adff7
relation.isAuthorOfPublication2e8d0aa0-d3ab-4dc8-ae41-3084ee27a509
relation.isAuthorOfPublication8c4ea166-8c3a-4b7a-a11d-de74a2677264
relation.isAuthorOfPublication.latestForDiscovery8c4ea166-8c3a-4b7a-a11d-de74a2677264

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