Publicação
A comparative study of analytical rosenthal, finite element, and experimental approaches in laser welding of aa5456 alloy
| Resumo: | The thermal regime and microstructural phenomenon are studied by using finite-element (FE) modelling and the analytical Rosenthal equation during laser welding of aluminum alloy 5456 (AA5456) components. A major goal is to determine the merits and demerits of this analytical equation which can be an alternative to FE analysis, and to evaluate the effect of imperative assumptions on predicted consequences. Using results from the analytical and numerical approaches in conjunction with experiments, different physical features are compared. In this study, the results obtained from experiments in terms of melt pool shapes are compared with the predicted ones achieved from the numerical and analytical approaches in which the FE model is more accurate than the Rosenthal equation in the estimation of the melt pool dimensions. Furthermore, as to the partially melted zones, the estimations achieved from the numerical modeling are more genuine than ones from the analytical equation with regards to the experimental results. At high energy density, near keyhole welding mode, the reported results show that experimental melt widths are supposed to be narrower than the fusion widths estimated by the analytical solution. The primary explanation could be the influence of thermal losses that occurred during convection and radiation, which are neglected in the Rosenthal equation. Additionally, the primary dendrite arm spacing (PDAS) estimated with the numerical modeling and the analytical Rosenthal solution is comparable with the experimental results obtained. |
|---|---|
| Autores principais: | Hekmatjou, Hamidreza |
| Outros Autores: | Zeng, Zhi; Shen, Jiajia; Oliveira, João Pedro; Naffakh-Moosavy, Homam |
| Assunto: | AA5456 Analytical Rosenthal equation Laser welding Microstructure Numerical finite-element modeling Thermal regime General Materials Science |
| Ano: | 2020 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade Nova de Lisboa |
| Idioma: | inglês |
| Origem: | Repositório Institucional da UNL |
| _version_ | 1868983280748986368 |
|---|---|
| author | Hekmatjou, Hamidreza |
| author2 | Zeng, Zhi Shen, Jiajia Oliveira, João Pedro Naffakh-Moosavy, Homam |
| author2_role | author author author author |
| author_facet | Hekmatjou, Hamidreza Zeng, Zhi Shen, Jiajia Oliveira, João Pedro Naffakh-Moosavy, Homam |
| author_role | author |
| contributor_name_str_mv | DEMI - Departamento de Engenharia Mecânica e Industrial UNIDEMI - Unidade de Investigação e Desenvolvimento em Engenharia Mecânica e Industrial Elsevier Science B.V., Amsterdam. RUN |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Hekmatjou, Hamidreza\"},{\"Person.name\":\"Zeng, Zhi\"},{\"Person.name\":\"Shen, Jiajia\"},{\"Person.name\":\"Oliveira, João Pedro\"},{\"Person.name\":\"Naffakh-Moosavy, Homam\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | DEMI - Departamento de Engenharia Mecânica e Industrial UNIDEMI - Unidade de Investigação e Desenvolvimento em Engenharia Mecânica e Industrial Elsevier Science B.V., Amsterdam. RUN |
| datacite.creators.creator.creatorName.fl_str_mv | Hekmatjou, Hamidreza Zeng, Zhi Shen, Jiajia Oliveira, João Pedro Naffakh-Moosavy, Homam |
| datacite.date.Accepted.fl_str_mv | 2020-04-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2020-06-25T00:13:49Z |
| datacite.date.embargoed.fl_str_mv | 2020-06-25T00:13:49Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | AA5456 Analytical Rosenthal equation Laser welding Microstructure Numerical finite-element modeling Thermal regime General Materials Science |
| datacite.titles.title.fl_str_mv | A comparative study of analytical rosenthal, finite element, and experimental approaches in laser welding of aa5456 alloy |
| dc.contributor.none.fl_str_mv | DEMI - Departamento de Engenharia Mecânica e Industrial UNIDEMI - Unidade de Investigação e Desenvolvimento em Engenharia Mecânica e Industrial Elsevier Science B.V., Amsterdam. RUN |
| dc.creator.none.fl_str_mv | Hekmatjou, Hamidreza Zeng, Zhi Shen, Jiajia Oliveira, João Pedro Naffakh-Moosavy, Homam |
| dc.date.Accepted.fl_str_mv | 2020-04-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2020-06-25T00:13:49Z |
| dc.date.embargoed.fl_str_mv | 2020-06-25T00:13:49Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10362/99915 |
| dc.language.none.fl_str_mv | eng |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | AA5456 Analytical Rosenthal equation Laser welding Microstructure Numerical finite-element modeling Thermal regime General Materials Science |
| dc.title.fl_str_mv | A comparative study of analytical rosenthal, finite element, and experimental approaches in laser welding of aa5456 alloy |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | The thermal regime and microstructural phenomenon are studied by using finite-element (FE) modelling and the analytical Rosenthal equation during laser welding of aluminum alloy 5456 (AA5456) components. A major goal is to determine the merits and demerits of this analytical equation which can be an alternative to FE analysis, and to evaluate the effect of imperative assumptions on predicted consequences. Using results from the analytical and numerical approaches in conjunction with experiments, different physical features are compared. In this study, the results obtained from experiments in terms of melt pool shapes are compared with the predicted ones achieved from the numerical and analytical approaches in which the FE model is more accurate than the Rosenthal equation in the estimation of the melt pool dimensions. Furthermore, as to the partially melted zones, the estimations achieved from the numerical modeling are more genuine than ones from the analytical equation with regards to the experimental results. At high energy density, near keyhole welding mode, the reported results show that experimental melt widths are supposed to be narrower than the fusion widths estimated by the analytical solution. The primary explanation could be the influence of thermal losses that occurred during convection and radiation, which are neglected in the Rosenthal equation. Additionally, the primary dendrite arm spacing (PDAS) estimated with the numerical modeling and the analytical Rosenthal solution is comparable with the experimental results obtained. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| fulltext.url.fl_str_mv | https://run.unl.pt/bitstreams/19a94576-6460-4ee7-8d6d-b1c4cd76f8cd/download |
| id | run_6eeea3d11d27f6b3f8774e48293cdb61 |
| identifier.url.fl_str_mv | http://hdl.handle.net/10362/99915 |
| inst_facet_str | urn:organizationAcronym:unl{{{_:::_}}}Universidade Nova de Lisboa |
| instacron_str | unl |
| institution | Universidade Nova de Lisboa |
| instname_str | Universidade Nova de Lisboa |
| language | eng |
| network_acronym_str | run |
| network_name_str | Repositório Institucional da UNL |
| oai_identifier_str | oai:run.unl.pt:10362/99915 |
| organization_str_mv | urn:organizationAcronym:unl |
| person_str_mv | Hekmatjou, Hamidreza Zeng, Zhi Shen, Jiajia Oliveira, João Pedro Naffakh-Moosavy, Homam |
| publishDate | 2020 |
| repo_facet_str | urn:repositoryAcronym:run{{{_:::_}}}Repositório Institucional da UNL |
| reponame_str | Repositório Institucional da UNL |
| repository_id_str | urn:repositoryAcronym:run |
| service_str_mv | urn:repositoryAcronym:run |
| spelling | engenThe thermal regime and microstructural phenomenon are studied by using finite-element (FE) modelling and the analytical Rosenthal equation during laser welding of aluminum alloy 5456 (AA5456) components. A major goal is to determine the merits and demerits of this analytical equation which can be an alternative to FE analysis, and to evaluate the effect of imperative assumptions on predicted consequences. Using results from the analytical and numerical approaches in conjunction with experiments, different physical features are compared. In this study, the results obtained from experiments in terms of melt pool shapes are compared with the predicted ones achieved from the numerical and analytical approaches in which the FE model is more accurate than the Rosenthal equation in the estimation of the melt pool dimensions. Furthermore, as to the partially melted zones, the estimations achieved from the numerical modeling are more genuine than ones from the analytical equation with regards to the experimental results. At high energy density, near keyhole welding mode, the reported results show that experimental melt widths are supposed to be narrower than the fusion widths estimated by the analytical solution. The primary explanation could be the influence of thermal losses that occurred during convection and radiation, which are neglected in the Rosenthal equation. Additionally, the primary dendrite arm spacing (PDAS) estimated with the numerical modeling and the analytical Rosenthal solution is comparable with the experimental results obtained.application/pdfenA comparative study of analytical rosenthal, finite element, and experimental approaches in laser welding of aa5456 alloyHekmatjou, HamidrezaZeng, ZhiShen, JiajiaOliveira, João PedroNaffakh-Moosavy, HomamDEMI - Departamento de Engenharia Mecânica e IndustrialUNIDEMI - Unidade de Investigação e Desenvolvimento em Engenharia Mecânica e IndustrialElsevier Science B.V., Amsterdam.HostingInstitutionOrganizationalRUNe-mailmailto:run@unl.ptrun@unl.ptISSNIsPartOf0379-6779URNIsPartOfPURE: 18746895URNIsPartOfPURE UUID: e02c8132-92d8-45ac-b37c-1d932b5047e9URNIsPartOfScopus: 85084664964URNIsPartOfWOS: 000531826500015URNIsPartOfORCID: /0000-0001-6906-1870/work/76193707DOIIsPartOf10.3390/met100404362020-06-25T00:13:49Z2020-042020-04-01T00:00:00ZHandlehttp://hdl.handle.net/10362/99915http://purl.org/coar/access_right/c_abf2open accessAA5456Analytical Rosenthal equationLaser weldingMicrostructureNumerical finite-element modelingThermal regimeGeneral Materials Science6227140 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal articlehttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://run.unl.pt/bitstreams/19a94576-6460-4ee7-8d6d-b1c4cd76f8cd/download |
| spellingShingle | A comparative study of analytical rosenthal, finite element, and experimental approaches in laser welding of aa5456 alloy Hekmatjou, Hamidreza AA5456 Analytical Rosenthal equation Laser welding Microstructure Numerical finite-element modeling Thermal regime General Materials Science |
| status | SINGLETON |
| subject.fl_str_mv | AA5456 Analytical Rosenthal equation Laser welding Microstructure Numerical finite-element modeling Thermal regime General Materials Science |
| title | A comparative study of analytical rosenthal, finite element, and experimental approaches in laser welding of aa5456 alloy |
| title_full | A comparative study of analytical rosenthal, finite element, and experimental approaches in laser welding of aa5456 alloy |
| title_fullStr | A comparative study of analytical rosenthal, finite element, and experimental approaches in laser welding of aa5456 alloy |
| title_full_unstemmed | A comparative study of analytical rosenthal, finite element, and experimental approaches in laser welding of aa5456 alloy |
| title_short | A comparative study of analytical rosenthal, finite element, and experimental approaches in laser welding of aa5456 alloy |
| title_sort | A comparative study of analytical rosenthal, finite element, and experimental approaches in laser welding of aa5456 alloy |
| topic | AA5456 Analytical Rosenthal equation Laser welding Microstructure Numerical finite-element modeling Thermal regime General Materials Science |
| topic_facet | AA5456 Analytical Rosenthal equation Laser welding Microstructure Numerical finite-element modeling Thermal regime General Materials Science |
| url | http://hdl.handle.net/10362/99915 |
| visible | 1 |