{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,2]],"date-time":"2026-02-02T07:46:58Z","timestamp":1770018418476,"version":"3.49.0"},"reference-count":35,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2016,1,25]],"date-time":"2016-01-25T00:00:00Z","timestamp":1453680000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Metals"],"abstract":"<jats:p>Metallic materials undergo many metallurgical changes when subjected to welding thermal cycles, and these changes have a considerable influence on the thermo-mechanical properties of welded structures. One method for evaluating the welding thermal cycle variables, while still in the project phase, would be simulation using computational methods. This paper presents an evaluation of the temperature field and residual stresses in a multipass weld of API 5L X80 steel, which is extensively used in oil and gas industry, using the Finite Element Method (FEM). In the simulation, the following complex phenomena were considered: the variation in physical and mechanical properties of the material as a function of the temperature, welding speed and convection and radiation mechanisms. Additionally, in order to characterize a multipass weld using the Gas Tungsten Arc Welding process for the root pass and the Shielded Metal Arc Welding process for the filling passes, the analytical heat source proposed by Goldak and Chakravarti was used. In addition, we were able to analyze the influence of the mesh refinement in the simulation results. The findings indicated a significant variation of about 50% in the peak temperature values. Furthermore, changes were observed in terms of the level and profile of the welded joint residual stresses when more than one welding pass was considered.<\/jats:p>","DOI":"10.3390\/met6020028","type":"journal-article","created":{"date-parts":[[2016,1,25]],"date-time":"2016-01-25T10:03:06Z","timestamp":1453716186000},"page":"28","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":21,"title":["Numerical Evaluation of Temperature Field and Residual Stresses in an API 5L X80 Steel Welded Joint Using the Finite Element Method"],"prefix":"10.3390","volume":"6","author":[{"given":"Jailson","family":"Da N\u00f3brega","sequence":"first","affiliation":[{"name":"Programa de P\u00f3s-Gradua\u00e7\u00e3o em Engenharia Mec\u00e2nica, Universidade Federal de Campina Grande (UFCG), Campina Grande-PB 58429-140, Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1275-809X","authenticated-orcid":false,"given":"Diego","family":"Diniz","sequence":"additional","affiliation":[{"name":"Universidade Federal Rural do Semi-\u00c1rido (UFERSA), Campus Cara\u00fabas, Cara\u00fabas-RN 59700-000, Brazil"}]},{"given":"Antonio","family":"Silva","sequence":"additional","affiliation":[{"name":"Programa de P\u00f3s-Gradua\u00e7\u00e3o em Engenharia Mec\u00e2nica, Universidade Federal de Campina Grande (UFCG), Campina Grande-PB 58429-140, Brazil"}]},{"given":"Theophilo","family":"Maciel","sequence":"additional","affiliation":[{"name":"Programa de P\u00f3s-Gradua\u00e7\u00e3o em Engenharia Mec\u00e2nica, Universidade Federal de Campina Grande (UFCG), Campina Grande-PB 58429-140, Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3886-4309","authenticated-orcid":false,"given":"Victor","family":"De Albuquerque","sequence":"additional","affiliation":[{"name":"Programa de P\u00f3s-Gradua\u00e7\u00e3o em Inform\u00e1tica Aplicada, Universidade de Fortaleza, Fortaleza-CE 60811-905, Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7603-6526","authenticated-orcid":false,"given":"Jo\u00e3o","family":"Tavares","sequence":"additional","affiliation":[{"name":"Instituto de Ci\u00eancia e Inova\u00e7\u00e3o em Engenharia Mec\u00e2nica e Industrial, Departamento de Engenharia Mec\u00e2nica, Universidade do Porto, Porto 4200-465, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2016,1,25]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Kovacevic, R. 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