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Effect of Welding Defects on Fatigue Properties of SWA490BW Steel Cruciform Welded Joints
Welding is prone to several defects. To test the fatigue properties of the welded defective joints of high-speed rail bogies, SMA490BW steel cruciform welded joints were employed with artificial defects treatment. Consequently, fatigue tests were conducted on the specimens. Fatigue fracture morpholo...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10342622/ https://www.ncbi.nlm.nih.gov/pubmed/37445065 http://dx.doi.org/10.3390/ma16134751 |
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author | Xu, Xingyuan Xie, Liyang Zhou, Song An, Jinlan Huang, Yanqing Liu, Youcheng Jin, Lei |
author_facet | Xu, Xingyuan Xie, Liyang Zhou, Song An, Jinlan Huang, Yanqing Liu, Youcheng Jin, Lei |
author_sort | Xu, Xingyuan |
collection | PubMed |
description | Welding is prone to several defects. To test the fatigue properties of the welded defective joints of high-speed rail bogies, SMA490BW steel cruciform welded joints were employed with artificial defects treatment. Consequently, fatigue tests were conducted on the specimens. Fatigue fracture morphology was studied via scanning electron microscopy. The ABAQUS (version 2022) finite element software was used to calculate the stress distribution and concentration factor of cruciform welded joints with defects. The results show that the fatigue limits of 1 and 2.4 mm defect specimens were approximately 57.2 and 53.75 Mpa, respectively. Furthermore, the stress concentration factor of no, 1 mm, and 2.4 mm defects were 2.246, 4.441, and 6.684, respectively, indicating that the stress concentration factor of 1 and 2.4 mm defects increased by 98 and 198%, respectively, with respect to the no-defect case. |
format | Online Article Text |
id | pubmed-10342622 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-103426222023-07-14 Effect of Welding Defects on Fatigue Properties of SWA490BW Steel Cruciform Welded Joints Xu, Xingyuan Xie, Liyang Zhou, Song An, Jinlan Huang, Yanqing Liu, Youcheng Jin, Lei Materials (Basel) Article Welding is prone to several defects. To test the fatigue properties of the welded defective joints of high-speed rail bogies, SMA490BW steel cruciform welded joints were employed with artificial defects treatment. Consequently, fatigue tests were conducted on the specimens. Fatigue fracture morphology was studied via scanning electron microscopy. The ABAQUS (version 2022) finite element software was used to calculate the stress distribution and concentration factor of cruciform welded joints with defects. The results show that the fatigue limits of 1 and 2.4 mm defect specimens were approximately 57.2 and 53.75 Mpa, respectively. Furthermore, the stress concentration factor of no, 1 mm, and 2.4 mm defects were 2.246, 4.441, and 6.684, respectively, indicating that the stress concentration factor of 1 and 2.4 mm defects increased by 98 and 198%, respectively, with respect to the no-defect case. MDPI 2023-06-30 /pmc/articles/PMC10342622/ /pubmed/37445065 http://dx.doi.org/10.3390/ma16134751 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Xu, Xingyuan Xie, Liyang Zhou, Song An, Jinlan Huang, Yanqing Liu, Youcheng Jin, Lei Effect of Welding Defects on Fatigue Properties of SWA490BW Steel Cruciform Welded Joints |
title | Effect of Welding Defects on Fatigue Properties of SWA490BW Steel Cruciform Welded Joints |
title_full | Effect of Welding Defects on Fatigue Properties of SWA490BW Steel Cruciform Welded Joints |
title_fullStr | Effect of Welding Defects on Fatigue Properties of SWA490BW Steel Cruciform Welded Joints |
title_full_unstemmed | Effect of Welding Defects on Fatigue Properties of SWA490BW Steel Cruciform Welded Joints |
title_short | Effect of Welding Defects on Fatigue Properties of SWA490BW Steel Cruciform Welded Joints |
title_sort | effect of welding defects on fatigue properties of swa490bw steel cruciform welded joints |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10342622/ https://www.ncbi.nlm.nih.gov/pubmed/37445065 http://dx.doi.org/10.3390/ma16134751 |
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