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https://hdl.handle.net/10316/101035
Título: | Prediction of multiaxial fatigue life of notched maraging steel components manufactured by selective laser melting | Autor: | Branco, R. Costa, J. D. Jesus, J. S. de Berto, F. Ferreira, J. A. Martins Capela, C. |
Palavras-chave: | multiaxial fatigue; fatigue crack initiation; maraging steel; selective laser melting | Data: | 2022 | Projeto: | FEDER/FCT - UIDB/00285/2020 | Título da revista, periódico, livro ou evento: | Procedia Structural Integrity | Volume: | 39 | Resumo: | This paper aims at predicting the fatigue crack initiation life in maraging steel manufactured by selective laser melting under in-phase bending-torsion loading. Three relationships between the bending moment and the torsion moment were studied, namely B/T=2, B/T=1, and B/T=2/3. The tested geometries consisted of hollow cylindrical specimens with lateral holes. The crack initiation and the crack paths were detected in-situ using a high-resolution digital camera. The local stress-strain states at the notch region were accounted for using two alternative numerical models developed within linear-elastic frameworks: (1) a parametric structured mesh; and (2) an automatic unstructured mesh. Fatigue crack initiation sites and fatigue crack initiation lives were successfully predicted using both numerical models. | URI: | https://hdl.handle.net/10316/101035 | ISSN: | 24523216 | DOI: | 10.1016/j.prostr.2022.03.097 | Direitos: | openAccess |
Aparece nas coleções: | I&D CEMMPRE - Artigos em Revistas Internacionais |
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Ficheiro | Descrição | Tamanho | Formato | |
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1-s2.0-S2452321622003109-main.pdf | 615.32 kB | Adobe PDF | Ver/Abrir |
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