Fatigue life assessment of wire arc additively manufactured ER100S-1 steel parts
Ermakova, Anna and Razavi, Javad and Berto, Filippo and Mehmanparast, Ali (2023) Fatigue life assessment of wire arc additively manufactured ER100S-1 steel parts. Progress in Additive Manufacturing, 8 (6). pp. 1329-1340. ISSN 2363-9520 (https://doi.org/10.1007/s40964-023-00400-3)
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Abstract
The aim of this work was to examine uniaxial, torsion, and multi-axial fatigue characteristics of ER100S-1 low carbon steel specimens fabricated with wire arc additive manufacturing (WAAM) technique, a subcategory of directed energy deposition (DED). Two distinct specimen orientations were tested—vertical and horizontal, extracted perpendicular and parallel to the WAAM deposited layers, respectively. Fracture surfaces of the tested specimens were analysed under scanning electron microscope (SEM) to observe fracture mechanisms corresponding to different specimen orientations, different fatigue loading conditions, and to interpret the fatigue results obtained from the tests. Finally, the obtained stress–life results were compared with the fatigue data available in the literature for a series of wrought and WAAM-built structural steel specimens. Moreover, the S–N curves obtained in this study were evaluated against the fatigue design curve recommended for offshore marine welded structures in DNV standard. Test results have shown advantageous characteristics of WAAM-built ER100S-1 specimens compared with behaviours of other structural steels and conservative prediction of its fatigue life by the design curve available in the DNV standard.
ORCID iDs
Ermakova, Anna, Razavi, Javad, Berto, Filippo and Mehmanparast, Ali ORCID: https://orcid.org/0000-0002-7099-7956;-
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Item type: Article ID code: 83764 Dates: DateEventDecember 2023Published17 January 2023Published Online7 January 2023AcceptedSubjects: Technology > Hydraulic engineering. Ocean engineering
Naval Science > Naval architecture. Shipbuilding. Marine engineeringDepartment: Faculty of Engineering > Naval Architecture, Ocean & Marine Engineering Depositing user: Pure Administrator Date deposited: 19 Jan 2023 15:19 Last modified: 26 Oct 2024 00:40 URI: https://strathprints.strath.ac.uk/id/eprint/83764