Branco, R.Costa, J. D.Jesus, J.Berto, F.Ferreira, J. A. MartinsCapela, C.2026-04-172026-04-172022R. Branco, J.D. Costa, J. Jesus, F. Berto, J.A. Martins Ferreira, C. Capela, Prediction of multiaxial fatigue life of notched maraging steel components manufactured by selective laser melting, Procedia Structural Integrity, Volume 39, 2022, Pages 273-280, ISSN 2452-3216, https://doi.org/10.1016/j.prostr.2022.03.097.http://hdl.handle.net/10400.8/16144This 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.engmultiaxial fatiguefatigue crack initiationmaraging steelselective laser meltingjournal article10.1016/j.prostr.2022.03.0972452-3216