Print Email Facebook Twitter Probabilistic strain-fatigue life performance based on stochastic analysis of structural and WAAM-stainless steels Title Probabilistic strain-fatigue life performance based on stochastic analysis of structural and WAAM-stainless steels Author Xin, H. (TU Delft Concrete Structures; Xi’an Jiaotong University) Correia, José A.F.O. (Universidade do Porto) Veljkovic, M. (TU Delft Steel & Composite Structures) Zhang, Youyou (Xi’an Jiaotong University) Berto, Filippo (Norwegian University of Science and Technology (NTNU)) de Jesus, Abílio M.P. (Universidade do Porto) Date 2021 Abstract Wire arc additive manufacturing (WAAM) has increasingly attracted attention in the construction sector because of its ability to produce large metallic structural parts in short times. In this paper, Coffin-Manson and Morrow (CMM) equation is employed to compare the fatigue life of WAAM stainless steel with the structural steels S355 and S690. The results showed that the fatigue performance of structural steel is better than the WAAM stainless steel, the fatigue performance vertical to printing direction (WAAM-900) is better than it along the printing direction (WAAM-00). In addition, the fatigue cycle of the transition reversals of structural steel is much less than it of WAAM stainless. With the increasing the fatigue cycle, the maximum density of the strain amplitude ratio is gradually increased to 1.0. The probabilistic parameters of CMM equation were obtained by a stochastic analysis using Latin hypercube sampling strategies. The probabilistic strain-fatigue life behaviour obtained from the constant exponent sampling strategy is higher when compared with the varied exponent sampling strategy for both WAAM stainless and structural steels. Subject Coffin-Manson and Morrow's (CMM) equationLatin hypercube sampling strategyProbabilistic fatigue behaviourStructural steelsWire arc additive manufacturing (WAAM) stainless steel To reference this document use: http://resolver.tudelft.nl/uuid:874fbae4-de1f-46d4-adf3-7a1789c4d6ee DOI https://doi.org/10.1016/j.engfailanal.2021.105495 Embargo date 2021-11-19 ISSN 1350-6307 Source Engineering Failure Analysis, 127, 1-20 Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2021 H. Xin, José A.F.O. Correia, M. Veljkovic, Youyou Zhang, Filippo Berto, Abílio M.P. de Jesus Files PDF 1_s2.0_S1350630721003551_main.pdf 6.82 MB Close viewer /islandora/object/uuid:874fbae4-de1f-46d4-adf3-7a1789c4d6ee/datastream/OBJ/view