An Investigation of the Fatigue Strength of Multiple Cellular Structures Fabricated by Electron Beam Powder Bed Fusion Additive Manufacturing Process

dc.creatorOrange, Abigail
dc.creatorWu, Yan
dc.creatorYang, Li
dc.date.accessioned2021-11-09T20:10:24Z
dc.date.available2021-11-09T20:10:24Z
dc.date.issued2018
dc.description.abstractIn this study multiple cellular structures, including the re-entrant auxetic, the octet-truss, and the BCC lattice, were evaluated for their relative performance of fatigue strength under compression-compression cyclic loading. Various design variations with different dimensions were fabricated via electron beam powder bed fusion (EB-PBF) additive manufacturing (AM) process and experimentally tested. Initial S-N based fatigue strength characterization with the BCC lattice shows significantly decreased fatigue strength of the cellular parts compared to the solid samples. Cross-design comparison were consequently carried out using constant maximum stress ratio level. The results indicate that the fatigue characteristics of the EB-PBF cellular structures are not only dependent on their topology types but also their geometry dimensions.en_US
dc.description.departmentMechanical Engineeringen_US
dc.identifier.urihttps://hdl.handle.net/2152/90152
dc.identifier.urihttp://dx.doi.org/10.26153/tsw/17073
dc.language.isoengen_US
dc.publisherUniversity of Texas at Austinen_US
dc.relation.ispartof2018 International Solid Freeform Fabrication Symposiumen_US
dc.rights.restrictionOpenen_US
dc.subjectfatigue strengthen_US
dc.subjectcellular structuresen_US
dc.subjectcompression-compression cyclic loadingen_US
dc.subjectelectron beam powder bed fusionen_US
dc.subjectEB-PBFen_US
dc.subjectadditive manufacturingen_US
dc.titleAn Investigation of the Fatigue Strength of Multiple Cellular Structures Fabricated by Electron Beam Powder Bed Fusion Additive Manufacturing Processen_US
dc.typeConference paperen_US

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