Fatigue strength of thin laser-hybrid welded full-scale deck structure

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Lillemäe, Ingrit
dc.contributor.author Liinalampi, Sami
dc.contributor.author Remes, Heikki
dc.contributor.author Itävuo, Antti
dc.contributor.author Niemelä, Ari
dc.date.accessioned 2016-12-16T14:15:27Z
dc.date.issued 2017
dc.identifier.citation Lillemäe , I , Liinalampi , S , Remes , H , Itävuo , A & Niemelä , A 2017 , ' Fatigue strength of thin laser-hybrid welded full-scale deck structure ' INTERNATIONAL JOURNAL OF FATIGUE , vol 95 , pp. 282-292 . DOI: 10.1016/j.ijfatigue.2016.11.012 en
dc.identifier.issn 0142-1123
dc.identifier.issn 1879-3452
dc.identifier.other PURE UUID: 721dcfd9-ab48-4395-90a5-46a94b220f13
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/fatigue-strength-of-thin-laserhybrid-welded-fullscale-deck-structure(721dcfd9-ab48-4395-90a5-46a94b220f13).html
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/11703973/1_s2.0_S0142112316303759_main.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/23803
dc.description.abstract The fatigue behavior of a 4-mm thick laser-hybrid welded structure was studied using small- and full-scale specimens. The aim of the work was to understand the response and fatigue strength of large thin welded structures. The difference and similarity between small- and full-scale specimens, which is crucial in order to transfer fatigue test results into fatigue design, was carefully studied. The experiments included accurate optical geometry measurements and constant amplitude fatigue testing under axial loading. The fatigue test results were analyzed in terms of structural hot spot stress. The results showed that when initial distortion shape and geometrical nonlinearity are properly considered, the small- and full-scale specimens have equal fatigue strength with small scatter and the same S-N curve slope close to m = 5. In addition, the measured fatigue strength is considerably higher in comparison to IIW structural stress design curve FAT100. This indicates that high fatigue strength can be achieved in thin laser-hybrid welded structures, given that the shape and the magnitude of initial distortion as well as the weld quality are controlled. en
dc.format.extent 282-292
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries INTERNATIONAL JOURNAL OF FATIGUE en
dc.relation.ispartofseries Volume 95 en
dc.rights openAccess en
dc.subject.other 216 Materials engineering en
dc.title Fatigue strength of thin laser-hybrid welded full-scale deck structure en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Mechanical Engineering
dc.contributor.department Meyer Turku Oy
dc.subject.keyword Fatigue strength
dc.subject.keyword Thin plate
dc.subject.keyword Butt joint
dc.subject.keyword Full-scale fatigue test
dc.subject.keyword Structural hot spot stress
dc.subject.keyword 216 Materials engineering
dc.identifier.urn URN:NBN:fi:aalto-201612165980
dc.identifier.doi 10.1016/j.ijfatigue.2016.11.012


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