Show simple item record

dc.contributor.authorTu, Shengwen
dc.contributor.authorRen, Xiaobo
dc.contributor.authorHe, Jianying
dc.contributor.authorZhang, Zhiliang
dc.date.accessioned2020-12-07T13:38:53Z
dc.date.available2020-12-07T13:38:53Z
dc.date.created2018-11-07T11:28:42Z
dc.date.issued2018
dc.identifier.issn0376-9429
dc.identifier.urihttps://hdl.handle.net/11250/2712219
dc.description.abstractThe increasing demand of energy prompts the petroleum industry exploitation activities to the Arctic region where the low temperature is a strong challenge, both for structural design and material selection. For structural materials exhibiting the Lüders plateau, it has been reported that lowering the temperature will increase the Lüders plateau length. In order to obtain a deep understanding of the Lüders plateau effect on ductile crack growth resistance, we performed numerical analyses with SENT specimens and the Gurson damage model. The Lüders plateau was simplified by keeping the flow stress constant and varying the plateau length. The results show that the existence of the Lüders plateau does not influence the initiation toughness, however, will alter the material’s fracture resistance significantly. It is found that the Lüders plateau effect is in general controlled by the stress triaxiality level in front of the crack tip. Both the strain hardening and the crack depth effects on resistance curves are alleviated due to the Lüders plateau. For materials with very small initial void volume fraction, the Lüders plateau effect is more pronounced. Since the Lüders plateau intensifies the crack driving force and may lower down crack resistance curve, special attention should be paid to the application of materials with the Lüders plateau in the Arctic.en_US
dc.language.isoengen_US
dc.publisherSpringeren_US
dc.titleNumerical study on the effect of the Lüders plateau on the ductile crack growth resistance of SENT specimensen_US
dc.title.alternativeNumerical study on the effect of the Lüders plateau on the ductile crack growth resistance of SENT specimensen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionacceptedVersionen_US
dc.rights.holderThis is a post-peer-review, pre-copyedit version of an article published in International Journal of Fracture. The final authenticated version is available online at: https://doi.org/10.1007/s10704-018-0327-2en_US
dc.source.pagenumber185–200en_US
dc.source.volume214en_US
dc.source.journalInternational Journal of Fractureen_US
dc.identifier.doi10.1007/s10704-018-0327-2
dc.identifier.cristin1627860
cristin.unitcode7401,80,6,5
cristin.unitnameMaterialers integritet og sveising
cristin.ispublishedfalse
cristin.fulltextpreprint
cristin.qualitycode1


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record