Show simple item record

dc.contributor.authorXu, Jie
dc.contributor.authorSong, Wei
dc.contributor.authorCheng, Wenfeng
dc.contributor.authorChu, Lingyu
dc.contributor.authorGao, Hanlin
dc.contributor.authorLi, Pengpeng
dc.contributor.authorBerto, Filippo
dc.date.accessioned2022-05-04T11:37:32Z
dc.date.available2022-05-04T11:37:32Z
dc.date.created2020-09-23T17:26:59Z
dc.date.issued2020
dc.identifier.citationMetals. 2020, 10 (1), 1-14.en_US
dc.identifier.issn2075-4701
dc.identifier.urihttps://hdl.handle.net/11250/2994166
dc.description.abstractThis work presents an investigation of the effects of temperature and crack growth on cleavage fracture toughness for weld thermal simulated X80 pipeline steels in the ductile-to-brittle transition (DBT) regime. A great bulk of fracture toughness (crack tip opening displacement—CTOD) tests and numerical simulations are carried out by deep-cracked single-edge-notched bending (SENB) and shallow-cracked single-edge-notched tension (SENT) specimens at various temperatures (−90 °C, −60 °C, −30 °C, and 0 °C). Three-dimensional (3D) finite element (FE) models of tested specimens have been employed to obtain computational data. The results show that temperature exerts only a slight effect on the material hardening behavior, which indicates the crack tip constraint (as denoted by Q-parameter) is less dependent on the temperature. The measured CTOD-values give considerable scatter but confirm well-established trends of increasing toughness with increasing temperature and reducing constraint. Crack growth and 3D effect exhibited significant influences on CTOD-CMOD relations at higher temperatures, −30 °C and 0 °C for the SENT specimen.en_US
dc.language.isoengen_US
dc.publisherMDPIen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleModelling of fracture toughness of x80 pipeline steels in dtb transition region involving the effect of temperature and crack growthen_US
dc.title.alternativeModelling of fracture toughness of x80 pipeline steels in dtb transition region involving the effect of temperature and crack growthen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.source.pagenumber1-14en_US
dc.source.volume10en_US
dc.source.journalMetalsen_US
dc.source.issue1en_US
dc.identifier.doi10.3390/met10010028
dc.identifier.cristin1832713
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal