Incorporation of temperature and plastic strain effects into local approach to fracture

Simple item page
dc.contributor.authorKotrechko, Sergiycs
dc.contributor.authorKozák, Vladislavcs
dc.contributor.authorZatsarna, Oleksandracs
dc.contributor.authorZimina, Galinacs
dc.contributor.authorStetsenko, Nataliyacs
dc.contributor.authorDlouhý, Ivocs
dc.coverage.issue20cs
dc.coverage.volume14cs
dc.date.accessioned2022-03-22T15:56:35Z
dc.date.available2022-03-22T15:56:35Z
dc.date.issued2021-10-15cs
dc.description.abstractAn unjustified simplification of the local quantitative criterion regarding cleavage nucleation is a key problem in the utilisation of the Local Approach to Fracture (LA), particularly to predict the fracture toughness within the ductile-to-brittle transition (DBT) region. The theoretical concept of the effect of both temperature and the plastic strain value on the crack nuclei (CN) generation rate in iron and ferritic steels is presented. It is shown how the plastic strain and temperature affect CN formation rate and, as a consequence, govern the shape of the temperature dependence of fracture toughness K-Jc and its scatter limits. Within the framework of the microscopic model proposed, dependences of the CN bulk density on the plastic deformation value and temperature are predicted. Convenient approximation dependences for incorporating this effect into the LA are suggested. The experimental data of reactor pressure vessel steel and cast manganese steel demonstrate that the use of these dependences enables one to predict, with sufficient accuracy, the effect of temperature on the value of fracture toughness and its scatter limits over the DBT region. It is shown that accounting for both the temperature and strain dependence of CN bulk density gives rise to the invariance of parameters of the Weibull distribution to temperature.en
dc.formattextcs
dc.format.extent1-11cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationMaterials . 2021, vol. 14, issue 20, p. 1-11.en
dc.identifier.doi10.3390/ma14206224cs
dc.identifier.issn1996-1944cs
dc.identifier.other176298cs
dc.identifier.urihttp://hdl.handle.net/11012/204028
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofMaterialscs
dc.relation.urihttps://www.mdpi.com/1996-1944/14/20/6224cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1996-1944/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectfracture toughnessen
dc.subjectductile-to-brittle transitionen
dc.subjectlocal approach to fractureen
dc.subjectferritic steelen
dc.titleIncorporation of temperature and plastic strain effects into local approach to fractureen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-176298en
sync.item.dbtypeVAVen
sync.item.insts2022.03.22 16:56:35en
sync.item.modts2022.03.22 16:14:56en
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Ústav matematiky a deskriptivní geometriecs
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
materials1406224v2.pdf
Size:
14.99 MB
Format:
Adobe Portable Document Format
Description:
materials1406224v2.pdf
Download
Collections
Ústav matematiky a deskriptivní geometrie