The influence of inelastic pre-straining on fracture toughness behaviour of Type 316H stainless steel

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dc.contributor.authorMehmanparast, Ali
dc.contributor.authorDavies, Catrin M.
dc.date.accessioned2017-09-15T10:54:40Z
dc.date.available2017-09-15T10:54:40Z
dc.date.issued2017-08-08
dc.description.abstractThe effects of inelastic deformation, in the form of plastic and creep pre-strain, on the fracture toughness behaviour of Type 316H stainless steel have been investigated in this study. Material pre-conditioning effects on the strain distribution fields ahead of the crack tip have been investigated using digital image correlation technique. Fracture toughness tests have been performed on compact tension specimens made of the as-received, plastic pre-strained and creep pre-strained materials. The influences of specimen side groove and pre-cracking type on the fracture toughness behaviour of 316H stainless steel have also been examined. The test results have shown that the fracture toughness values decrease by increasing the percentage of inelastic pre-strain introduced into the material. Moreover, the generated R-curves and the subsequent fracture toughness values have been found sensitive to the specimen side groove. Finally, it has been observed that local creep damage has more severe impact on the fracture toughness of the material compared to global creep deformation.en_UK
dc.identifier.citationMehmanparast A, Davies C, The influence of inelastic pre-straining on fracture toughness behaviour of Type 316H stainless steel, Engineering Fracture Mechanics, Volume 188, 1 February 2018, Pages 112-125en_UK
dc.identifier.cris18485285
dc.identifier.issn0013-7944
dc.identifier.urihttp://dx.doi.org/10.1016/j.engfracmech.2017.08.001
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/12497
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectFracture toughnessen_UK
dc.subjectDigital image correlationen_UK
dc.subjectPlastic pre-strainen_UK
dc.subjectCreep pre-strainen_UK
dc.titleThe influence of inelastic pre-straining on fracture toughness behaviour of Type 316H stainless steelen_UK
dc.typeArticleen_UK

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