dc.contributor.author | Tu, Shengwen | |
dc.contributor.author | Ren, Xiaobo | |
dc.contributor.author | Nyhus, Bård | |
dc.contributor.author | Akselsen, Odd Magne | |
dc.contributor.author | He, Jianying | |
dc.contributor.author | Zhang, Zhiliang | |
dc.date.accessioned | 2019-05-06T12:20:24Z | |
dc.date.available | 2019-05-06T12:20:24Z | |
dc.date.created | 2017-04-28T17:14:07Z | |
dc.date.issued | 2017 | |
dc.identifier.citation | Engineering Fracture Mechanics. 2017, 179 225-239. | nb_NO |
dc.identifier.issn | 0013-7944 | |
dc.identifier.uri | http://hdl.handle.net/11250/2596616 | |
dc.description.abstract | Structural integrity assessment of weldments requires the input of flow stress-strain curve of each individual material zone. To cope with these challenges, a cylindrical cross weld tensile specimen with a notch located either in the weld metal, base metal or possibly heat affected zone has been previously developed by the authors to determine the true stress-strain curve for the material zone of interest. The disadvantage of this notched tensile testing method as well as the standard tensile testing method using a smooth specimen, is that the well-known Bridgman correction still has to be applied in order to obtain material’s equivalent or flow stress-strain curves. In this study, tensile specimens with various notch geometries have been scrutinized and a ‘magic’ specimen with a special notch geometry has been identified. By using this special notched tensile specimen, material’s flow stress-strain curve can be directly calculated from the recorded load versus diameter reduction curve and no Bridgman correction is needed. The method is very accurate for power-law hardening materials and becomes less accurate for materials with significant Lüders plateau in the initial yield region. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.publisher | Elsevier | nb_NO |
dc.title | A special notched tensile specimen to determine the flow stress-strain curve of hardening materials without applying the Bridgman correction | nb_NO |
dc.title.alternative | A special notched tensile specimen to determine the flow stress-strain curve of hardening materials without applying the Bridgman correction | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.description.version | publishedVersion | nb_NO |
dc.source.pagenumber | 225-239 | nb_NO |
dc.source.volume | 179 | nb_NO |
dc.source.journal | Engineering Fracture Mechanics | nb_NO |
dc.identifier.doi | 10.1016/j.engfracmech.2017.04.039 | |
dc.identifier.cristin | 1467315 | |
dc.relation.project | Norges forskningsråd: 228513 | nb_NO |
dc.description.localcode | This article will not be available due to copyright restrictions (c) 2017 by Elsevier | nb_NO |
cristin.unitcode | 194,64,45,0 | |
cristin.unitname | Institutt for konstruksjonsteknikk | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |