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dc.contributor.authorLi, Yang
dc.contributor.authorRen, Xiaobo
dc.contributor.authorHe, Jianying
dc.contributor.authorZhang, Zhiliang
dc.description.abstractThe effect of residual stress on fracture of materials or structures has been widely studied. However, its influence on ductile-to-brittle transition (DBT), a crucial phenomenon of structural materials, has rarely been investigated so far. In the present study, employing the eigenstrain method residual stresses are introduced into a bi-material specimen, where two configurations of crack and interface, e.g., one with interface perpendicular and one parallel to the crack extension, are designed to study the influence of residual stress. The DBT of the bi-material specimen in the presence of residual stresses is numerically studied by using the CAFE method where temperature dependent surface energy is implemented to calculate absorbed energy of Charpy impact testing specimen. It is found that residual stress generated in the two configurations affect the DBT in a similar manner. The DBT curves generally shift to higher temperature due to the decrease of absorbed energy with the increase of residual stress. It is found that the decrease of absorbed energy in both configurations is caused by the additional constraint on the notch root, which is induced by the residual stress and can facilitate the fracture.en_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rightsNavngivelse 4.0 Internasjonal*
dc.subjectCoefficient of thermal expansion (CTE)en_US
dc.subjectResidual stress;en_US
dc.subjectCellular automata finite element (CAFE) methoden_US
dc.subjectDuctile-to-brittle transition (DBT)en_US
dc.subjectAbsorbed energy;en_US
dc.titleEffect of Thermal Residual Stresses on Ductile-to-Brittle Transition of a Bi-material Specimen by Using the CAFE Methoden_US
dc.title.alternativeThe Effect of Thermal Residual Stresses on Ductile-to-Brittle Transition of a Welded TMCR Steel by Using CAFE Methoden_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.rights.holderCopyright: The authors. This is an open access article distributed under the terms of the Creative Commons CC-BY license, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. You are not required to obtain permission to reuse this article.en_US
dc.source.journalEuropean Journal of Mechanics. A/Solidsen_US
dc.relation.projectNorges forskningsråd: 228513en_US
cristin.unitnameMaterialer og nanoteknologi

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