Print Email Facebook Twitter Microstructure-informed statistical modelling of cleavage fracture in high strength steels considering through-thickness inhomogeneities Title Microstructure-informed statistical modelling of cleavage fracture in high strength steels considering through-thickness inhomogeneities Author Jiang, Q. Bertolo, V.M. Popovich, V.A. Sietsma, J. Walters, C.L. Publication year 2022 Abstract Thick section S690 QT steel is modelled with a modified multibarrier model that is based on the weakest-link mechanism. Segregation bands are modelled as discrete layers which have different grain size, yield properties, and local fracture parameters from outside of the bands. The results show that embrittlement from segregation bands can only be adequately reflected if the in homogeneities of the fracture parameters are accounted for. The present methodology quanti tively captures the cooperation of complex microstructural features in cleavage and can facilitate the trade-off between the effects of various microstructural parameters in toughness control. Subject CleavageFracture toughnessMicrostructural inhomogeneityStatistical modellingBuildings and Infrastructures2015 Urbanisation To reference this document use: http://resolver.tudelft.nl/uuid:dd67cec2-a103-4822-9903-f0ee394de565 DOI https://doi.org/10.1016/j.engfracmech.2022.108432 TNO identifier 967456 Publisher Elsevier Ltd ISSN 0013-7944 Source Engineering Fracture Mechanics, 267 (267), 1-19 Document type article Files PDF jiang-2022-microstructure-informed.pdf