Harmonization and improvement of fracture mechanical design codes for steel constructions

Kim Wallin (Corresponding Author), Päivi Karjalainen-Roikonen, Pasi Suikkanen

    Research output: Contribution to journalArticleScientificpeer-review

    1 Citation (Scopus)


    The fracture mechanics based methodology used to develop the Charpy-V transition temperature criteria in the Eurocode 3 standards EN1993-1-10 and EN1993-1-12, combined with an extension of the original method to higher yield strengths, is used to estimate impact toughness influence factors qi in line with the crane standard EN 13001-3-1. The inherent conservatism in the present Eurocode 3 methodology is quantified and new transition temperature requirements accounting for the built in conservatism in EN 1993-1-10 and EN 1993-1-12 are obtained in the form of a simple table based on the sum of the influence factors ∑qi. The new requirements are universal, i.e. they do not correspond to a specific material standard or sub-grade. The requirements are only a function of the sum of the influence factors ∑qi. The results can be extended to lower transition temperature requirements, if for the applied steels such transition temperatures can be fulfilled.
    Original languageEnglish
    Pages (from-to)22-32
    Number of pages11
    JournalEngineering Fracture Mechanics
    Publication statusPublished - 1 Jan 2018
    MoE publication typeA1 Journal article-refereed


    • fracture toughness
    • material selection
    • structural design
    • transition temperature requirements


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