A statistical interpretation of the CTOD-design curve and guidelines to assess HAZ-toughness

Kim Wallin

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    Abstract

    The CTOD-design curve contains an internal safety factor, but the exact value of the factor has not been previously known. Experimental safety factors are the product of the internal safety factor and an external safety factor from the CTOD test results themselves. Here, the CTOD-design curve safety factor is determined based on a theoretical statistical treatment of experimental data.

    Presently only a few crude rules exist for the assessment of HAZ fracture toughness. They are all based on a microstructural validation of each specimen after the test. Because of difficulty to obtain valid results many tests are performed in vain. New, more efficient guidelines for performing CTOD testing of HAZ with respect to assessment of local brittle zones are given, based on statistical modelling.
    Original languageEnglish
    Title of host publicationFracture behaviour and design of materials and structures
    Subtitle of host publicationProceedings of the 8th Biennial European Conference on Fracture, ECF8
    EditorsD. Firrao
    Place of PublicationWarley
    Pages1516-1521
    Publication statusPublished - 1990
    MoE publication typeA4 Article in a conference publication
    EventFracture behaviour and design of materials and structures (ECF8) : Gruppo Italiano Frattura (IGF) and European Group on Fracture (EGF) - Torino, Italy
    Duration: 1 Oct 19905 Oct 1990

    Conference

    ConferenceFracture behaviour and design of materials and structures (ECF8)
    CountryItaly
    CityTorino
    Period1/10/905/10/90

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  • Cite this

    Wallin, K. (1990). A statistical interpretation of the CTOD-design curve and guidelines to assess HAZ-toughness. In D. Firrao (Ed.), Fracture behaviour and design of materials and structures: Proceedings of the 8th Biennial European Conference on Fracture, ECF8 (pp. 1516-1521). https://www.gruppofrattura.it/ocs/index.php/esis/ECF8/paper/view/5363