Applicability of miniature size bend specimens to determine the master curve reference temperature T0

Kim Wallin (Corresponding Author), Tapio Planman, Matti Valo, Rauno Rintamaa

    Research output: Contribution to journalArticleScientificpeer-review

    58 Citations (Scopus)

    Abstract

    The master curve method enables characterisation of the brittle fracture toughness based on a few relatively small specimens. Presently the general view is that pre-cracked Charpy-V specimens constitute, effectively, the smallest specimens that can be used with the master curve. However, even though the method includes a specific measuring capacity limit for the specimen, it does not specify a minimum specimen size to be used. In this work, the applicability of miniature specimens, smaller than the normal Charpy size bend specimen, are investigated by comparing the test results of miniature and normal Charpy size specimens. Furthermore, the possible differences in estimates from CT- and 3PB-specimen tests are examined.
    Original languageEnglish
    Pages (from-to)1265-1296
    Number of pages32
    JournalEngineering Fracture Mechanics
    Volume68
    Issue number11
    DOIs
    Publication statusPublished - 2001
    MoE publication typeA1 Journal article-refereed

    Keywords

    • brittle fracture
    • master curve
    • miniature specimens
    • validity
    • testing

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