The fracture properties of thermally modified spruce

Pekka Tukiainen, Mark Hughes

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


    The aim of this study was to investigate the effect of heat treatment intensity, moisture content and testing temperature on the transverse fracture properties of thermally modified Norway spruce in the radial-tangential TR and tangential-radial (TR) crack propagation systems. Small compact tension (CT) specimens were subjected to pure mode I loading, and load-CMOD curves were recorded. Characteristic fracture parameters were calculated. Thermal modification altered both the calculated fracture parameter values and the changes increased as the severity of heat treatment increased. The parameters were altered more in the RT than in TR crack propagation system.

    Original languageEnglish
    Title of host publicationWCTE 2016 - World Conference on Timber Engineering
    PublisherVienna University of Technology
    ISBN (Electronic)9783903039001
    Publication statusPublished - 2016
    MoE publication typeA4 Article in a conference publication
    EventWorld Conference on Timber Engineering - Vienna, Austria
    Duration: 22 Aug 201625 Aug 2016
    Conference number: 14


    ConferenceWorld Conference on Timber Engineering
    Abbreviated titleWCTE
    Internet address


    • CT specimen
    • Fracture
    • RT direction
    • Spruce
    • Thermal modification
    • TR direction

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