Comparison of Thermal Maps with Damage Revealed by Silicone Impregnation

Atsushi Tanaka, Heikki Kettunen, Tatsuo Yamauchi

    Research output: Contribution to journalArticleScientificpeer-review

    1 Citation (Scopus)

    Abstract

    Two different techniques were used to detect the local fracture process zone of paper. The silicone impregnation technique was used to reveal the area where broken bonds scatter light. Thermographic technique was used to measure the local temperature variation at crack tip. In the in-plane tear test, the area where temperature rises was larger than the area of damage revealed by the silicone technique. This could derive from heat generation during elastic destraining. In the short span tensile test, temperature profile was the same as in the in-plane tear test for every sample. On the basis of our results, the fracture process zone does not seem vary much between different in-plane test geometries.
    Original languageEnglish
    Pages (from-to)287-290
    Number of pages4
    JournalPaperi ja puu
    Volume85
    Issue number8
    Publication statusPublished - 2003
    MoE publication typeA1 Journal article-refereed

    Keywords

    • Fracture
    • Fiber bonding
    • Damage
    • Image analysis
    • Infrared thermography
    • Test methods

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