Measurement of Crack Tip Opening Displacement of Paper: Effects of Specimen Geometry and Initial Crack Length

Kazuyoshi Takagi, Atsushi Tanaka, Tatsuo Yamauchi

    Research output: Contribution to journalArticleScientificpeer-review

    Abstract

    Crack opening displacement (COD) on double edge notched (DEN), single edge notched (SEN) and center notched (SCN) specimens with various crack length was quantitatively analyzed by using video-microscopy for a machine-grazed paper. A linear relationship appears between COD and the distance from the crack tip throughout the testing period for all specimens. The COD-clamp displacement relationship seems to consist of three linear segments and the transitional point between the second and the third segment is identified as the onset of crack propagation for all specimens. Thus, CTOD at the onset of crack propagation (CTODc) can be determined despite of specimen geometry and crack length. Specimen geometry a little affects CTODc for the paper tested.
    Original languageEnglish
    Pages (from-to)179-184
    Number of pages6
    JournalNihon Hoso Gakkaishi
    Volume9
    Issue number3
    Publication statusPublished - 2000
    MoE publication typeNot Eligible

    Keywords

    • Papers
    • Fracture toughness testing
    • Crack tip opening displacement
    • Specimen geometry

    Fingerprint Dive into the research topics of 'Measurement of Crack Tip Opening Displacement of Paper: Effects of Specimen Geometry and Initial Crack Length'. Together they form a unique fingerprint.

    Cite this