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Dynamic Effects on Fracture Surface Formation in Brittle Polymers: (1st Report, Examination of Surface Roughness)

  • Kazuo Arakawa
  • , Kiyoshi Takahashi

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Fracture dynamics of Homalite-100, PMMA and epoxy were studied. Fracture surfaces were examined by a roughness meter to correlate the surface roughness A with such fracture parameters as crack velocity a and crack extension resistance R∗. High-speed photography of fracture caustic images gave those values. Correlations between λ and those parameters have shown that, although λ depends on d or on R∗, λ is not a unique function of one of those parameters. It is found that λ has the best correlation with the product R∗.a, i.e., dissipated energy per unit crack front and unit time.

    Original languageEnglish
    Pages (from-to)1324-1331
    Number of pages8
    JournalTransactions of the Japan Society of Mechanical Engineers Series A
    Volume53
    Issue number491
    DOIs
    Publication statusPublished - 1987

    All Science Journal Classification (ASJC) codes

    • General Materials Science
    • Mechanics of Materials
    • Mechanical Engineering

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