Effects of Crack Velocity and Acceleration on Dynamic Fracture Toughness of Homalite-100

Kazuo Arakawa, Kiyoshi Takahashi

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    1 Citation (Scopus)

    Abstract

    Effects of the crack velocity à and the crack acceleration ä on the dynamic stress intensity factor Kd of Homalite-100 were studied. Evaluations of Ad à and ä during dynamic crack propagation were made by using the method of caustics in combination with high-speed photography. The relation between Kd and à, i. e. Kd(à), showed that it is not a unique function of à and that the decelerating cracks have larger values of Kd(à) than the accelerating cracks for the same velocities. It is found that Ku(à) for a constant acceleration, i. e. Kd(ä =const), becomes a unique function with respect to a.

    Original languageEnglish
    Pages (from-to)128-134
    Number of pages7
    JournalTransactions of the Japan Society of Mechanical Engineers Series A
    Volume53
    Issue number485
    DOIs
    Publication statusPublished - 1987

    All Science Journal Classification (ASJC) codes

    • Materials Science(all)
    • Mechanics of Materials
    • Mechanical Engineering

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