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On the correlations among dynamic stress intensity factor, crack velocity and acceleration in fast fracture

  • Kazuo Arakawa
  • , Toshio Mada
  • , Kiyoshi Takahashi

    Research output: Contribution to journal › Article › peer-review

    Abstract

    The method of caustics in combination with a Cranz-Schardin high-speed camera was utilized to study dynamic crack propagation in PMMA. Stress intensity factor KID was evaluated in the course of crack propagation which included crack acceleration, deceleration and re-acceleration in one fracture event. Crack velocity á and acceleration ä were also measured to correlate with KID, and the following findings were obtained: (1) KID was an increasing function of á, but their relation was not unique. (2) For a constant velocity á. KID was larger when the crack was decelerated than when it was accelerated. (3) KID was dependent on both á and ä, and KID for a constant acceleration ä could be uniquely related to á.

    Original languageEnglish
    Pages (from-to)883-887
    Number of pages5
    JournalNihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
    Volume66
    Issue number645
    DOIs
    Publication statusPublished - 2000

    All Science Journal Classification (ASJC) codes

    • General Materials Science
    • Mechanics of Materials
    • Mechanical Engineering

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