Unloading behavior of polymers due to dynamic crack propagation (2nd Report, Case of PMMA and Homalite-100)

Kazuo Arakawa, Daisuke Nagoh, Kiyoshi Takahashi

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    1 Citation (Scopus)

    Abstract

    Dynamic stress intensity factor K1D and crack velocity ȧ were determined using single-edge-cracked tensile specimens of PMMA and Homalite-100. To study unloading behavior of the material, load P applied to the specimen was also evaluated as a function of time t. Unloading rate Ṗ, the time derivative of P, was determined to correlate with K1D and ȧ. The findings showed that the change in Ṗ was qualitatively in accord with the change in K1D or ȧ. However, there existed slight differences among the values of t giving peak values of Ṗ, K 1D and ȧ, so that their order was ȧ, Ṗ and K 1d.

    Original languageEnglish
    Pages (from-to)2294-2299
    Number of pages6
    JournalNihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
    Volume64
    Issue number625
    DOIs
    Publication statusPublished - 1998

    All Science Journal Classification (ASJC) codes

    • General Materials Science
    • Mechanics of Materials
    • Mechanical Engineering

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