Application of the Optoacoustic Method to Assess the Effect of Voids on the Crack Resistance of Structural Carbon Plastics

R. I. Vorobyev, I. V. Sergeichev, A. A. Karabutov, E. A. Mironova, E. V. Savateeva, I. Sh Akhatov

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    5 Citations (Scopus)

    Abstract

    Abstract: The results of an experimental analysis of the effect of the volume content of voids in the range of 0.25–5% on the crack resistance of structural carbon plastics are presented. To obtain a variation of the volume content of voids, samples were manufactured using the vacuum-infusion method with variations in the vacuum strength from –760 to –150 mm Hg. The total volume content of voids was determined by methods of optoacoustic structuroscopy, scanning electron microscopy, and chemical etching to obtain comparative data. The experimental dependences of the characteristics of the interlaminar crack resistance on the volume content of voids under static and cyclic loading of samples in the normal-separation mode were obtained.

    Original languageEnglish
    Pages (from-to)132-136
    Number of pages5
    JournalAcoustical Physics
    Volume66
    Issue number2
    DOIs
    Publication statusPublished - 1 Mar 2020

    Keywords

    • carbon-filled plastic
    • crack resistance
    • optoacoustics
    • porosity
    • vacuum infusion

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