Shock Hugoniot Measurements in Foam

ORAL

Abstract

Foams are found in a variety of protective equipment, including those used in applications involving high-speed impact and blast waves. Despite their exposure to shock wave loadings, there is a considerable lack of shock Hugoniot data for these materials. Typical characterizations of foams have involved the use of split-Hopkinson pressure bars or quasi-static compression machines to determine the stress-strain relationship in the foams. As such, the elastic-plastic response of foam at intermediate pressure ranges continues to be a source of confusion. In the present study, Photonic Doppler Velocimetry is used to measure the shock Hugoniot of a foam for a comparison to its quasi-static compression curves. The deviation of these two curves will be discussed and compared to common plasticity models used to describe dynamic foam behaviour in the literature.

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Authors

  • Oren Petel

    • McGill University, Mechanical Engineering Dept., 817 Sherbrooke St. W., Montreal, Quebec, H3A 2K6, Canada
    • McGill University, Department of Mechanical Engineering, Montreal, QC H3A 0C3, Canada
    • McGill University, Department of Mechanical Engineering, Montr\'eal, QC, H3A 0C3, Canada

  • Simon Ouellet

    • Defence Research and Development Canada Valcartier, Qu\'ebec, QC, G3J 1X5,Canada

  • David Frost

    • McGill University, Mechanical Engineering Dept., 817 Sherbrooke St. W., Montreal, Quebec, H3A 2K6, Canada
    • McGill University, Department of Mechanical Engineering, Montreal, QC H3A 0C3, Canada
    • McGill University, Department of Mechanical Engineering, Montr\'eal, QC, H3A 0C3, Canada
    • McGill University

  • Andrew Higgins

    • McGill University
    • McGill University, Mechanical Engineering Dept., 817 Sherbrooke St. W., Montreal, Quebec, H3A 2K6, Canada
    • McGill University, Department of Mechanical Engineering, Montr\'eal, QC, H3A 0C3, Canada