Summary
The propagation and attenuation of blast waves through porous layers is one of the important research topics related to safety assessment and prevention from explosion hazards. This study is a part of series of research on shock in complex media. Blast waves passing through porous layer such as polyurethane foam with high-porosities(≈ 98%) and low densities(≈ 28kg/m3) ; and sand layer having low-porosities(≈ 45%) and high densities (≈1500kg/m3) are tested. Peak overpressures in polyurethane foam and sand layer decrease quickly than that in air, as the blast wave is degenerated into compression waves due to its interaction with three-dimensional porosity distribution. Pressure attenuation caused in present complex media are in between 10 to 40% of the peak overpressure value in air.
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Kitagawa, K., Yamashita, S., Takayama, K., Yasuhara, M. (2009). Attenuation properties of blast wave through porous layer. In: Hannemann, K., Seiler, F. (eds) Shock Waves. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-85168-4_10
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DOI: https://doi.org/10.1007/978-3-540-85168-4_10
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-85167-7
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