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Shock wave absorption in liquid foams

Monloubou, M (Institut de Physique de Rennes)
Friday 28 February 2014, 12:05-12:30

Seminar Room 1, Newton Institute


Liquid foams are, amongst other usage, used to mitigate shock waves during mine-cleaning operations due to their excellent ability to absorb energy. However, the origins of this important property are still not well understood. We use a shock tube to send a shock wave on a foam sample with controlled liquid fraction and bubble size. We record images with a high speed camera and pressure signals through the sample, giving information about the wave propagation and attenuation, the foam displacement and the destroyed area.


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