Pressure Transmission in Aluminum Foams Impacted by Underwater Explosion Waves
Z.-Q. Fan, H.-H. Ma, Z.-W. Shen, M.-J. Lin
Department of Modern Mechanics, University of Science and Technology of China
Hefei, 230027 China
Keywords: underwater explosion wave, transmitted wave, aluminum foam, negative pressure, frequency
Abstract
The interaction of underwater explosion waves with aluminum foam plates with different cell types is investigated. It is shown that the transmitted wave that passed through a closed-cell sample can be decomposed into two parts, one with a low-frequency content, which corresponds to the gas pressure in the pores, and one with a high-frequency content, which is argued to be a coupling of waves transmitted by the matrix and wave interactions between the fluid and the matrix of the medium.
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