Interactive Effect Of Shock Wave With Porous Foam
Author(s)
K. Kitagawa, M. Kainuma, K. Takayama, M. Yasuhara
Abstract
Interactive effect of shock wave
with porous foam
K. Kitagawa\ M. Kainuma\ K. Takayama^ M. Yasuhara*
^Department of Mechanical Engineering,
Aichi Institute of Technology, Japan
^ Shock Wave Research Centre, Institute of Fluid Science,
Tohoku University, Japan
Abstract
Collision of a planar shock wave with porous foam is investigated experi-
mentally by holography as well as numerically. We investigate the unsteady
process occurring when a shock wave passes through porous material.
Experiments on shock wave-foam interaction are conducted by using a
shock tube. Experimental form of polyurethane foam is of 60mm x 150mm
cross section with 1200mm long (open cell type, high-porosity ^=0.974 ~
0.987 and low density pc=16~31kg/m^). The deformation and wave
propagation in the foam is visualized by using single-exposure holographic
interferometry and high speed video. The compression wave in the foam
moves at lower velocity than the shock wave (Ms=1.19). When the incident
shock wave h
Keywords
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