Dynamic Property of Aluminum Foam

DOI:

https://doi.org/10.1260/1750-9548.4.2.103

Abstract

Aluminum in the foam of metallic foam is in the early stage of industrialization. It has various beneficial characteristics such as being lightweight, heat resistance, and an electromagnetic radiation shield. Therefore, the use of aluminum foam is expected to reduce the weight of equipment for transportation such as the car, trains, and aircraft. The use as energy absorption material is examined. Moreover aluminum foam can absorb the shock wave, and decrease the shock of the blast. Many researchers have reported about aluminum foam, but only a little information is available for high strain rates (103 s−1 or more). Therefore, the aluminum foam at high strain rates hasn’t been not characterized yet. The purpose in this research is to evaluate the behavior of the aluminum form in the high-strain rate. In this paper, the collision test on high strain rate of the aluminum foam is investigated. After experiment, the numerical analysis model will be made. In this experiment, a powder gun was used to generate the high strain rate in aluminum foam. In-situ PVDF gauges were used for measuring pressure and the length of effectiveness that acts on the aluminum foam. The aluminum foam was accelerated to about 400 m/s from deflagration of single component powder and the foam were made to collide with the PVDF gauge. The high strain rate deformation of the aluminum form was measured at two collision speeds. As for the result, pressure was observed to go up rapidly when about 70% was compressed. From this result, it is understood that complete crush of the cell is caused when the relative volume is about 70%. In the next stage, this data will be compared with the numerical analysis.

References

Tohru Hashimura, M.Fauzan ADZIMAN and Kikuo KISHIMOTO, “Consideration of Impact Energy Absorption of Foamed Aluminum”, Transactions of the Japan Society of Mechanical Engineers. A 73(727) pp. 315-322, 20070325. https://doi.org/10.1299/kikaia.73.315

Goto Tsuneaki, Syono Yasuhiko, “Generation of Very High Pressures by Shock Compression Method and Their Use for Solid State Physics”, Journal of the Physical Society of Japan. 38(12) pp. 927-935, 19831205.

N. Okamoto, “Numerical analysis of food processing using a shock wave”, 2008.

Published

2010-06-30

How to Cite

“Dynamic Property of Aluminum Foam” (2010) The International Journal of Multiphysics, 4(2), pp. 103-111. doi: 10.1260/1750-9548.4.2.103.

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Section

Articles