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 th...
Highlights
Aluminum foam has various beneficial characteristics such as being lightweight, heat resistance, and an electromagnetic radiation shield
The use of aluminum foam is expected to reduce the weight of equipment for transportation such as the car, trains, and aircraft
The purpose in this research is to evaluate the behavior of the aluminum foam in the highstrain rate
Summary
Aluminum foam has various beneficial characteristics such as being lightweight, heat resistance, and an electromagnetic radiation shield. One is a method of introducing the shock wave generated when explosion blasts directly into the sample. To observe the deformation of the aluminum form at high strain rate, the experiment on the explosion method and the powder gun method was conducted. Experimental method The shadowgraph method and a high-speed video camera (HPV-1) were used to observe the transmitted shock wave. In this numerical analysis, we applied Jones-Wilkins-Lee (JWL) equation of state [4] for the high explosive.
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