Abstract
This paper presents the impact absorbing characteristics of aluminum honeycomb cell under axial impact loading. In order to clarify dynamic impact absorbing characteristics of honeycomb structure generally used as lightweight structure member, following facts were executed on enlarged hexagonal cell mode. For the purpose of the increasing of energy absorption quantity multi-layered cell model were performed dynamic test by dropped hammer impact test machine and FEM analysis about honeycomb increased of the multi-layered number and it changed the ratio of upper cell (h_U) and bottom cell's (h_B) height. As the result of experimental and analytical studies, the fundamental impact absorbing characteristics was able to confirmed multi-layered cell models honeycomb cell. And, 2layered honeycomb cell proved effectiveness that it is not retated to influence by shape or figure.
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