The deformation modes and energy absorption properties of honeycombs with a negative Poisson's ratio under inplane dynamic crushing were studied by means of finite element simulation in this paper. The results show that behavior mechanism of negative Poisson's ratio under dynamic crushing is the same with that at static loading of which is the cave-in or rotation,and this explains the necking phenomena of the stagger-arranged triangle and quadratic cells during the in-plane crushing. The results provide us ...
【基金】
国家自然科学基金项目(11472025)资助~~
【更新日期】
2016-12-28
【分类号】
O341
【正文快照】
LU Zi Xing LI Kang(School of Aeronautic Science and Engineering,Beijing University of Aeronauticsand Astronautics,Beijing 100083,China)引言以蜂窝和泡沫形式呈现的负泊松比多孔材料在航空航天和汽车工业领域内有着广泛的应用[1]84,如弯曲夹层板的芯材[2]、变体机翼?
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