动态冲击下峰窝材料的力学行为

MECHANICAL ANALYSIS OF THE IMPACTED HONEYCOMBS

运用理论分析和有限元数值分析两种方法,对六边形蜂窝材料单个胞体在动态冲击下的压缩变形情况进 行研究,发现对于规则蜂窝材料,其面内弹性性质将只取决于胞壁的厚度和边长的比率;同时还用有限元方法模拟了多 个胞体结构在动态冲击下的变形情况,对这类结构的能量吸收能力进行了研究。

Two different approaches, theoretical analytical solution and finite element method, were used to study the mechanical properties of a single impacted hexagonal honeycomb cell, and it's found that for regular honeycombs, the in-plane elastic properties are only determined by the ratio of thickness to length of the cell wall. Then the impacted multi-cells honeycombs were simulated by means of finite element method, and it's ability of absorbing energy were studied.