泊松分布
泊松比
材料科学
有限元法
单位(环理论)
航程(航空)
辅助
数学分析
复合材料
统计
数学
热力学
物理
数学教育
作者
Dong Li,Liang Dong,Roderic S. Lakes
标识
DOI:10.1016/j.matlet.2015.11.037
摘要
A novel unit cell structure with re-entrant hollow skeleton was designed and its Poisson's ratio was studied using the finite element method (FEM) as a function of the geometric variables and the parent material Poisson's ratio. The simulation results showed that the Poisson's ratio of the unit cell structure is tunable over the full range of Poisson's ratio (−1 to +0.5) by varying the geometric variables and parent material Poisson's ratio. Three types of samples with identical geometric variables were fabricated via 3D printing using three different materials, and their Poisson's ratios were measured and compared with the ones from FE simulation, and excellent agreement was found between the experimental results and FE simulation.
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