摘要
介绍了一种具有十字形拓扑形状的柔性蜂窝,并对该蜂窝结构的剪切力学性能分析方法进行研究。先将其等效为正交各向异性材料,采用代表体元法推导出十字形蜂窝的面内切变弹性模量的计算公式,同时还研究了切变模量与蜂窝形状参数的关系,并通过仿真分析和力学性能试验进行验证。结果表明,基于代表体元法对十字形柔性蜂窝的面内切变模量进行分析是合理有效的,推导出的理论公式可以指导蜂窝参数设计。
In this dissertation, a kind of flexible honeycomb with a topological shape of cruciform was introduced. Research on the analysis method for the shear mechanical properties of the honeycomb structure was carried out. The in-plane shear modulus of the honeycomb was analyzed by representative volume element method, since the honeycomb was equivalent to an orthotropic material. The relationship between shear modulus and shape parameters of the honeycomb was studied. Simulation and mechanical tests show correct results accordant with the analytical method. The formulas can be used for the honeycomb parameters design.
出处
《航空科学技术》
2017年第6期61-65,共5页
Aeronautical Science & Technology
关键词
变体飞机
十字形蜂窝
面内剪切
切变模量
morphing aircraft
cruciform honeycomb
in-plane shear
equivalent elastic modulus
