太原理工大学学报2018，Vol.49Issue(3)：494-500,7.DOI:10.16355/j.cnki.issn1007-9432tyut.2018.03.021
二阶层级自相似六边形蜂窝的面内压缩行为
In-plane Compressive Behavior of a Self-Similar Second Order Hierarchical Hexagonal Honeycomb
摘要
Abstract
The in-plane compressive behaviors of a self-similar second order hierarchical hon-eycomb (SOHH)were simulated by means of finite element simulation using ABAQUS,the de-formation modes of SOHH at different impact velocities were studied,the analytical models of SOHH for calculating plateau stress were established according to energy balance,and theoretical results had good agreement with simulations.Research results show that three deformation modes of SOHH were observed at different impact velocities,that is,quasi-static mode (X Mode),transitional mode (V Mode)and impact mode (I Mode).Impact velocity occupied the main effect on in-plane deformation modes of SOHH,with increasing impact velocity,deforma-tion mode of SOHH transformed from quasi-static mode to impact mode gradually.SOHH was obtained by introducing a hierarchical structure into an ordinary honeycomb,and the deformation of first order cell wall of SOHH was a combination of rotation and shortening under in-plane com-pression.关键词
层级蜂窝/数值模拟/变形模式/理论模型/冲击Key words
hierarchical honeycomb/numerical simulation/deformation mode/analytical model/impact分类
数理科学引用本文复制引用
于国际,李飞鹏,李世强,吴桂英..二阶层级自相似六边形蜂窝的面内压缩行为[J].太原理工大学学报,2018,49(3):494-500,7.基金项目
国家自然科学基金资助项目(11602161) （11602161）
山西省自然科学基金资助项目(201601D021025) （201601D021025）
湖南大学汽车车身先进设计制造国家重点实验室开放基金资助项目(31615008) （31615008）
