类蜂窝夹层结构的力学特性研究  

Mechanical Properties of Honeycomb-like Sandwich Structure

作　　者：李响 赵恒 余万 李锐 LI Xiang;ZHAO Heng;YU Wan;LI Rui(Hubei Key Laboratory of Hydroelectric Machinery Design&Maintenance,China Three Gorges University,Yichang 443002,China;College of Mechanical and Power Engineering,China Three Gorges University,Yichang 443002,China)

机构地区：[1]三峡大学水电机械设备设计与维护湖北省重点实验室,湖北宜昌443002 [2]三峡大学机械与动力学院,湖北宜昌443002

出　　处：《机械》2021年第10期1-7,共7页Machinery

基　　金：国家自然科学基金青年科学基金(51305232)。

摘　　要：创新设计的类蜂窝夹层结构具有良好的力学性能、吸能特性和更大的设计空间。目前大多研究是将夹层结构的胶粘剂层的厚度忽略不计,并且将整个夹层结构的厚度约等于夹芯层的厚度来进行相关力学性能参数的计算。本文基于Gibson夹层结构胞元理论,考虑胶粘剂层的影响因素,对类蜂窝夹层结构进行力学性能分析;运用复合材料力学和材料力学理论以及应变能等效原理推导出类蜂窝夹层结构的等效力学性能、刚度和等效密度计算公式。本文的研究结论可望为进一步研究新型蜂窝夹层结构提供相应的理论支持。The innovative design of honeycomb-like sandwich structure has good mechanical properties,energy absorption characteristics and larger design space.At present,the thickness of the adhesive layer of the sandwich structure is ignored in most studies,and the thickness of the whole sandwich structure is taken approximately equal to the thickness of the sandwich layer when calculating the relevant mechanical property parameters.Based on the Gibson cell theory of sandwich structure,the mechanical properties of honeycomb-like sandwich structure were analyzed considering the influence factors of adhesive layer.Based on the theory of composite material mechanics,material mechanics,and strain energy equivalent principle,the equivalent mechanical properties,stiffness,and equivalent density of honeycomb-like sandwich structures are derived.Findings of this paper are expected to provide theoretical support for further study of new honeycomb sandwich structure.

关 键 词：类蜂窝 夹层结构 力学性能 刚度 等效密度 

分 类 号：TB333[一般工业技术—材料科学与工程]