仿甲虫鞘翅轻质结构及其参数优化设计  

A lightweight structure inspired by beetle's elytra and its optimum design of parameters

作　　者：郭策[1] 江小婷 邹稳蓬 王笑春[2] 

机构地区：[1]南京航空航天大学仿生结构与材料防护研究所,南京210016 [2]蓬莱巨涛海洋工程重工有限公司,蓬莱265607

出　　处：《复合材料学报》2015年第3期856-863,共8页Acta Materiae Compositae Sinica

基　　金：国家重点基础研究发展计划子课题(2011CB302106);国家自然科学基金(51175249;51105201);航空科学基金(2013ZF52072);教育部博士点基金(20123218110010)

摘　　要：为研发新型轻质结构,在对甲虫鞘翅断面微结构进行观测的基础上,分析了甲虫鞘翅的微观结构特征,并据此设计和制备了基于碳纤维/环氧树脂复合材料的仿生轻质结构。对仿生轻质结构进行准静态压缩试验,同时利用有限元法对仿生轻质结构进行压缩性能分析,并将分析结果与试验结果进行对比,证明了有限元分析的正确性和可靠性。在此基础上进一步利用响应面法对仿生轻质结构进行参数优化设计。结果显示:压缩载荷下仿生轻质结构的最大承载力为18 455.00N,较优化前结构的提高了26.4%,压缩比强度为47.43 MPa/(g·cm-3),优化效果显著。In order to develop novel lightweight structure,based on the observation of the cross-sectional microstructure of beetle's elytra,the morphological features of beetle's elytra were analyzed,hereby a bio-inspired lightweight structure made by carbon fiber/epoxy composites was designed.The quasi-static compression test was carried out on bio-inspired lightweight structure,and finite element method was used at the same time to analyse the compressive ability of bio-inspired lightweight structure.The analytical results and the test results were compared,which proved the correctness and effectiveness of the finite element analysis.In addition,the optimum design of parameters of the bio-inspired lightweight structure was conducted by response surface method.The results reveal the maximum bearing capacity of bio-inspired lightweight structure under compressive load reaches 18 455.00 N,which increased by 26.4% compared with the structure before optimization,and its specific compressive strength reaches47.43 MPa/(g·cm-3),the optimal effect is remarkable.

关 键 词：甲虫鞘翅 微观结构 仿生结构 有限元分析 碳纤维复合材料 

分 类 号：TB332[一般工业技术—材料科学与工程]