湖北汽车工业学院学报2023，Vol.37Issue(4)：64-69,75,7.DOI:10.3969/j.issn.1008-5483.2023.04.013
多型负泊松比材料-结构协同设计
Collaborative Design of Materials and Structures with Multi-type Negative Poisson's Ratios
摘要
Abstract
In order to improve the stiffness performance and ensure the impact and energy absorption characteristics of materials with negative Poisson's ratios,a collaborative optimization design of materi-als and structures was proposed,with the minimum Poisson's ratio as the goal.In addition,the relative density of each element in the design area of microscopic materials was taken as the design variable,and the optimal microstructure under multiple volume ratios was optimized.The material distribution of the macro-structure was obtained based on the optimization objective of maximum stiffness,and then the arrangement and combination of the microstructure were guided by the optimal macro-material dis-tribution.The material model with a negative Poisson's ratio of a multi-type microstructure was estab-lished.The experimental results show that compared with the single material with a negative Poisson's ratio,the multi-type material with a negative Poisson's ratio has a great stiffness enhancement effect and better energy absorption capacity.关键词
负泊松比/冲击吸能/拓扑优化/微结构设计Key words
negative Poisson's ratio/impact and energy absorption/topology optimization/microstruc-ture design分类
通用工业技术引用本文复制引用
崔飞蝶,董焱章,李青峰..多型负泊松比材料-结构协同设计[J].湖北汽车工业学院学报,2023,37(4):64-69,75,7.基金项目
国家自然科学基金青年科学基金(11502075) （11502075）
湖北省自然科学基金面上科学基金(2022CFB457) （2022CFB457）
汽车零部件技术湖北省协同创新项目(2015XTZX0401) （2015XTZX0401）
湖北汽车工业学院博士科研启动基金(BK201501) （BK201501）
