南京理工大学学报（自然科学版）2024，Vol.48Issue(1)：53-61,9.DOI:10.14177/j.cnki.32-1397n.2024.48.01.005
基于参数化建模的负泊松比微结构性能分析与优化
Analysis and optimization of cellular structure with negative Poisson's ratio based on parametric modeling
摘要
Abstract
To improve the efficiency of analyzing the effects of structural parameters on mechanical properties of cellular structure,a parametric modeling method based on secondary development of ABAQUS is proposed.In this paper,the double-headed arrow cellular structure with negative Poisson's ratio is taken as research object.Firstly,the graphical user interface(GUI)of parametric modeling is designed based on secondary development of ABAQUS,and the quasi-static compression test is carried out by using 3D printing method to verify the accuracy of finite element model established by the above parametric platform.Based on this,response surface models of peak collision force and specific energy absorption are established.The NSGA-Ⅱ multi-objective genetic optimization algorithm is utilized to optimize impact performances of the cellular structure with the objectives of minimum peak collision force and the maximum specific energy absorption and with the design variables of θ1,θ2,TL,TM,and the optimal structural topology parameters can be obtained.Through analyses on impact performances of the cellular structure after optimization,the peak collision force decreases by 14.36% and the specific energy absorption increases by 33.72% compared with those of cellular structure before optimization.关键词
二次开发/参数化建模/负泊松比微结构/力学性能/优化设计Key words
secondary development/parametric modeling/cellular structure with negative Poisson's ratio/mechanical property/optimization design分类
交通工程引用本文复制引用
王义成,赵颖,李云伍,王月强,郝纪波..基于参数化建模的负泊松比微结构性能分析与优化[J].南京理工大学学报（自然科学版）,2024,48(1):53-61,9.基金项目
国家自然科学基金青年科学基金项目(52202451) （52202451）
青年人才托举工程项目(2021QNRC001) （2021QNRC001）
