Thermoelastic topology optimization for structures with temperature-dependent material properties  

作　　者：ZHENG Jing RONG XuanPei JIANG Chao 

机构地区：[1]State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body,School of Mechanical and Vehicle Engineering,Hunan University,Changsha 410082,China

出　　处：《Science China(Technological Sciences)》2023年第12期3488-3503,共16页中国科学（技术科学英文版）

基　　金：supported by the National Key R&D Program of China (Grant No.2022YFB3403800);the National Natural Science Foundation of China (Grant Nos.52005172,52207049 and 52235005)。

摘　　要：A thermoelastic topology optimization is proposed for structures with temperature-dependent material properties.Different from the common assumption of constant material properties in traditional thermoelastic topology optimization,the temperaturedependent material properties related to mechanical and thermal fields are taken into account.The non-uniform temperature distribution of the structure is a design dependent field that may vary during the optimization,and the nonlinear heat transfer analysis is considered according to the large temperature gradient.Based on these,a thermoelastic topology optimization model considering temperature-dependent material properties is formulated.The sensitivities with respect to the design variables are derived and the Method of Moving Asymptotes(MMA)algorithm is used to update the topological design variables.A cooperation platform based on MATLAB and ABAQUS is developed for the proposed thermoelastic topology optimization method to deal with problems with arbitrary domains for the design of complex engineering structures.Several typical numerical examples are given to illustrate the effectiveness of the proposed method and show the important influence of the temperaturedependent material properties.

关 键 词：thermoelastic topology optimization nonlinear heat transfer temperature-dependent material properties 

分 类 号：TB30[一般工业技术—材料科学与工程]