Jul. 11, 2025 Home   |   About Journal   |   Editorial Board   |   Instruction   |   Subscriptions   |   Contacts Us   |   中文
  2024, Vol. 45 Issue (4): 533-546    DOI: 10.19636/j.cnki.cjsm42-1250/o3.2024.015
Current Issue | Archive | Adv Search |
Multi-resolution Topology Optimization Method for Composite Structures with In-plane Periodicity
Download: PDF (0 KB)   HTML (1 KB) 
Export: BibTeX | EndNote (RIS)      
Abstract  Composite materials have complex structural forms at the microscopic scale, and their structural analysis and design require refined finite element mesh discretization, resulting in a large computational scale. As a common structural form of composites, the in-plane periodic structure can withstand arbitrary directional loads on the macroscopic scale, but it is difficult to characterize its performance and difficult to design and analyze. In this paper, an efficient topology optimization method for in-plane periodic structures is established based on the thick plate assumption and multi-resolution mesh strategy. Firstly, the rough mesh is used to decouple the macro and micro structures, solve the micro edge-value conditions, and carry out the equivalent characterization of the mechanical properties of the non-homogeneous single cell; secondly, the macroscopic edge-value conditions are solved based on the homogenized equivalent properties, and the fine mesh is used to update the design variables and map the density variables. On the one hand, the assumption of thick plate considering out-of-plane shear deformation makes the two-scale topology optimization design more in line with the actual load-bearing scenarios; on the other hand, the multi-resolution modeling strategy is utilized to avoid the problem of limited solvable problem size due to excessive finite element computation without sacrificing the resolution of the optimized configuration.
Key wordsin-plane periodic structures      thick plate theory      multi-resolution mesh      two-scale topology optimization     
Received: 28 November 2023      Published: 02 July 2024
ZTFLH:  O343.2  
Service
E-mail this article
Add to my bookshelf
Add to citation manager
E-mail Alert
RSS
Articles by authors
Cite this article:   
URL:  
http://manu39.magtech.com.cn/Jwk_gtlxxb/EN/10.19636/j.cnki.cjsm42-1250/o3.2024.015     OR     http://manu39.magtech.com.cn/Jwk_gtlxxb/EN/Y2024/V45/I4/533
Copyright © Editorial Board of
Supported by: Beijing Magtech