| Robust topology optimization for multi-material structures considering material uncertainties | |
Zheng, Yongfeng; Chen, Zihao; Liu BS(刘宝收); Li, Ping ; Huang, Jiale; Chen, Zhipeng; Xiang, Jianhua
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| Corresponding Author | Xiang, Jianhua([email protected]) |
| Source Publication | THIN-WALLED STRUCTURES
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| 2024-08-15 | |
| Volume | 201Pages:16 |
| ISSN | 0263-8231 |
| Abstract | Multi-material structures have attracted more and more attention from scholars and engineers, because they usually have good composite performance. Uncertainty factors are ubiquitous in practice, especially for material uncertainties. Multi-material structures contain many materials with different properties, material uncertainties will affect the allocation of material usage, thereby affecting structural performance. Therefore, it is crucial to consider material uncertainties in the design of multi-material structures. This paper detailedly explores the impacts of elastic modulus uncertainty and Poisson's ratio uncertainty on the design of multi-material structures. The topology optimization is to minimize the compliance subjected to a mass constraint, where multiple materials can be freely allocated during the optimization. Floating projection topology optimization is adopted to search for the structural topologies, and robust sensitivity information is derived. For the quantification of material uncertainties, this paper introduces a non-intrusive polynomial chaos expansion (PCE) method to implicitly quantify them, the computational efficiency and accuracy in PCE is compared with the classical Monte Carlo method. Finally, topology optimization examples are provided to demonstrate the effects of elastic modulus uncertainty, Poisson's ratio uncertainty and hybrid uncertainty on the design of multi-material structures. |
| Keyword | Multi -material structures Material uncertainties Lightweight design Topology optimization |
| DOI | 10.1016/j.tws.2024.111990 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001243106100001 |
| WOS Keyword | CONTINUUM STRUCTURES ; LOADING UNCERTAINTY ; DESIGN ; ALGORITHM ; STIFFNESS ; SHAPE ; CODE |
| WOS Research Area | Engineering ; Mechanics |
| WOS Subject | Engineering, Civil ; Engineering, Mechanical ; Mechanics |
| Funding Project | National Natural Science Founda- tion of China[52205265] ; National Natural Science Founda- tion of China[52375418] ; Guangdong Basic and Applied Basic Research Foundation[2022A1515010309] ; Foundation of State Key Laboratory of Digital Manufacturing Equipment and Technology[DMETKF2022013] |
| Funding Organization | National Natural Science Founda- tion of China ; Guangdong Basic and Applied Basic Research Foundation ; Foundation of State Key Laboratory of Digital Manufacturing Equipment and Technology |
| Classification | 一类 |
| Ranking | 3+ |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/95688 |
| Collection | 非线性力学国家重点实验室 |
| Recommended Citation GB/T 7714 | Zheng, Yongfeng,Chen, Zihao,Liu BS,et al. Robust topology optimization for multi-material structures considering material uncertainties[J]. THIN-WALLED STRUCTURES,2024,201:16. |
| APA | Zheng, Yongfeng.,Chen, Zihao.,刘宝收.,Li, Ping.,Huang, Jiale.,...&Xiang, Jianhua.(2024).Robust topology optimization for multi-material structures considering material uncertainties.THIN-WALLED STRUCTURES,201,16. |
| MLA | Zheng, Yongfeng,et al."Robust topology optimization for multi-material structures considering material uncertainties".THIN-WALLED STRUCTURES 201(2024):16. |
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