2021/11/09 by Xingtong Yang, Yang, Xingtong, Xinzhuo Hu +5
Computer Science · Engineering · Mathematics · #Advanced Materials and Mechanics #Cellular and Composite Structures #Computational Engineering #Computational Geometry (cs.CG) #FOS: Computer and information sciences #FOS: Mathematics #Finance #Optimization and Control (math.OC) #Topology Optimization in Engineering #and Science (cs.CE) #cs.CE #cs.CG #math.OC
paper · pdf · doi:10.48550/arxiv.2111.05294
12 pages, submitted to Computer-Aided Design
arxiv created 2021/11/09 · openalex publication_date 2021/11/09 · arxiv updated 2021/11/10 · openalex created_date 2022/05/05 · openalex updated_date 2026/07/28
An optimization method for the design of multi-lattice structures satisfying local buckling constraints is proposed in this paper. First, the concept of free material optimization is introduced to find an optimal elastic tensor distribution among all feasible elastic continua. By approximating the elastic tensor under the buckling-containing constraint, a matching lattice structure is embedded in each macro element. The stresses in local cells are especially introduced to obtain a better structure. Finally, the present method obtains a lattice structure with excellent overall stiffness and local buckling resistance, which enhances the structural mechanical properties.