Topology Optimization of Dual-Material Structures with Porous Materials

Abstract

To improve the buckling resistance of the structure and the effective utilization of materials, a topology optimization algorithm using dual materials is designed in this paper. Among them, the two materials are solid and porous, respectively. The single-material structure topology optimization algorithm in two-dimensional structures has been relatively perfect. However, the two-dimensional algorithm is limited to the topology optimization of a single material, and it cannot improve the buckling resistance of the actual compression structure. At the same time, the optimization algorithm for the three-dimensional structure still needs to be improved. The dual-material topology optimization algorithm using porous materials constructed in this paper assigns porous materials with good compressive capacity to the compression parts and solid materials with good tensile properties to the tension parts. Therefore, the structure of the compression part of the structure is strengthened, and the unnecessary structure of the tension part is simplified. In conclusion, the algorithm in this paper greatly improves the buckling resistance of the structure and maximizes the utilization of each design unit.